Last modified: Fri Apr 20 15:56:23 JST 2012

Welcome to pgpool -II page

pgpool-II$B$H$O(B

pgpool-II$B$O(BPostgreSQL$B@lMQ$N%_%I%k%&%'%"$G!"(BPostgreSQL$B$N%G!<%?%Y!<%9%/%i%$%"%s%H$H(BPostgreSQL$B%5!<%P$N4V$K3d$j9~$`7A$GF0:n$7!"(BPostgrSQL$B$K0J2<$N$h$&$J5!G=$rDI2C$7$^$9!#(B

$B%3%M%/%7%g%s%W!<%j%s%0(B
PostgreSQL$B$X$N@\B3$rJ]B8$7$F$*$-!"F1$8B0@-(B($B%f!<%6L>!"%G!<%?%Y!<%9!"%W%m%H%3%k%P!<%8%g%s(B)$B$r;}$D@\B3$re$9$k$3$H$,$G$-$^$9!#(B
$B%l%W%j%1!<%7%g%s(B
pgpool-II$B$OJ#?t$N(BPostgreSQL$B%5!<%P$r4IM}$9$k$3$H$,$G$-$^$9!#%l%W%j%1!<%7%g%s5!G=$r;HMQ$9$k$3$H$K$h$j!"J*M}E*$K(B2$BBf0J>e$N(BDB$B%5!<%P$K%j%"%k%?%$%`$G%G!<%?$rJ]B8$9$k$3$H$,$G$-!"K|$,0l$I$l$+$N(BDB$B%5!<%P$K>c32$,H/@8$7$F$b1?MQ$r7QB3$9$k$3$H$,$G$-$^$9!#(B
$BIi2YJ,;6(B
$B%l%W%j%1!<%7%g%s$^$?%^%9%?!<%9%l!<%V%b!<%I$G1?MQ$7$F$$$k>l9g!"$I$N%5!<%P$KLd$$9g$o$;$F$bF1$87k2L$,JV$C$F$-$^$9!#B??t$N8!:w%j%/%(%9%H$r$=$l$>$l$N%5!<%P$GJ,C4$7$FIi2Y$r7Z8:$5$;!"%7%9%F%`A4BN$N@-G=$r8~>e$5$;$k$3$H$,$G$-$^$9!#:GNI$N>l9g$K$O%5!<%PBf?t$KHfNc$7$?@-G=8~>e$,8+9~$a$^$9!#FC$KB??t$N%f!<%6$,BgNL$NLd$$9g$o$;$rEj$2$k$h$&$J4D6-$G0RNO$rH/4x$7$^$9!#(B
$B@\B3?t$N@)8B(B
PostgreSQL$B$K@\B32DG=$J%;%C%7%g%s?t$K$O>e8B$,$"$j!"$=$l$rD6$($F@\B3$9$k$3$H$O$G$-$^$;$s!#$+$H8@$C$F!"F1;~%;%C%7%g%s?t$r$`$d$_$KB?$/$9$k$H!"%a%b%j!<$J$I$N%j%=!<%9$,B?$/>CHq$5$l$F%Q%U%)!<%^%s%9$K1F6A$,$"$j$^$9!#(Bpgpool-II$B$G$b%/%i%$%"%s%H$+$i$N@\B3?t$K$O>e8B$,$"$j$^$9$,!"$=$l$rD6$($F$b$?$@$A$K%(%i!<$K$J$k$3$H$O$J$/!"0lDj$N4VBT$?$5$l$k$h$&$K$J$C$F$$$^$9!#$7$?$,$C$F!"(Bpgpool-II$B$O(BPostgreSQL$B$X$N@\B3MW5a$r
$B%Q%i%l%k%/%(%j(B
$BJ#?t$N%5!<%P$K%G!<%?$rJ,3d$7$F$l$N%5!<%P$KF1;~$K8!:wLd$$9g$o$;$rEj$2$F!"Ld$$9g$o$;$N=hM};~4V$rC;=L$9$k%Q%i%l%k%/%(%j$,MxMQ$G$-$^$9!#FC$KBg5,LO$J%G!<%?%Y!<%9$KBP$7$F8!:w$r

pgpool-II$B$O(BPostgreSQL$B%P%C%/%(%s%I$H%U%m%s%H%(%s%I$NDL?.%W%m%H%3%k$rM}2r$7$F$=$N4V$rCf7Q$7$^$9!#$9$J$o$A!"(BPostgreSQL$B$N%G!<%?%Y!<%9%"%W%j%1!<%7%g%s$+$i$O(BPostgreSQL$B%5!<%P$K!"(BPostgreSQL$B$+$i$O%G!<%?%Y!<%9%"%W%j%1!<%7%g%s$K8+$($k$h$&$K@_7W$5$l$F$$$^$9!#$=$N$?$a!"(BPostgreSQL$B$=$N$b$N$O$b$A$m$s!"%"%W%j%1!<%7%g%s$N3+H/8@8l$K$h$i$:!"(BPostgreSQL$B$N%G!<%?%Y!<%9%"%W%j%1!<%7%g%s$K$[$H$s$I

$B0lIt$N(BSQL$B$K$O(B$B@)8B;v9`(B$B$,$"$j$^$9!#(B

pgpool-II$B$N2TF/4D6-(B

pgpool-II$B$O!"(BLinux$B$r$O$8$a!"(BSolaris$B$d(BFreeBSD$B$J$I$N$[$H$s$I$N(BUNIX$B4D6-$GF0:n$7$^$9!#(BWindows$B$G$OF0$-$^$;$s!#(B

$BBP1~$9$k(BPostgreSQL$B$N%P!<%8%g%s$O!"(BPostgreSQL$B$N(B6.4$B0J9_$G$9!#$?$@$7%Q%i%l%k%/%(%j%b!<%I$r;HMQ$9$k$H$-$O(BPostgreSQL 7.4$B0J9_$r$*;H$$$/$@$5$$!#(B $B$^$?!"(BPostgreSQL 7.4$B$h$jA0$N%P!<%8%g%s$G$O!";HMQ$G$-$k5!G=$K@)8B;v9`$,$"$j$^$9!#(B $B$b$C$H$b!"$=$N$h$&$J8E$$%P!<%8%g%s$N(BPostgreSQL$B$O$=$b$=$b;H$&$Y$-$G$O$"$j$^$;$s!#(B

pgpool-II$BG[2<$GMxMQ$9$k(BPostgreSQL$B%5!<%P$N%a%8%c!<%P!<%8%g%s$O0lCW$7$F$$$J$1$l$P$J$j$^$;$s!#(B $B$^$?!"%*%s%i%$%s%j%+%P%j5!G=$rMxMQ$9$k$H$-$O!"(BOS$B$d%O!<%I%&%'%"%"!<%-%F%/%A%c$rF1$8$b$N$K$7$J$1$l$P$J$j$^$;$s!#(B

pgpool-II$B$N%$%s%9%H!<%k(B

Linux$BMQ$N(BRPM$B%Q%C%1!<%8$O!"(BCentOS$B!"(BRedHat Enterprise Linux$B!"(BFedora$B!"(BDebian$BMQ$J$I$,Ds6!$5$l$F$$$^$9!#(B $B3:Ev%j%]%8%H%j$r%A%'%C%/$7$F$_$F$/$@$5$$!#(B

pgpool-II $B$N%=!<%9%3!<%I$O(Bpgpool$B3+H/%Z!<%8(B $B$+$i%@%&%s%m!<%I$G$-$^$9!#(B

pgpool-II$B$N%=!<%9%3!<%I$+$i$N%$%s%9%H!<%k$K$O!"(Bgcc 2.9$B0J>e!"$*$h$S(BGNU make$B$,I,MW$G$9!#(B $B$^$?!"(Bpgpool-II$B$O(Blibpq(PostgreSQL$BIUB0$N%/%i%$%"%s%H%i%$%V%i%j(B)$B$r;HMQ$9$k$N$G!"%S%k%I$r9T$&%^%7%s>e$K(Blibpq$B$,%$%s%9%H!<%k$5$l$F$$$k$3$H$,I,MW$G$9!#(B $B$^$?!"(BOpenSSL$B%5%]!<%H$rM-8z$K$9$k>l9g$O!"(BOpenSSL$B%i%$%V%i%j$H3+H/MQ$N%X%C%@!<%U%!%$%k$,I,MW$G$9!#(B

configure$B$N $B%=!<%9%3!<%I$N(Btar ball$B$rE83+$7$?$i!"(Bconfigure$B$r ./configure configure$B$K;XDj$G$-$k%*%W%7%g%s$O0J2<$G$9!#(B --prefix=path pgpool-II$BK\BN$d4XO"%U%!%$%k$r%$%s%9%H!<%k$9$k%H%C%W%G%#%l%/%H%j$r;XDj$7$^$9!#(B $B%G%U%)%k%H$O(B/usr/local$B$G$9!#(B --with-pgsql=path PostgreSQL$B$N%/%i%$%"%s%H%i%$%V%i%j$J$I$,%$%s%9%H!<%k$5$l$F$$$k%H%C%W%G%#(B $B%l%/%H%j$r;XDj$7$^$9!#%G%U%)%k%H$O(Bpg_config$B%3%^%s%I$G --with-openssl pgpool-II$B$r(BOpenSSL$B%5%]!<%HIU$G:n@.$7$^$9!#(B $B%G%U%)%k%H$G$O(BOpenSSL$B%5%]!<%H$OL58z$G$9!#(B --enable-sequence-lock pgpool-II 3.0$B%7%j!<%:(B(3.0.4$B$^$G(B)$B8_49$N(Binsert_lock$B$r;HMQ$7$^$9!#(B pgpool-II$B$O!"%7!<%1%s%9%F!<%V%k$N9T$KBP$7$F%m%C%/$r9T$$$^$9!#(B $B$3$l$O!"(B2011$BG/(B06$B7n$h$j8e$K%j%j!<%9$5$l$?(BPostgreSQL 8.2$B0J9_$G$O;HMQ$G$-$^$;$s!#(B --enable-table-lock pgpool-II 2.2$B$H(B2.3$B%7%j!<%:8_49$N(Binsert_lock$B$r;HMQ$7$^$9!#(B pgpool-II$B$O!"A^F~BP>]$N%F!<%V%k$KBP$7$F%m%C%/$r9T$$$^$9!#(B $B$3$l$O!"%m%C%/$,(BVACUUM$B$H6%9g$9$k$?$aHs?d>)$G$9!#(B
make$B$N make make install
pgpool_regclass$B$N%$%s%9%H!<%k(B: PostgreSQL 8.0$B0J9_$r;HMQ$7$F$$$k>l9g$O!"(Bpgpool-II$B$,FbIt$G;HMQ$9$k(BC$B4X?t(Bpgpool_regclass$B$r%$%s%9%H!<%k$7$^$9!#(B $B$3$N4X?t$,%$%s%9%H!<%k$5$l$F$$$J$/$F$b(Bpgpool-II$B$OF0:n$7$^$9$,!"0c$&%9%-!<%^$GF1$8%F!<%V%kL>$rDj5A$7$F$$$F!"(BSQL$BJ8$NCf$G%9%-!<%^L>$r>JN,$7$F$$$k>l9g$K!"IT6q9g$,@8$8$k$3$H$,$"$j$^$9(B($B0l;~%F!<%V%k$r=|$/(B)$B!#(B $B$7$?$,$C$F!"2DG=$J$i$P(Bpgpool_regclass$B$r%$%s%9%H!<%k$9$k$3$H$r$*4+$a$7$^$9!#(B $B$3$N%$%s%9%H!<%k$O!"(Bpgpool-II$B$,%"%/%;%9$9$kM=Dj$N$9$Y$F$N(BPostgreSQL$B%5!<%P$G cd pgpool-II-x.x.x/sql/pgpool-regclass make make install psql -f pgpool-regclass.sql template1 pgpool-regclass.sql$B$N
insert_lock$B%F!<%V%k$N:n@.(B: $B%l%W%j%1!<%7%g%s%b!<%I$G(Binsert_lock$B$rMxMQ$7$?$$>l9g$O!"GSB>@)8fMQ$N%F!<%V%k(Bpgpool_catalog.insert_lock$B$r:n@.$7$^$9!#(B insert_lock$B%F!<%V%k$,B8:_$7$J$/$F$b:#$N$H$3$m(Binsert_lock$B$OF0:n$7$^$9$,!"$=$N>l9g$O!"A^F~BP>]$N%F!<%V%k$KBP$7$F%m%C%/$,9T$o$l$^$9!#$3$l$O(Bpgpool-II 2.2$B$H(B2.3$B%7%j!<%:$NF0:n$HF1$8$G$9!#A^F~BP>]$N%F!<%V%k$KBP$9$k%m%C%/$O!"(BVACUUM$B$H6%9g$7$F(BINSERT$B=hM}$,D9;~4V$,BT$?$5$l$k2DG=@-$,$"$j$^$9!#(B $B$7$?$,$C$F!"(Binsert_lock$B%F!<%V%k$r:n@.$9$k$3$H$r$*4+$a$7$^$9!#(B $B%F!<%V%k$N:n@.$O!"(Bpgpool-II$B$,%"%/%;%9$9$kM=Dj$N$9$Y$F$N(BPostgreSQL$B%5!<%P$G cd pgpool-II-x.x.x/sql psql -f insert_lock.sql template1 insert_lock.sql$B$N

$B0J>e$G%$%s%9%H!<%k$,40N;$7$^$9(B(GNU make$B$,I,MW$J$N$G!"(BSolaris$B$d(BFreeBSD$B$J$I$G$O(B make$B$r(Bgmake$B$KFI$_BX$($F$/$@$5$$(B)$B!#(B

pgpool-II$B$N@_Dj(B

pgpool-II$B$N@_Dj%U%!%$%k$O%G%U%)%k%H$G$O(B/usr/local/etc/pgpool.conf$B$*$h$S(B /usr/local/etc/pcp.conf$B$G$9!#(Bpgpool-II$B$OF0:n%b!<%I$K$h$C$F;HMQ$G$-$k5!G=$H!"(B $BI,MW$J@_Dj9`L\$,0[$J$j$^$9!#(B

$B;HMQ$G$-$k5!G=(B/$B%b!<%I(B	raw$B%b!<%I(B(*3)	$B%l%W%j%1!<%7%g%s%b!<%I(B	$B%^%9%?%9%l!<%V%b!<%I(B	$B%Q%i%l%k%/%(%j%b!<%I(B
$B%3%M%/%7%g%s%W!<%j%s%0(B	$B!_(B	$B!{(B	$B!{(B	$B!{(B
$B%l%W%j%1!<%7%g%s(B	$B!_(B	$B!{(B	$B!_(B	$B"$(B(*1)
$BIi2YJ,;6(B	$B!_(B	$B!{(B	$B!{(B	$B"$(B(*1)
$B%U%'%$%k%*!<%P(B	$B!{(B	$B!{(B	$B!{(B	$B!_(B
$B%*%s%i%$%s%j%+%P%j(B	$B!_(B	$B!{(B	$B"$(B(*2)	$B!_(B
$B%Q%i%l%k%/%(%j(B	$B!_(B	$B!_(B	$B!_(B	$B!{(B
$B%5!<%PBf?t(B	1$B0J>e(B	2$B0J>e(B	2$B0J>e(B	2$B0J>e(B
$B%7%9%F%`(BDB	$BITMW(B	$BITMW(B	$BITMW(B	$BI,MW(B

(*1)$B%Q%i%l%k%/%(%j%b!<%I$G$O!"%l%W%j%1!<%7%g%s$^$?$OIi2YJ,;6$rM-8z$K$9$kI,MW$,$"$j$^$9!#(B $B$?$@$7!"J,3d$7$FJ]B8$7$F$$$k%F!<%V%k$KBP$7$F$O!"%l%W%j%1!<%7%g%s$J$i$S$KIi2YJ,;6$N5!G=$O;HMQ$5$l$^$;$s!#(B
(*2)$B%^%9%?!<%9%l!<%V%b!<%I$G$O!"(BStreaming Replication$B$HJ;MQ$9$k$H$-$K$N$_%*%s%i%$%s%j%+%P%j$,2DG=$G$9!#(B
(*3)$BC1$K(Bpgpool-II$B$r7PM3$7$F@\B3$9$k$@$1$N%b!<%I$G$9!#(B $B%l%W%j%1!<%7%g%s%b!<%I$b%^%9%?!<%9%l!<%V%b!<%I$bM-8z$K$7$F$$$J$$$H$-$NF0:n$G$9!#(B PostgreSQL$B%5!<%P$X$N@\B3%;%C%7%g%s?t$r@)8B$7$?$j!"(B2$BBf0J>e$N(BPostgreSQL$B%5!<%P$rMQ0U$7$F%U%'%$%k%*!<%PF0:n$r$5$;$?$$$H$-$KMxMQ$7$^$9!#(B

pcp.conf$B$N@_Dj(B

$B$I$NF0:n%b!<%I$G$b!"(Bpcp.conf$B$N@_Dj$OI,MW$G$9!#(Bpgpool-II$B$K$O4IM}pJsZ$,I,MW$K$J$k$N$G!"$=(B $B$N%f!<%6L>$H%Q%9%o!<%I$r(Bpcp.conf$B$KEPO?$7$^$9!#(B pgpool-II$B$r%$%s%9%H!<%k$9$k$H!"(B$prefix/etc/pcp.conf.sample$B$,$G$-$k$N$G!"$=$l$r(B $prefix/etc/pcp.conf$B$H$$$&L>A0$G%3%T!<$7$^$9!#(B

cp $prefix/etc/pcp.conf.sample $prefix/etc/pcp.conf

pcp.conf$B$G$O6uGr9T$d(B#$B$G;O$^$k9T$O%3%a%s%H$H8+$J$5$l$^$9!#(B $B%f!<%6$H%Q%9%o!<%I$O!"(B

$B%f!<%6L>(B:[md5$B0E9f2=$7$?%Q%9%o!<%I(B]

$B$N$h$&$K;XDj$7$^$9!#(B [md5$B0E9f2=$7$?%Q%9%o!<%I(B]$B$O!"(B$prefix/bin/pg_md5$B%3%^%s%I$G:n@.$G$-$^$9!#(B

./pg_md5 foo
acbd18db4cc2f85cedef654fccc4a4d8

$B%Q%9%o!<%I$r0z?t$KEO$7$?$/$J$$>l9g$O(B pg_md5 -p $B$r

./pg_md5 -p
password: <$B%Q%9%o!<%I$rF~NO(B>

pcp.conf$B$O!"(Bpgpool-II$B$rF0:n$5$;$k%f!<%6(BID$B$GFI$_

pgpool.conf$B$N@_Dj(B

$B%5%s%W%k%U%!%$%k(B

pgpool-II$B$r%$%s%9%H!<%k$9$k$H!"%$%s%9%H!<%k@h%G%#%l%/%H%j(B($B%G%U%)%k%H$G$O(B/usr/local)/etc/pgpool.conf.sample$B$,$G$-$k$N$G!"$=$l$r(B $B%$%s%9%H!<%k@h%G%#%l%/%H%j(B/etc/pgpool.conf$B$H$$$&L>A0$G%3%T!<$7$^$9!#(B

cp $B%$%s%9%H!<%k@h%G%#%l%/%H%j(B/etc/pgpool.conf.sample $prefix/etc/pgpool.conf

$B$^$?!"3FF0:n%b!<%IMQ$N%5%s%W%k(Bpgpool.conf$B$,MQ0U$5$l$F$$$^$9!#(B $B$3$A$i$b$4MxMQ2<$5$$!#(B

$BF0:n%b!<%I(B $B%5%s%W%k%U%!%$%kL>(B

$B%l%W%j%1!<%7%g%s%b!<%I(B pgpool.conf.sample-replication

$B%^%9%?!<%9%l!<%V%b!<%I(B(Slony-I) pgpool.conf.sample-master-slave

$B%^%9%?!<%9%l!<%V%b!<%I(B(Streaming replication) pgpool.conf.sample-stream

$B%3%a%s%H$N07$$(B

pgpool.conf$B$G$O6uGr9T$d(B#$B$G;O$^$k9T$O%3%a%s%H$H8+$J$5$l$^$9!#(B

$B6&DL@_Dj9`L\(B

$B3FF0:n%b!<%I$G6&DL$9$k@_Dj9`L\$r@bL@$7$^$9!#(B

listen_addresses

pgpool-II$B$,(BTCP/IP$B%3%M%/%7%g%s$r$^$?$O(BIP$B%"%I%l%9$G(B $B;XDj$7$^$9!#!V(B*$B!W$r;XDj$9$k$H$9$Y$F$N(BIP$B%$%s%?%U%'!<%9$+$i$N%3%M%/%7%g(B $B%s$ro$K

port

pgpool-II$B$,%3%M%/%7%g%s$r

socket_dir

pgpool-II$B$,%3%M%/%7%g%s$r'/var/run'$B$J$I$N%G%#%l%/%H%j$KJQ99$9$k$3$H$r$*4+$a$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

pcp_port

pcp$B$,;HMQ$9$k%]!<%HHV9f$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

pcp_socket_dir

pcp$B$,%3%M%/%7%g%s$r'/var/run'$B$J$I$N%G%#%l%/%H%j$KJQ99$9$k$3$H$r$*4+$a$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

backend_socket_dir

DEPRECATED

$B$3$N%Q%i%a!<%?$O!"(Blibpq$B$N%]%j%7!<$K9g$o$;$F:o=|$5$l$^$9!#(B $BBe$o$j$K(Bbackend_hostname$B%Q%i%a!<%?$r;H$C$F$/$@$5$$!#(B

UNIX$B%I%a%$%s%=%1%C%H7PM3$G(Bpgpool-II$B$,(BPostgreSQL$B$H@\B3$9$k:]$K;HMQ$9$k(B PostgreSQL$B$N(BUNIX$B%I%a%$%s%=%1%C%H$,CV$+$l$F$$$k%G%#%l%/%H%j$G$9!#%G%U%)%k%HCM$O(B/tmp$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

pcp_timeout

pcp$B$,(Bpgppool$B$H@\B3$9$k:]$N%?%$%`%"%&%HCM!#(B0$B$K$9$k$H%?%$%`%"%&%H$7$^$;$s!#(B $B%G%U%)%k%HCM$O(B10($BIC(B)$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

num_init_children

prefork$B$9$k(Bpgpool-II$B$N%5!<%P%W%m%;%9$N?t$G$9!#%G%U%)%k%HCM$O(B32$B$K$J$C$F$$$^$9!#(B $B$3$l$,!"(Bpgpool-II$B$KBP$7$F%/%i%$%"%s%H$,F1;~$K@\B3$G$-$k>e8B$N?t$K$J$j$^$9!#(B $B$3$l$rD6$($?>l9g$O!"$=$N%/%i%$%"%s%H$O!"(Bpgpool-II$B$N$I$l$+$i$N%W%m%;%9$X$N%U%m%s%H%(%s%I$N@\B3$,=*N;$9$k$^$GBT$?$5$l$^$9(B(PostgreSQL$B$H0c$C$F%(%i!<$K$J$j$^$;$s(B)$B!#(B $BBT$?$5$l$k?t$N>e8B$O!"(B2*num_init_children $B$G$9!#(B $B4pK\E*$K8e=R$N(Bmax_pool*num_init_children$BJ,$@$1(BPostgreSQL$B$X$N%3%M%/%7%g%s$,D%$i$l$^$9$,!"B>$K0J2<$N9MN8$,I,MW$G$9!#(B

$BLd$$9g$o$;$N%-%c%s%;%k$r9T$&$HDL>o$N%3%M%/%7%g%s$H$OJL$K?7$?$J%3%M%/%7%g%s$,D%$i$l$^$9!#(B $B$7$?$,$C$F!"$9$Y$F$N%3%M%/%7%g%s$,;HMQCf$N>l9g$OLd$$9g$o$;$N%-%c%s%;%k$,$G$-$J$/$J$C$F$7$^$&$N$G!"$4Cm0U2<$5$$!#(B $BLd$$9g$o$;$N%-%c%s%;%k$rI,$:J]>Z$7$?$$>l9g$O!"A[Dj$5$l$k%3%M%/%7%g%s?t$NG\$NCM$r@_Dj$9$k$3$H$r$*$9$9$a$7$^$9!#(B
$B0lHL%f!<%6$G(BPostgreSQL$B$K@\B3$G$-$k$N$O!"(Bmax_connections - superuser_reserved_connections $BJ,$@$1$G$9!#(B

$B0J>e$r$^$H$a$k$H!"(B

max_pool*num_init_children <= (max_connections - superuser_reserved_connections) ($B%/%(%j$N%-%c%s%;%k$r9MN8$7$J$$>l9g(B)
max_pool*num_init_children*2 <= (max_connections - superuser_reserved_connections) ($B%/%(%j$N%-%c%s%;%k$r9MN8$9$k>l9g(B)

$B$N$I$A$i$+$rK~$?$9$h$&$K@_Dj$7$F$/$@$5$$!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

child_life_time

pgpool-II$B$N;R%W%m%;%9$NuBV$K$J$C$F$+$i(B child_life_time$BIC7P2a$9$k$H!"0lC6=*N;$7$F?7$7$$%W%m%;%9$r5/F0$7$^$9!#(B $B%a%b%j!<%j!<%/$=$NB>$N>c32$KHw$($?M=KIA

child_max_connections

$B3F(Bpgpool-II$B;R%W%m%;%9$X$N@\B32s?t$,$3$N@_DjCM$rD6$($k$H!"$=$N;R%W%m(B $B%;%9$r=*N;$7$^$9!#(Bchild_life_time$B$d(Bconnection_life_time$B$,8z$+$J$$$/(B $B$i$$K;$7$$%5!<%P$G!"(BPostgreSQL$B%P%C%/%(%s%I$,HnBg2=$9$k$N$rKI$0$N$K(B $BM-8z$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

client_idle_limit

$BA02s%/%i%$%"%s%H$+$iMh$?%/%(%j$+$i!"(Bclient_idle_limit $BIC1[$($F$bl9g$O!"%/%i%$%"%s%H$X$N@\B3$r6/@)E*$K@ZCG$7!"%/%i%$(B $B%"%s%H$+$i$N

authentication_timeout

$BG'>Z=hM}$N%?%$%`%"%&%H;~4V$rICC10L$G;XDj$7$^$9!#(B0 $B$r;XDj$9$k$H%?%$(B $B%`%"%&%H$rL58z$K$7$^$9!#(Bauthentication_timeout $B$N%G%U%)%k%HCM$O(B 60 $B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

logdir

$B$3$N%G%#%l%/%H%j2<$K!"(Bpgpool-II$B$N(BDB$B%N!<%I$N>uBV$r5-O?$9$k(Bpgpool_status$B%U%!%$%k$,=q$+$l$^$9!#(B

log_destination

pgpool-II$B$O!"(Bstderr$B$+(Bsyslog$B$N$I$A$i$+$K%m%0$r=q$/$3$H$,$G$-$^$9!#%G%U%)%k%H$O(Bstderr$B$G$9!#(B

$BCm0U(B:syslog$B$r;H$&>l9g$O!"(Bsyslog$B%G!<%b%s$N@_Dj$rJQ99$9$kI,MW$,$"$j$^$9!#(B Note: you will need to alter the configuration of your system's syslog daemon in order to make use of the syslog option for log_destination. pgpool-II$B$O!"(Bsyslog $B%U%!%7%j%F%#(B LOCAL0 $B$+$i(B LOCAL7 $B$^$G$K%m%0$r=q$/$3$H$,$G$-$^$9(B (syslog_facility$B$r$4Mw$/$@$5$$(B)$B!#(B $B$7$+$7!"$[$H$s$I$N%G%U%)%k%H$N(Bsyslog$B@_Dj$O!"$=$N$h$&$J%a%C%;!<%8$rGQ4~$7$F$7$^$$$^$9!#(B $B$=$3$G!"(Bsyslog$B%G!<%b%s$N0J2<$N$h$&$J@_Dj$,I,MW$K$J$j$^$9!#(B

	local0.*    /var/log/pgpool.log

syslog_facility

syslog$B$,M-8z$J>l9g!"$3$N%Q%i%a!<%?$K$h$C$F(Bsyslog$B$N!V%U%!%7%j%F%#!W$r@_Dj$7$^$9!#(B LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7$B$+$iA*Br$7$^$9!#(B $B%G%U%)%k%H$O(B LOCAL0 $B$G$9!#(B $BJ;$;$F(Bsyslog$B%G!<%b%s$N%I%-%e%a%s%H$b$4Mw$/$@$5$$!#(B

syslog_ident

syslog$B$,M-8z$J>l9g!"$3$N%Q%i%a!<%?$K$h$C$F(Bsyslog$B$N%a%C%;!<%8$K$"$i$o$l$k%W%m%0%i%`L>$r@_Dj$7$^$9!#%G%U%)%k%H$O(B"pgpool"$B$G$9!#(B

pid_file_name

pgpool-II$B$N(Bpid file($B%W%m%;%9(BID$B$r3JG<$7$?%U%!%$%k(B)$B$N%U%k%Q%9L>$G$9!#(B $B%G%U%)%k%HCM$O(B'/var/run/pgpool/pgpool.pid'$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

print_timestamp

true$B$J$i$P(Bpgpool-II$B$N%m%0$K%?%$%`%9%?%s%W$rDI2C$7$^$9!#%G%U%)%k%H$O(B true$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

connection_cache

true$B$J$i(BPostgreSQL$B$X$N%3%M%/%7%g%s$r%-%c%C%7%e$7$^$9!#%G%U%)%k%H$O(Btrue$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

health_check_timeout

pgpool-II$B$O%5!<%P>c32$d%M%C%H%o!<%/>c32$r8!CN$9$k$?$a$K!"Dj4|E*$K%P%C(B $B%/%(%s%I$K@\B3$r;n$_$^$9!#$3$l$r!V%X%k%9%A%'%C%/!W$H8@$$$^$9!#>c32(B $B$,8!CN$5$l$k$H!"%U%'%$%k%*!<%P$d=LB`1?E>$r;n$_$^$9!#(B $B$3$N(B $B%Q%i%a!<%?$O!"%M%C%H%o!<%/%1!<%V%k$,H4$1$?:]$J$I$K%X%k%9%A%'%C(B $B%/$,D9;~4VBT$?$5$l$k$N$rKI$0$?$a$N%?%$%`%"%&%HCM$rICC10L$G;XDj$7$^(B $B$9!#%G%U%)%k%H$O(B20$BIC$G$9!#(B0$B$r;XDj$9$k$H%?%$%`%"%&%H=hM}$r$7$^$;$s(B ($B$9$J$o$A(B TCP/IP $B$N%?%$%`%"%&%H$^$GBT$D$3$H$K$J$j$^$9(B)$B!#(B $B$J$*!"%X%k%9%A%'%C%/$rM-8z$K$9$k$H!"%X%k%9%A%'%C%/$N$?$a$NM>J,$N@\(B $BB3$,(B1$B$DI,MW$K$J$j$^$9$N$G!"(BPostgreSQL$B$N(Bpostgresql.conf$B$N@_Dj9`L\$N(B max_connections$B$r>/$/$H$b(B1$BA}$d$9$h$&$K$7$F$/$@$5$$!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

health_check_period

$B%X%k%9%A%'%C%/$r9T$&4V3V$rICC10L$G;XDj$7$^$9!#(B0$B$r;XDj$9$k$H%X%k%9(B $B%A%'%C%/$r9T$$$^$;$s!#%G%U%)%k%H$O(B0$B$G$9(B($B$D$^$j%X%k%9%A%'%C%/$r9T$$(B $B$^$;$s(B)$B!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

health_check_user

$B%X%k%9%A%'%C%/$r9T$&$?$a$N(BPostgreSQL$B%f!<%6L>$G$9!#(B $B$3$N%f!<%6L>$O(BPostgreSQL$B$KEPO?:Q$_$G$J$1$l$P$J$j$^$;$s!#(B $B$5$b$J$$$H!"%X%k%9%A%'%C%/$,%(%i!<$H$J$j$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

health_check_password

$B$3$N%Q%i%a!<%?$O$^$@

failover_command

$B%N!<%I$,@Z$jN%$5$l$?;~$KpJs$KCV$-49$($F%3%^%s%I$r

$BJ8;z(B $B0UL#(B

%d $B@Z$jN%$5$l$?%N!<%IHV9f(B

%h $B@Z$jN%$5$l$?%N!<%I$N%[%9%HL>(B

%H $B?7$7$$%^%9%?!<$N%[%9%HL>(B

%p $B@Z$jN%$5$l$?%N!<%I$N%]!<%HHV9f(B

%D $B@Z$jN%$5$l$?%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

%M $B8E$$%^%9%?!<$N%N!<%IHV9f(B

%m $B?7$7$$%^%9%?!<$N%N!<%IHV9f(B

%P $B8E$$%W%i%$%^%j%N!<%IHV9f(B

%% '%'$BJ8;z(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

$B%U%'%$%k%*!<%P!<;~$K$O!"(Bpgpool$B$O$^$:;R%W%m%;%9$r@ZCG$7$^$9(B($B7k2L$H$7$F!"$9$Y$F$N%;%C%7%g%s$,@ZCG$5$l$^$9(B)$B!#uBV$K$J$j$^$9!#(B

failback_command

$B%N!<%I$,I|5"$7$?;~$KpJs$KCV$-49$($F%3%^%s%I$r

$BJ8;z(B $B0UL#(B

%d $BI|5"$7$?%N!<%IHV9f(B

%h $BI|5"$7$?%N!<%I$N%[%9%HL>(B

%p $BI|5"$7$?%N!<%I$N%]!<%HHV9f(B

%D $BI|5"$7$?%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

%M $B8E$$%^%9%?!<$N%N!<%IHV9f(B

%m $B?7$7$$%^%9%?!<$N%N!<%IHV9f(B

%H $B?7$7$$%^%9%?!<$N%[%9%HL>(B

%P $B8E$$%W%i%$%^%j%N!<%IHV9f(B

%% '%'$BJ8;z(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

follow_master_command

$B%^%9%?!<%N!<%I$N%U%'%$%k%*!<%P!<8e$Kl9g$N$_M-8z$G$9!#(B $BFCpJs$KCV$-49$($F%3%^%s%I$r

$BJ8;z(B $B0UL#(B

%d $B@Z$jN%$5$l$?%N!<%IHV9f(B

%h $B@Z$jN%$5$l$?%N!<%I$N%[%9%HL>(B

%p $B@Z$jN%$5$l$?%N!<%I$N%]!<%HHV9f(B

%D $B@Z$jN%$5$l$?%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

%M $B8E$$%^%9%?!<$N%N!<%IHV9f(B

%m $B?7$7$$%^%9%?!<$N%N!<%IHV9f(B

%H $B?7$7$$%^%9%?!<$N%[%9%HL>(B

%P $B8E$$%W%i%$%^%j%N!<%IHV9f(B

%% '%'$BJ8;z(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

$B6uJ8;zNs0J30$r;XDj$9$k$H!"%^%9%?!<%N!<%I$N%U%'%$%k%*!<%P!<8e$K?7$7$$%^%9%?!<0J30$N$9$Y$F$N%N!<%I$O@Z$jN%$5$l!"%/%i%$%"%s%H$+$i:F$S@\B3$r$l$N%N!<%I$KBP$7$F(Bfollow_master_command$B$K;XDj$7$?%3%^%s%I$,o$O!"$3$3$K(Bpcp_recovery_node$B%3%^%s%I$rAH$_9~$s$@%7%'%k%9%/%j%W%H$J$I$r;XDj$7!"?7$7$$%^%9%?!<$+$i%9%l!<%V$r%j%+%P%j$9$k$?$a$K;HMQ$7$^$9!#(B

fail_over_on_backend_error

true$B$J$i$P!"%P%C%/%(%s%I$N%=%1%C%H$X$N=q$-9~$_$K<:GT$9$k$H%U%'%$%k%*!<%P$7$^$9!#(B $B$3$l$O(Bpgpool-II 2.2.x$B$^$G$N5sF0$HF1$8$G$9!#(B false$B$K$9$k$H!"%U%'%$%k%*!<%P$;$:!"C1$K%(%i!<$,%l%]!<%H$5$l$F%;%C%7%g%s$,@ZCG$5$l$^$9!#(B $B$3$N%Q%i%a!<%?$r(Bfalse$B$K$9$k>l9g$K$O!"(Bhealth check$B$rM-8z$K$9$k$3$H$r$*4+$a$7$^$9!#(B $B$J$*!"$3$N%Q%i%a!<%?$,(Bfalse$B$N>l9g$G$b!"%/%i%$%"%s%H$,(Bpgpool$B$K@\B3$9$k:]$K%P%C%/%(%s%I$X$N@\B3$K<:GT$7$?>l9g!"$"$k$$$O%P%C%/%(%s%I$,%7%c%C%H%@%&%s$5$l$?$3$H$r(Bpgpool-II$B$,8!CN$7$?>l9g$K$O%U%'%$%k%*!<%P$,5/$-$k$3$H$KCm0U$7$F$/$@$5$$!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

ignore_leading_white_space

true$B$J$i$P!"(Bload balance$B$N:]$K(BSQL$BJ89TF,$N6uGr$rL5;k$7$^$9(B($BA43Q%9(B $B%Z!<%9$OL5;k$5$l$^$;$s(B)$B!#$3$l$O!"(BDBI/DBD:Pg$B$N$h$&$K!">!

log_statement

true$B$J$i$P(BSQL$BJ8$r%m%0=PNO$7$^$9!#$3$NLrL\$O(BPostgreSQL$B$N(B log_statement$B%*%W%7%g%s$H;w$F$$$F!"%G%P%C%0%*%W%7%g%s$,$J$$$H$-$G$b(B $BLd$$9g$o$;$r%m%0=PNO$7$FD4$Y$k$3$H$,$G$-$k$N$GJXMx$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

log_per_node_statement

log_statement$B$H;w$F$$$^$9$,!"(BDB$B%N!<%IC10L$G%m%0$,=PNO$5$l$k$N$G!"%l%W%j%1!<%7%g%s$dIi2YJ,;6$N3NG'$,MF0W$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

log_hostname

true$B$J$i$P!"(Bps$B%3%^%s%I$G$N>uBVI=<(;~$K(BIP$B%"%I%l%9$G$O$J$/!"%[%9%HL>(B $B$rI=<($7$^$9!#$^$?!"(Blog_connections$B$,M-8z$J>l9g$K$O%m%0$K%[%9%HL>$r(B $B=PNO$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

log_connections

true$B$J$i$P!"A4$F$N%/%i%$%"%s%H@\B3$r%m%0$X=PNO$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

enable_pool_hba

true$B$J$i$P!"(Bpool_hba.conf$B$K=>$C$F%/%i%$%"%s%HG'>Z$r9T$$$^$9!#(B $B>\:Y$O(B$B%/%i%$%"%s%HG'>Z(B(HBA)$B$N$?$a$N(Bpool_hba.conf$B@_Dj(B $BJ}K!(B$B$r;2>H$7$F$/$@$5$$!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

backend_hostname

$B;HMQ$9$k(BPostgreSQL$B%5!<%P$N%[%9%HL>$r;XDj$7$^$9!#(B pgpool-II$B$O!"$3$N%[%9%HL>$r;H$C$F(BPostgreSQL$B$HDL?.$7$^$9!#(B

TCP/IP$B$r;HMQ$9$k>l9g!"%[%9%HL>$^$?$O(BIP$B%"%I%l%9$r;XDj$G$-$^$9!#(B "/"$B$G;O$^$kJ8;zNs$r;XDj$9$k$H!"(BTCP/IP$B$G$O$J$/!"(BUNIX$B%I%a%$%s%=%1%C%H$r;HMQ$5$l!"(B $B%G%#%l%/%H%jL>$H$_$J$7$F$=$3$K%=%1%C%H%U%!%$%k$,:n@.$5$l$k$3$H$K$J$j$^$9!#(B $B6uJ8;z(B('')$B$r;XDj$9$k$H!"(B/tmp$B2<$K:n@.$7$?(BUNIX$B%I%a%$%s%=%1%C%H$G@\B3$7$^$9!#(B

$Bbackend_hostname0)$B!#(B $B$3$N?t;z$N$3$H$r!V(BDB$B%N!<%I(BID$B!W$H8F$S!"(B0$B$+$i3+;O$7$^$9!#(B DB$B%N!<%I(BID == 0$B$N(BPostgreSQL$B$O!"FCJL$K!V%^%9%?!<(BDB$B!W$H8F$P$l$^$9!#(B $BJ#?t$N(BDB$B%N!<%I$r1?MQ$7$F$$$k>l9g!">r7o$K$h$C$F$O%^%9%?!<(BDB$B$,%@%&%s$7$F$b(B $B1?MQ$rB3$1$k$3$H$,$G$-$^$9!#$3$N>l9g$O!"2TF/Cf$+$D(BDB$B%N!<%I(BID$B$,$b$C$H$b(B $B

$B$?$@$7!"%9%H%j!<%_%s%0%l%W%j%1!<%7%g%s%b!<%I$G1?MQ$7$F$$$k>l9g$O!"(BDB$B%N!<%I(BID$B$,(B0$B$N%N!<%I$K$OFCJL$J0UL#$O$J$/!"%W%i%$%^%j%N!<%I$+$I$&$+$,LdBj$K$J$j$^$9!#(B $B>\:Y$O(BStreaming Replication$B$X$NBP1~(B$B$r$4Mw$/$@$5$$!#(B

1$BBf$7$+(BPostgreSQL$B$r;HMQ$7$J$$>l9g$O!"(B"backend_hostname0"$B$H$7$F$/$@$5$$!#(B

backend_hostname $B$O?7$7$/DI2C$7$?9T$r@_Dj%U%!%$%k:FFI$_9~$_$GDI2C$9$k(B $B$3$H$,$G$-$^$9!#$9$G$K$"$k>pJs$rESCf$GJQ99$9$k$3$H$O$G$-$^$;$s!#JQ99$9(B $B$k>l9g$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

backend_port

$B;HMQ$9$k(BPostgreSQL$B%5!<%P$N%]!<%HHV9f$r;XDj$7$^$9!#(B $Bl9g$O!"(B "backend_port0"$B$H$7$F$/$@$5$$!#(B

backend_port $B$O?7$7$/DI2C$7$?9T$r@_Dj%U%!%$%k:FFI$_9~$_$GDI2C$9$k(B $B$3$H$,$G$-$^$9!#$9$G$K$"$k>pJs$rESCf$GJQ99$9$k$3$H$O$G$-$^$;$s!#JQ99$9(B $B$k>l9g$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

backend_weight

$B;HMQ$9$k(BPostgreSQL$B%5!<%P$KBP$9$kIi2YJ,;6$NHfN($r(B0$B0J>e$N@0?t$^$?$OIbF0>.?tE@$G;XDj$7$^$9!#(B "backend_weight"$B$N8e$K$O!"(BDB$B%N!<%I(BID$B$rIU2C$7$F;HMQ$9$kJ#?t$N(BPostgreSQL$B$r6hJL$7$^$9!#(B 1$BBf$7$+(BPostgreSQL$B$r;HMQ$7$J$$>l9g$O!"(B"backend_weight0"$B$H$7$F$/$@$5$$!#(B $BIi2YJ,;6$r;HMQ$7$J$$>l9g$O!"!V(B1$B!W$r@_Dj$7$F$/$@$5$$!#(B

backend_weight $B$O?7$7$/DI2C$7$?9T$r@_Dj%U%!%$%k:FFI$_9~$_$GDI2C$9$k$3$H$,$G$-$^$9!#(B pgpool-II 2.2.6/2.3$B0J9_$G$O!"@_Dj%U%!%$%k$N:FFI9~$G(Bbackend_weight$BCM$rJQ99$G$-$^$9!#(B $B?7$7$/@\B3$7$?%/%i%$%"%s%H%;%C%7%g%s$+$i!"$3$N?7$7$$(Bweight$BCM$,H?1G$5$l$^$9!#(B $B%^%9%?!<%9%l!<%V%b!<%I$K$*$$$F!"$"$k%9%l!<%V$KBP$7$F4IM}6HL3$re!"Ld$$9g$o$;$,$=$N%9%l!<%V$KAw$i$l$k$N$rKI$.$?$$>l9g$KM-MQ$G$9!#(B

backend_data_directory

$B;HMQ$9$k(B PostgreSQL $B%5!<%P$N%G!<%?%Y!<%9%/%i%9%?$N%Q%9$r;XDj$7$^$9!#(B $Bl9g$K$O@_Dj$9$kI,MW$O$"$j$^$;$s!#(B

backend_data_directory $B$O?7$7$/DI2C$7$?9T$r@_Dj%U%!%$%k:FFI$_9~$_$GDI2C$9$k(B $B$3$H$,$G$-$^$9!#$9$G$K$"$k>pJs$rESCf$GJQ99$9$k$3$H$O$G$-$^$;$s!#JQ99$9(B $B$k>l9g$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

backend_flag

$B%P%C%/%(%s%IC10L$G$NMM!9$J5sF0$r@)8f$9$k%U%i%0$G$9!#(B $Bbackend_flag0 $BJ#?t$N%U%i%0$r(B"|"$B$GO"7k$7$F;XDj$9$k$3$H$,$G$-$^$9!#(B $B8=:_0J2<$N$b$N$,$"$j$^$9!#(B

ALLOW_TO_FAILOVER: $B%U%'%$%k%*!<%P$d%G%?%C%A$,2DG=$K$J$j$^$9!#$3$l$,%G%U%)%k%H$NF0:n$G$9!#(B DISALLOW_TO_FAILOVER$B$HF1;~$K$O;XDj$G$-$^$;$s!#(B
DISALLOW_TO_FAILOVER: $B%U%'%$%k%*!<%P$d%G%?%C%A$,9T$o$l$^$;$s!#(B Hheartbeat$B$d(BPacemaker$B$J$I$N(BHA(High Availability)$B%=%U%H$G%P%C%/%(%s%I$rFs=E2=$7$F$$$k$J$I$N;v>p$G!"(B pgpool-II$BB&$G%U%'%$%k%*!<%P$N@)8f$r$7$FM_$7$/$J$$$H$-$J$I$K;XDj$7$^$9!#(B ALLOW_TO_FAILOVER$B$HF1;~$K$O;XDj$G$-$^$;$s!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

ssl

true$B$J$i$P(Bpgpool-II$B$H%U%m%s%H%(%s%I!"(Bpgpool-II$B$H%P%C%/%(%s%I$N4V$N(BSSL$B@\B3$,2DG=$K$J$j$^$9!#(B $B$J$*!"(Bpgpool-II$B$H%U%m%s%H%(%s%I$N@\B3$K(BSSL$B$,MxMQ$G$-$k$?$a$K$O!"(Bssl_key$B$H(Bssl_cert$B$,@_Dj$5$l$F$J$1$l$P$J$j$^$;$s!#(B

$B%G%U%)%k%H$G$O(BSSL$B%5%]!<%H$O%*%U$K$J$C$F$$$^$9!#(BSSL$B%5%]!<%H$rM-8z$K$9$k$?$a$K$O!"(Bconfigure$B;~$K(BOpenSSL$B%5%]!<%H$rM-8z$K$9$kI,MW$,$"$j$^$9!#>\:Y$O(B$B%$%s%9%H!<%k(B$B$N9`L\$r$4Mw2<$5$$!#(B

ssl$B$rM-8z$K@_Dj$7$?$i!"(Bpgpool$B$N:F5/F0$r$7$F$/$@$5$$!#(B

ssl_key

$B%U%m%s%H%(%s%I$H$N@\B3$K;HMQ$9$k%W%i%$%Y!<%H%-!<%U%!%$%k$N%U%k%Q%9$r;XDj$7$^$9!#(B

ssl_key$B$N%G%U%)%k%HCM$O$"$j$^$;$s!#(B ssl_key$B$N@_Dj$,$J$$>l9g$O!"%U%m%s%H%(%s%I$H$N@\B3$G(BSSL$B$,;HMQ$5$l$J$/$J$j$^$9!#(B

ssl_cert

$B%U%m%s%H%(%s%I$H$N@\B3$K;HMQ$9$k8x3+(Bx509$B>ZL@=q$N%U%k%Q%9$r;XDj$7$^$9!#(B

ssl_cert$B$N%G%U%)%k%HCM$O$"$j$^$;$s!#(B ssl_cert$B$N@_Dj$,$J$$>l9g$O!"%U%m%s%H%(%s%I$H$N@\B3$G(BSSL$B$,;HMQ$5$l$J$/$J$j$^$9!#(B

debug_level

$B%G%P%C%0%a%C%;!<%8$N>\:Y%l%Y%k!#(B0$B$G%G%P%C%0%a%C%;!<%8$N=PNO$J$7!#(B 1$B0J>e$G%G%P%C%0%a%C%;!<%8$r=PNO$7$^$9!#(B $B?t;z$,Bg$-$1$l$P$h$j>\:Y$J%a%C%;!<%8$,=PNO$5$l$k$h$&$K$J$j$^$9(B(3.0$B$G$O:#$N$H$3$m%a%C%;!<%8$N>\:YEY$OJQ$j$^$;$s(B)$B!#(B $B%G%U%)%k%HCM$O(B0$B$G$9!#(B

relcache_expire

$B%j%l!<%7%g%s%-%c%C%7%e$Nl9g$,$"$j!"%j%l!<%7%g%s%-%c%C%7%e$NFbMF$H0lCW$7$J$/$J$k62$l$,$"$j$^$9!#(B relcache_expire$B$K$h$j!"$=$N4m81@-$r%3%s%H%m!<%k$G$-$k$h$&$K$J$j$^$9!#(B

SSL$B>ZL@=q$N@8@.(B

$B>ZL@=q$N07$$$K$D$$$F$O$3$N%^%K%e%"%k$NHO0O30$G$9!#(B PostgreSQL$B%I%-%e%a%s%H(BSSL$B$K$h$k0BA4$J(BTCP/IP$B@\B3(B$B$N>O$K<+J,$GG'>Z$9$k>ZL@=q$r:n@.$9$k%3%^%s%I$NNc$,$"$j$^$9!#(B

raw$B%b!<%I$K$$1$k%U%'%$%k%!<%PF0:n$K$D$$$F(B

raw$B%b!<%I$K$*$$$F!"(B2$BBf0J>e$N(BPostgreSQL$B%5!<%P$r;XDj$9$k$H!"%U%'%$%k%*!<%P(B $B$,2DG=$G$9!#%U%'%$%k%*!<%P$G$O!"@5>o;~$K$O(Bbackend_hostname0$B$G;XDj$7$?(B PostgreSQL$B$N$_$r;HMQ$7!"$[$+$N%5!<%P$K$O%"%/%;%9$7$^$;$s!#(B backend_hostname0$B$N%5!<%P$,%@%&%s$9$k$H!"

$B%3%M%/%7%g%s%W!<%k%b!<%I(B

raw$B%b!<%I$K2C$(!"%3%M%/%7%g%s%W!<%j%s%0$,MxMQ$G$-$k$h$&$K$J$j$^$9!#(B $B%3%M%/%7%g%s%W!<%k%b!<%I$rM-8z$K$9$k$K$O!"(B connection_cache $B$r(Bon$B$K$7$^$9!#(B $B0J2<$N@_Dj9`L\$,%3%M%/%7%g%s%W!<%k$NF0:n$K1F6A$rM?$($^$9!#(B

max_pool

pgpool-II$B$N3F%5!<%P%W%m%;%9$,%-!<%W$9$k(BPostgreSQL$B$X$N:GBg%3%M%/%7%g%s(B $B?t$G$9!#(Bpgpool-II$B$O!"%f!<%6L>!"%G!<%?%Y!<%9$,F1$8$J$i$P%3%M%/%7%g%s$r(B $B:FMxMQ$7$^$9$,!"$=$&$G$J$1$l$P?7$?$K(BPostgreSQL$B$X$N%3%M%/%7%g%s$r3N(B $BN)$7$h$&$H$7$^$9!#$7$?$,$C$F!"$3$3$G$OA[Dj$5$l$k(B[$B%f!<%6L>(B:$B%G!<%?%Y!<(B $B%9L>(B]$B$N%Z%"$Nl9g$O0lHV8E$$%3%M%/%7%g%s$r@ZCG$7!"(B $B$=$N%9%m%C%H$,:FMxMQ$5$l$^$9!#(B max_pool$B$N%G%U%)%k%HCM$O(B4$B$G$9!#(B $B$J$*!"(Bpgpool-II$BA4BN$H$7$F$O!"(Bnum_init_children*max_pool $BJ,$@$1(B PostgreSQL$B$X$N%3%M%/%7%g%s$,D%$i$l$kE@$KCm0U$7$F$/$@$5$$!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

connection_life_time

$B%3%M%/%7%g%s%W!<%kCf$N%3%M%/%7%g%s$NM-8z4|4V$rICC10L$G;XDj$7$^$9!#(B0 $B$r;XDj$9$k$HM-8z4|4V$OL58B$K$J$j$^$9!#(Bconnection_life_time$B$N%G%U%)(B $B%k%HCM$O(B0$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

reset_query_list

$B%;%C%7%g%s$,=*N;$9$k$H$-$K%3%M%/%7%g%s$r=i4|2=$9$k$?$a$N(BSQL$B%3%^%s%I(B $B$r!V(B;$B!W$G6h@Z$C$FNs5s$7$^$9!#%G%U%)%k%H$O0J2<$N$h$&$K$J$C$F$$$^$9$,!"(B $BG$0U$N(BSQL$BJ8$rDI2C$7$F$b9=$$$^$;$s!#(B

   reset_query_list = 'ABORT; DISCARD ALL'

PostgreSQL$B$N%P!<%8%g%s$K$h$C$F;HMQ$G$-$k(BSQL$B%3%^%s%I$,0c$$$^$9!#(B $B3F%P!<%8%g%s$4$H$N$*4+$a@_Dj$O0J2<$G$9(B($B$?$@$7!"(B"ABORT"$B$OI,$:%3%^%s%I$K4^$a$F$/$@$5$$(B)$B!#(B

PostgreSQL$B%P!<%8%g%s(B reset_query_list$B$N?d>)@_DjCM(B

7.1$B0JA0(B ABORT

7.2$B$+$i(B8.2 ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT

8.3$B0J9_(B ABORT; DISCARD ALL

$B!V(BABORT$B!W$O!"(BPostgreSQL 7.4$B0J>e$G$O%H%i%s%6%/%7%g%s%V%m%C%/$NCf$K$$(B $B$J$$>l9g$K$OH/9T$5$l$^$;$s!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

$B%3%M%/%7%g%s%W!<%k%b!<%I$K$$1$k%U%'%$%k%!<%PF0:n$K$D$$$F(B

raw$B%b!<%I$HF1MM$NF0:n$r$7$^$9!#(B

$B%l%W%j%1!<%7%g%s%b!<%I(B

$B%l%W%j%1!<%7%g%s$rM-8z$K$9$k%b!<%I$G$9(B($B@_Dj%U%!%$%k$N?w7A$O(Bpgpool.conf-replication)$B!#(B raw$B%b!<%I!"%3%M%/%7%g%s%W!<%k%b!<%I$K2C$(!"0J2<$r@_Dj$7$^$9!#(B

replication_mode

$B%l%W%j%1!<%7%g%s%b!<%I$GF0:n$5$;$k>l9g$O(Btrue$B$r;XDj$7$F$/$@$5$$!#%G(B $B%U%)%k%HCM$O(Bfalse$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

load_balance_mode

true$B$r;XDj$9$k$H%l%W%j%1!<%7%g%s%b!<%I$^$?$O%^%9%?!<%9%l!<%V%b!<%I$N:]$K!"(BSELECT$BJ8$r%m!<%I%P%i%s%9$7$F8!:w@-G=$r8~>e$5$;$k$3$H$,$G$-$^$9!#%G%U%)%k%HCM$O(Bfalse$B$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

replication_stop_on_mismatch

$B3F(BDB$B%N!<%I$+$iAw$i$l$F$/$k%Q%1%C%H$Nl9g$K!"(BDB$B%N!<%I$r@Z$jJ|$7$F=LB`1?E>$KF~$j$^$9!#(B $BNI$/$"$k%1!<%9$H$7$F$O!"(Breplicate_select$B$,;XDj$5$l$F$$$F(BSELECT$B$,3F(BDB$B%N!<%I$G$N(BDB$B%N!<%I$G$O<:GT$7$?>l9g$,0lNc$G$9(B)$B!#(B $B$?$@$7!"(Bpgpool$B$O%Q%1%C%H$NCf?H$^$G$O%A%'%C%/$7$F$$$J$$$N$G!"(BSELECT$B7k2L$N%G!<%?FbMF$,0[$J$C$F$$$F$b!"=LB`$O5/$-$J$$$3$H$KCm0U$7$F$/$@$5$$!#(B $B=LB`BP>]$N(BDB$B%N!<%I$O!VB??t7h!W$G>/?tGI$K$J$C$?$b$N$,BP>]$K$J$j$^$9!#(B $B$b$7B??t7h$GF1I<$K$J$C$?>l9g$O!"%^%9%?(BDB$B%N!<%I(B(DB$B%N!<%IHV9f$,$b$C$H$b$o$+$$$b$N(B)$B$r4^$`%0%k!<%W$,M%@h$5$l!"$=$l0J30$N%0%k!<%W$K=jB0$9$k(BDB$B%N!<%I$,@Z$jJ|$7$NBP>]$K$J$j$^$9!#(B $B$3$N%*%W%7%g%s$,(Bfalse$B$N>l9g$O!"3:Ev$N%;%C%7%g%s$r6/@)E*$K=*N;$9$k$@$1$KN1$a$^$9!#(B $B%G%U%)%k%HCM$O(Bfalse$B$G$9!#(B

failover_if_affected_tuples_mismatch

$B3F(BDB$B%N!<%I$Gl9g$K!"(BDB$B%N!<%I$r@Z$jJ|$7$F=LB`1?E>$KF~$j$^$9!#(B $B=LB`BP>]$N(BDB$B%N!<%I$O!VB??t7h!W$G>/?tGI$K$J$C$?$b$N$,BP>]$K$J$j$^$9!#(B $B$b$7B??t7h$GF1I<$K$J$C$?>l9g$O!"%^%9%?(BDB$B%N!<%I(B(DB$B%N!<%IHV9f$,$b$C$H$b$o$+$$$b$N(B)$B$r4^$`%0%k!<%W$,M%@h$5$l!"$=$l0J30$N%0%k!<%W$K=jB0$9$k(BDB$B%N!<%I$,@Z$jJ|$7$NBP>]$K$J$j$^$9!#(B $B$3$N%*%W%7%g%s$,(Bfalse$B$N>l9g$O!"3:Ev$N%;%C%7%g%s$r6/@)E*$K=*N;$9$k$@$1$KN1$a$^$9!#(B $B%G%U%)%k%HCM$O(Bfalse$B$G$9!#(B

white_function_list

$B%G!<%?%Y!<%9$KBP$7$F(B$B99?7$r9T$J$o$J$$4X?tL>(B$B$r%3%s%^6h@Z$j$G;XDj$7$^$9!#(B $B$3$N%j%9%H$K4^$^$l$J$$4X?t8F$S=P$7$r4^$`(BSELECT$B$O!"Ii2YJ,;6$NBP>]$H$O$J$i$:!"%l%W%j%1!<%7%g%s%b!<%I$K$*$$$F$O$9$Y$F$N(BDB$B%N!<%I$G

$B4X?tL>$K$O@55,I=8=$r;H$&$3$H$,$G$-$^$9!#(B $B$?$H$($P!"FI$_=P$7$N$_$N4X?t$,(B"get_"$B$"$k$$$O(B"select_"$B$G;O$^$k$J$i$P!"0J2<$N$h$&$J;XDj$,2DG=$G$9!#(B

white_function_list = 'get_.*,select_.*'

black_function_list

$B%G!<%?%Y!<%9$KBP$7$F(B$B99?7$r9T$J$&4X?tL>(B$B$r%3%s%^6h@Z$j$G;XDj$7$^$9!#(B $B$3$N%j%9%H$K4^$^$l$k4X?t8F$S=P$7$r4^$`(BSELECT$B$O!"Ii2YJ,;6$NBP>]$H$O$J$i$:!"%l%W%j%1!<%7%g%s%b!<%I$K$*$$$F$O$9$Y$F$N(BDB$B%N!<%I$G]$H$J$j$^$9!#(B

$B4X?tL>$K$O@55,I=8=$r;H$&$3$H$,$G$-$^$9!#(B $B$?$H$($P!"FI$_=P$7$N$_$N4X?t$,(B"set_"$B!"(B"update_"$B!"(B"delete_"$B$"$k$$$O(B"insert_"$B$G;O$^$k$J$i$P!"0J2<$N$h$&$J;XDj$,2DG=$G$9!#(B

black_function_list = 'nextval,setval,set_.*,update_.*,delete_.*,insert_.*'

white_function_list$B$H(Bblack_function_list$B$NN>J}$r6u0J30$K$9$k$3$H$O$G$-$^$;$s!#(B $B$I$A$i$+0lJ}$N$_$K4X?tL>$r;XDj$7$^$9!#(B

pgpool-II 3.0$B$h$jA0$N%P!<%8%g%s$G$O!"8GDj$G(Bnextval$B$H(Bsetval$B$,=q$-9~$_$r9T$J$&4X?t$H$7$FG'<1$5$l$F$$$^$7$?!#(B $B$=$l$HF1$8F0:n$r9T$J$o$;$k$K$O!"0J2<$N$h$&$K(Bwhite_function_list$B$H(Bblack_function_list$B$r;XDj$7$^$9!#(B

white_function_list = ''
black_function_list = 'nextval,setval,lastval,currval'

$B>e$NNc$G$O!"(Bnextval$B$H(Bsetval$B$K2C$(!"(Blastval$B$H(Bcurrval$B$,DI2C$5$l$F$$$k$3$H$KCm0U$7$F$/$@$5$$!#(B lastval$B$H(Bcurrval$B$O=q$-9~$_$r9T$&4X?t$G$O$"$j$^$;$s$,!"$3$l$i$N4X?t$,Ii2YJ,;6$5$l$k$3$H$K$h$C$F!"%(%i!<$,H/@8$9$k$N$rL$A3$KKI$0$3$H$,$G$-$^$9!#(B black_function_list$B$K4^$^$l$k4X?t$OIi2YJ,;6$5$l$J$$$+$i$G$9!#(B

replicate_select

true $B$r@_Dj$9$k$H!"%l%W%j%1!<%7%g%s%b!<%I$G$O(B SELECT $BJ8$r%l%W%j%1!<%7%g%s$7$^$9!#$3$l$O(B pgpool-II 1.0 $B$^$G$N5sF0$HF1$8$K$J$j$^$9!#(Bfalse $B$r@_Dj$9$k$H(B SELECT $BJ8$r%^%9%?$N$_$KAw?.$7$^$9!#%G%U%)%k%HCM$O(B false $B$G$9!#(B

replicate_select$B!"(Bload_balance_mode$B!"(BSELECT$BLd9g$o$;$,L@<(E*$J%H%i%s%6%/%7%g%s%V%m%C%/$NFbB&$K$"$k$+$I$&$+$I$&$+$G!"%l%W%j%1!<%7%g%s%b!<%I$NF0:n$,JQ2=$7$^$9!#>\:Y$rI=$K<($7$^$9!#(B

SELECT$B$,L@<(E*$J%H%i%s%6%/%7%g%s%V%m%C%/$NFbB&$K$"$k(B Y Y Y N N N Y N

replicate_select$B$,(Btrue Y Y N N Y Y N N

load_balance_mode$B$,(Btrue Y N N N Y N Y Y

$B7k2L(B(R:$B%l%W%j%1!<%7%g%s(B, M: $B%^%9%?$N$_$KAw?.(B, L: $B%m!<%I%P%i%s%9$5$l$k(B) R R M M R R M L

insert_lock

SERIAL$B7?$r;H$C$F$$$k%F!<%V%k$r%l%W%j%1!<%7%g%s$9$k$H!"(BSERIAL$B7?$NNs(B $B$NCM$,(BDB$B%N!<%I$N4V$G0lCW$7$J$/$J$k$3$H$,$"$j$^$9!#$3$NLdBj$O!"(B $B3:Ev%F!<%V%k$rL@<(E*$K%m%C%/$9$k$3$H$G2sHr$G$-$^$9(B($B$b$A$m$s%H%i%s%6(B $B%/%7%g%s$NJBNs@7$K$J$j$^$9$,(B)$B!#$7$+$7!"$=$N$?$a$K$O!"(B

   INSERT INTO ...

$B$r(B

   BEGIN;
   LOCK TABLE ...
   INSERT INTO ...
   COMMIT;

$B$K=q$-49$($J$1$l$P$J$j$^$;$s!#(Binsert_lock$B$r(Btrue$B$K$9$k$H<+F0E*$K%H%i(B $B%s%6%/%7%g%s$N3+;O!"%F!<%V%k%m%C%/!"%H%i%s%6%/%7%g%s$N=*N;$r9T$C$F(B $B$/$l$k$N$G!"$3$&$7$?J$/$3$H$,$G$-$^$9!J$9$G$K%H%i%s%6%/%7%g(B $B%s$,3+;O$5$l$F$$$k>l9g$O(BLOCK TABLE...$B$@$1$,

pgpool-II 2.2$B0J9_$O!"%F!<%V%k$,(BSERIAL$BNs$r;}$D$+$I$&$+<+F0H=JL$9$k$?$a!"(BSERIAL$BNs$,$J$1$l$P7h$7$F%F!<%V%k$r%m%C%/$7$^$;$s!#(B

pgpool-II 3.0.4$B$^$G$N(B3.0$B%7%j!<%:$O!"BP1~$9$k%7!<%1%s%9%F!<%V%k$KBP$7$F9T%m%C%/$r$+$1$k$3$H$GGSB>@)8f$r9T$J$$$^$9!#$=$l0JA0$N%P!<%8%g%s$HHf$Y$k$H!"(BVACUUM(autovacuum$B$r4^$`(B)$B$H$N%m%C%/6%9g$,$J$/$J$k%a%j%C%H$,$"$j$^$9!#$7$+$7!"$3$l$OB>$NLdBj$r0z$-5/$3$7$^$9!#%H%i%s%6%/%7%g%s<~2s$,5/$-$?8e!"%7!<%1%s%9%F!<%V%k$KBP$9$k9T%m%C%/$O(BPostgreSQL$B$NFbIt%(%i!<(B($B>\:Y$K$O!"%H%i%s%6%/%7%g%s>uBV$rJ];}$9$k(Bpg_clog$B$X$N%"%/%;%9%(%i!<(B)$B$r5/$3$7$^$9!#$3$l$rKI$0$?$a!"(BPostgreSQL$B$N%3%"3+H/

pgpool-II 3.0.5$B0J9_$G$O!"?7$7$$(BPostgreSQL$B$,%7!<%1%s%9%F!<%V%k$KBP$9$k%m%C%/$r5v2D$7$J$/$J$C$?$?$a!"(Bpgpool_catalog.insert_lock$B%F!<%V%k$KBP$7$F9T%m%C%/$r$+$1$k$3$H$GGSB>@)8f$r9T$J$$$^$9!#$7$?$,$C$F!"(Bpgpool-II$B7PM3$G%"%/%;%9$9$k$9$Y$F$N%G!<%?%Y!<%9$K(Binsert_lock$B%F!<%V%k$r$"$i$+$8$a:n@.$7$F$*$/I,MW$,$"$j$^$9!#>\:Y$O(Binsert_lock$B%F!<%V%k$N:n@.(B$B$N9`L\$r$4Mw$/$@$5$$!#$b$7!"(Binsert_lock$B%F!<%V%k$,B8:_$7$J$$>l9g$O!"A^F~BP>]$N%F!<%V%k$KBP$7$F%m%C%/$r9T$$$^$9!#$3$l$O!"(Bpgpool-II 2.2$B$H(B2.3$B%7%j!<%:$N(Binsert_lock$B$HF1$8F0:n$G$9!#$^$?!"2a5n$N%P!<%8%g%s$H8_49@-$N$"$k(Binsert_lock$B$r;HMQ$7$?$$>l9g$O!"(Bconfigure$B%9%/%j%W%H$G@_Dj$G$-$^$9!#>\:Y$O(Bconfigure$B$N$B$N9`L\$r$4Mw2<$5$$!#(B

$B$J$*!"$"$^$jI,MW$J$$$+$bCN$l$^$;$s$,!"%3%a%s%H$rMxMQ$7$F!"$3$N5sF0$r(B $B:Y$+$/@)8f$9$k$3$H$b$G$-$^$9!#(B

insert_lock$B$r(Btrue$B$K$7$F!"(BINSERT$BJ8$N@hF,$K(B/*NO INSERT LOCK*/$B%3%a%s%H$rDI2C$9$k!#(B $B$3$N%3%a%s%H$,$"$k$H!"%F!<%V%k%m%C%/$O9T$o$l$^$;$s(B(pgpool-II 3.0$B0J9_$G$bF1MM(B)$B!#(B
insert_lock$B$r(Bfalse$B$K$7$F!"(BINSERT$BJ8$N@hF,$K(B/*INSERT LOCK*/$B%3%a%s%H$rDI2C$9$k!#(B $B$3$N%3%a%s%H$,$"$k$H!"$3$N(BINSERT$BJ8$KBP$7$F$N$_%F!<%V%k%m%C%/$,9T$o$l$^$9(B(pgpool-II 3.0$B0J9_$G$bF1MM(B)$B!#(B

insert_lock$B$N%G%U%)%k%HCM$O(Btrue$B$G$9!#(B $B$J$*!"(Binsert_lock$B$rM-8z$K$7$F(Bregression test$B$r/$/$H$b(B PostgreSQL 8.0$B$G$O(Btransactions, privileges, rules, alter_table$B$,(B fail$B$7$^$9!#(Brule$B$G$O!"(Bview$B$KBP$7$F(BLOCK$B$r$7$h$&$H$7$F$7$^$&$3$H!"(B $B$[$+$N$b$N$O(B

   ! ERROR:  current transaction is aborted, commands ignored until end of transaction block

$B$H$$$&$h$&$J%a%C%;!<%8$,=P$F$7$^$&$?$a$G$9!#$?$H$($P!"(Btransactions $B$G$O!"B8:_$7$J$$%F!<%V%k$KBP$7$F(BINSERT$B$r9T$&%F%9%H$,4^$^$l$F$*$j!"(B pgpool$B$,:G=i$KB8:_$7$J$$%F!<%V%k$KBP$7$F(BLOCK$B$r9T$&7k2L!"%(%i!<$K$J$C(B $B$F%H%i%s%6%/%7%g%s$,%"%\!<%H>uBV$K$J$j!"B3$/(BINSERT$B$G>e5-%(%i!<$,=P(B $B$F$7$^$$$^$9!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

recovery_user

$B%*%s%i%$%s%j%+%P%j$r9T$&$?$a$N(B PostgreSQL $B%f!<%6L>$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

recovery_password

$B%*%s%i%$%s%j%+%P%j$r9T$&$?$a$N(B PostgreSQL $B%f!<%6%Q%9%o!<%I$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

recovery_1st_stage_command

$B%*%s%i%$%s%j%+%P%jCf$K5/F0$9$k%3%^%s%IL>$r;XDj$7$^$9!#(B $B$3$N%9%/%j%W%H$O(BPostgreSQL$B$N%^%9%?%5!<%P(B($B%W%i%$%^%j%5!<%P(B)$B$,5/F0$7$^$9!#(B $B%3%^%s%I%U%!%$%k$O%;%-%e%j%F%#>e$N4QE@$+$i%G!<%?%Y!<%9%/%i%9%?0J2<$K$"$k%3%^%s%I$d%9%/%j%W%H$N$_$r8F$S=P$7$^$9!#(B $BNc$($P!"(Brecovery_1st_stage_command = 'sync-command' $B$H@_Dj$7$F$"$k>l(B $B9g!"(B$PGDATA/sync-command $B$r5/F0$7$h$&$H$7$^$9!#(B

recovery_1st_stage_command $B$O

$B%^%9%?(B($B%W%i%$%^%j(B)$B%G!<%?%Y!<%9%/%i%9%?$X$N%Q%9(B
$B%j%+%P%jBP>]$N(BPostgreSQL$B$N%[%9%HL>(B
$B%j%+%P%jBP>]$N%G!<%?%Y!<%9%/%i%9%?$X$N%Q%9(B

recovery_1st_stage_command $B$r$B@)8B$7$^$;$s(B$B!#;2>H$d99?7$r9T$&$3$H$,$G$-$^$9!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

recovery_2nd_stage_command

2 $B2sL\$N%*%s%i%$%s%j%+%P%jCf$K5/F0$9$k%3%^%s%IL>$r;XDj$7$^$9!#(B $B$3$N%9%/%j%W%H$O(BPostgreSQL$B$N%^%9%?%5!<%P(B($B%W%i%$%^%j%5!<%P(B)$B$,5/F0$7$^$9!#(B $B%3%^%s%I%U%!%$%k$O%;%-%e%j%F%#>e$N4QE@$+$i%G!<%?%Y!<%9%/%i%9%?0J2<$K$"$k%3%^%s%I$d%9%/%j%W%H$N$_$r8F$S=P$7$^$9!#(B $BNc$($P!"(Brecovery_2nd_stage_command = 'sync-command' $B$H@_Dj$7$F$"$k>l(B $B9g!"(B$PGDATA/sync-command $B$r5/F0$7$h$&$H$7$^$9!#(B

recovery_2nd_stage_command $B$O

$B%^%9%?(B($B%W%i%$%^%j(B)$B%G!<%?%Y!<%9%/%i%9%?$X$N%Q%9(B
$B%j%+%P%jBP>]$N(BPostgreSQL$B$N%[%9%HL>(B
$B%j%+%P%jBP>]$N%G!<%?%Y!<%9%/%i%9%?$X$N%Q%9(B

recovery_2nd_stage_command $B$rH!"99?7=hM}$r0l@Z(B$B$B!#$^$?!"%P%C%A(B $B=hM}$J$I$K$h$C$F@\B3$7$F$$$k%/%i%$%"%s%H$,D9;~4VB8:_$7$F$$$k>l9g$K$O(B $B%3%^%s%I$r5/F0$7$^$;$s!#?7$?$J@\B3$r@)8B$7!"8=:_$N@\B3?t$,(B 0 $B$K$J$C$?;~E@(B $B$G%3%^%s%I$r5/F0$7$^$9!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

recovery_timeout

pgpool$B$O!"%*%s%i%$%s%j%+%P%j$N:]$K$9$Y$F$N%/%i%$%"%s%H$,@\B3$r=*N;$9$k$^$GBT$A$^$9!#(B recovery_timeout$B$G$=$N:GBgBT$A;~4V$r;XDj$7$^$9!#C10L$OIC$G$9!#(B $BBT$A;~4V$,(Brecovery_timeout$B$r1[$($k$H!"%*%s%i%$%s%j%+%P%j$OCf;_$5$l!"DL>o$N>uBV$KLa$j$^$9!#(B

$B%"%$%I%k>uBV$N%/%i%$%"%s%H$,<+J,$+$i@ZCG$9$k$N$rBT$A$?$/$J$$>l9g$O!"(Bclient_idle_limit_in_recovery$B$rMxMQ$9$k$3$H$b$G$-$^$9!#(B

recovery_timeout$B$O!"$3$NB>!"%*%s%i%$%s%j%+%P%j$N:G8e$K%j%+%P%jBP>]$N(BDB$B%N!<%I$G(Bpostmaster$B$r5/F0$9$k:]$NBT$A;~4V$K$bMxMQ$5$l$^$9!#(B

recovery_timeout$B$N%G%U%)%k%HCM$O(B90$BIC$G$9!#(B recovery_timeout$B$r(B0$B$H$7$F$b%?%$%`%"%&%H$,L58z$K$J$k$o$1$G$O$J$/!"C1$KB(:B$K%?%$%`%"%&%H$9$k$@$1$G$9$N$GCm0U$7$F$/$@$5$$!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

client_idle_limit_in_recovery

client_idle_limit$B$H;w$F$$$^$9$,!"$3$N%Q%i%a!<%?$O%j%+%P%j$N%;%+%s%I%9(B $B%F!<%8$G$N$_8zNO$,$"$j$^$9!#A02s%/%i%$%"%s%H$+$iMh$?%/%(%j$+$i!"(B client_idle_limit_in_recovery $BIC1[$($F$bl9g$O!"%/(B $B%i%$%"%s%H$X$N@\B3$r6/@)E*$K@ZCG$7!"(B $B%j%+%P%j$N%;%+%s%I%9%F!<%8$N?J9T$,K832$5$l$k$N$rKI$.$^$9!#(B -1$B$r;XDj$9$k$H!"D>$A$K%/%i%$%"%s%H$X$N@\B3$r@ZCG$7$F%;%+%s%I%9%F!<%8$KF~$j$^$9!#(B $B%G%U%)%k%HCM$O(B 0($BL58z(B)$B$G$9!#(B

$B%/%i%$%"%s%H$,K;$7$/!"%"%$%I%k>uBV$K$J$i$J$$>l9g$O(Bclient_idle_limit_in_recovery$B$r@_Dj$7$F$b%;%+%s%I%9%F!<%8$K0\9T$G$-$^$;$s!#(B $B$3$N>l9g!"(Bclient_idle_limit_in_recovery$B$K(B-1$B$r@_Dj$9$k$H!"%/%i%$%"%s%H$,%S%8!<$G$"$C$F$b$?$@$A$K%/%i%$%"%s%H$X$N@\B3$r@ZCG$7!"%;%+%s%I%9%F!<%8$K0\9T$9$k$3$H$,$G$-$^$9!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O@_Dj%U%!%$%k$r:FFI$_9~$_$7$F$/$@$5$$!#(B

lobj_lock_table

$B%i!<%8%*%V%8%'%/%H$N%l%W%j%1!<%7%g%s$r9T$$$?$$$H$-$K%m%C%/4IM}$K;H$&$?$a$N%F!<%V%kL>$r;XDj$7$^$9!#(B $B$3$N%F!<%V%k$,;XDj$5$l$F$$$F!"%i!<%8%*%V%8%'%/%H$N:n@.MW5a$,%/%i%$%"%s%H$+$iAw?.$5$l!"(B $B$+$D$=$NMW5a$NCf$K%i!<%8%*%V%8%'%/%H$N(BID$B$NL@<(E*$J;XDj$,4^$^$l$F$$$J$$>l9g(B($B$D$^$j!"(Blo_creat$B$G%i!<%8%*%V%8%'%/%H$r:n@.$9$k>l9g(B)$B!"(B pgpool-II$B$O!"GSB>@)8f$N$?$a$K$3$N%F!<%V%k$r%m%C%/$7$?8e!"(B $B%i!<%8%*%V%8%'%/%H$r3JG<$9$k%7%9%F%`%+%?%m%0(Bpg_largeobject$B$N%i!<%8%*%V%8%'%/%H$K3JG<$5$l$F$$$k(BID$B$N:GBgCM$rZ$5$l$^$9!#(B

$B$3$N$h$&$J=hM}$NBP>]$H$J$k%i!<%8%*%V%8%'%/%H$NA`:n$O!"(BPostgreSQL$B$N(BC$B8@8lMQ$N(BAPI(libpq)$B$G8@$&$H!"(Blo_creat()$B$G$9!#(B 2010$BG/(B2$B7n;~E@$N2f!9$ND4::$G$O!"0J2<$N8@8l$N%i!<%8%*%V%8%'%/%H:n@.(BAPI$B$O!"$9$Y$F(Blo_creat()$B$r8F$S=P$9$+!"(B $B$^$?$O(Blo_creat()$B$HF1$8DL?.%W%m%H%3%k$r;H$C$F$$$k$N$G!"(Bpgpool-II$B$N>e5-$NA`:n$NBP>]$K$J$j!"%i!<%8%*%V%8%'%/%H$N%l%W%j%1!<%7%g%s$,0BA4$K9T$o$l$k$h$&$K$J$j$^$9!#(B

Java(JDBC$B%I%i%$%P(B)
PHP(pg_lo_create$B4X?t!"$^$?$O(BPDO$B$J$I$N3:Ev(BAPI)
psql$B$+$i(B\lo_import$B$r8F$S=P$9>l9g(B

$B>e5-0J30$G$"$C$F$b!"%i!<%8%*%V%8%'%/%H$N:n@.(BAPI$B$G%i!<%8%*%V%8%'%/%H$N(BID$B$r0z?t$H$7$FEO$9$h$&$K$J$C$F$$$J$$$b$N$O4V0c$$$J$/(Blo_creat()$B$r;H$C$F$*$j!"(Bpgpool-II$B$N>e5-$NA`:n$NBP>]$K$J$k$H9M$($FNI$$$G$7$g$&!#(B

pgpool-II$B$N>e5-=hM}$NBP>]$H$J$i$J$$$h$&$J%i!<%8%*%V%8%'%/%H$N:n@.=hM}$O0J2<$N$b$N$G$9!#(B

libpq$B$N(Blo_create()$B$r;HMQ$7$F$$$k(B
C$B8@8l0J30$N(BAPI$B$G!"(Blo_create()$B$r;HMQ$7$F$$$k$b$N(B
$B%P%C%/%(%s%I4X?t$N(Blo_import$B$r(BSELECT$B$G8F$S=P$9>l9g(B
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lobj_lock_table$B$G;XDj$9$k%F!<%V%k$O$I$N$h$&$JDj5A$N$b$N$G$b9=$$$^$;$s$,!"(B $B$"$i$+$8$a:n@.:Q$G$+$D$9$Y$F$N%f!<%6$,=q$-9~$_2DG=$G$J$1$l$P$J$j$^$;$s!#(B $B$=$N$h$&$J%F!<%V%k$r:n$kNc$r<($7$^$9!#(B

CREATE TABLE public.my_lock_table (); GRANT ALL ON public.my_lock_table TO PUBLIC;

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lobj_lock_table$B$K;XDj$9$k%F!<%V%kL>$,6uJ8;z$N>l9g$O!"%i!<%8%*%V%8%'%/%H$K4X$9$k>e5-$N=hM}$O9T$$$^$;$s(B ($B$7$?$,$C$F!"%i!<%8%*%V%8%'%/%H$N%l%W%j%1!<%7%g%s$OJ]>Z$5$l$^$;$s(B)$B!#(B lobj_lock_table$B$N%G%U%)%k%HCM$O6uJ8;z$G$9!#(B

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PostgreSQL$B$N%P!<%8%g%s$,(B7.4$B0J9_$G$"$k(B
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SELECT$BJ8(B(WITH$BIU$b4^$`!#(Bblack_list$B$^$?$O(Bwhite_list$B$G;XDj$5$l$?=q$-9~$_$r4^$`(BSELECT$B$r=|$/(B)$B$^$?$O(BCOPY TO STDOUT, EXPLAIN, EXPLAIN ANALYZE SELECT... $B$N$$$:$l$+$G$"$k(B
SELECT INTO $BJ8$G$O$J$$(B
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$B%/%(%jJ8;zNs$,(B SELECT$B$^$?$O(BWITH $B$G;O$^$k(B(ignore_leading_white_space = true$B$N>l9g$O6uGr$OL5;k$7$^$9(B)

(replicate_select$B$N9`L\(B$B$b;29M$K$7$F$/$@$5$$(B) $B$^$?!"(B$B>\:Y$JH=Dj>r7o$r%U%m!<%A%c!<%H$K$7$?$b$N(B$B$b$4Mw2<$5$$!#(B $B$J$*!"(B
/*REPLICATION*/ SELECT ...

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$BCm0U(B: JDBC $B%I%i%$%P$J$I$N$h$&$K!"%I%i%$%PFb$G(B autocommit $B$NM-8z!&L58z$N%*%W%7%g%s$,$"$k>l9g!"(B autocommit $B$rL58z$K$9$k$H!"%I%i%$%P$,FbIt$G(B BEGIN $B%3%^%s%I$re!"@5$7$/%m!<%I%P%i%s%9$5$l$J$$2DG=@-$,$"$j$^$9!#(B $B%/%(%j$r%m!<%I%P%i%s%9$5$;$?$$>l9g$O(B autocommit $B$rM-8z$K$7$F$/$@$5$$!#(B $B$?$H$($P(BJDBC$B$G$"$l$P(B setAutoCommit(true) $B$r

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$B%l%W%j%1!<%7%g%s%b!<%I$K$*$$$F!"(Bpgpool$B$O%l%W%j%1!<%7%g%s;~$K(B INSERT$B!"(BUPDATE$B!"(BDELETE $B$N99?77o?t$,$9$Y$F$N%N!<%I$,F1$8$G$J$$>l9g!"(Bfailover_if_affected_tuples_mismatch $B$,(B false$B$J$i$P!"(B $B0U?^E*$K9=J8%(%i!<$r5/$9(BSQL$B$rAw?.$9$k$3$H$K$h$C$F!"%H%i%s%6%/%7%g%s$r%"%\!<%H$5$;$^$9!#(B true$B$J$i$P!"%U%'%$%k%*!<%P$,5/$-$^$9!#$=$N:]!"0J2<$N$h$&$J%(%i!<%a%C%;!<%8$,I=<($5$l$^$9!#(B
=# UPDATE t SET a = a + 1; ERROR: pgpool detected difference of the number of update tuples Possible last query was: "update t1 set i = 1;" HINT: check data consistency between master and other db node
$B%m%0$K$O99$K0J2<$N$h$&$K!"99?79T?t$,5-O?$5$l$^$9(B($B$3$N>l9g$O(BDB$B%N!<%I(B0$B$,(B0$B9T!"(BDB$B%N!<%I(B1$B$,(B1$B9T(B)$B!#(B
2010-07-22 13:23:25 LOG: pid 5490: SimpleForwardToFrontend: Number of affected tuples are: 0 1 2010-07-22 13:23:25 LOG: pid 5490: ReadyForQuery: Degenerate backends: 1 2010-07-22 13:23:25 LOG: pid 5490: ReadyForQuery: Number of affected tuples are: 0 1

$B%^%9%?!<%9%l!<%V%b!<%I(B

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$B%^%9%?!<%9%l!<%V%b!<%I$G$O!"(Bpgpool.conf$B$N(Breplication_mode$B$r(Bfalse$B$K!"(Bmaster_slave_mode $B$r(Btrue$B$K$7$^$9(B($BF1;~$K(Btrue$B$K$O$G$-$^$;$s(B)$B!#(B $B$^$?!"(B'master_slave_sub_mode'$B$r;XDj$7$^$9!#$3$l$O!"(B'slony'($B%G%U%)%k%H(B)$B$+!"(B'stream'$B$G$9!#(B 'slony'$B$O(BSlony-I$B$rMxMQ$9$k;~$K;XDj$7$^$9!#(B 'stream'$B$O!"(BPostgreSQL$BAH$_9~$_$N(BStreaming Replication$B$rMxMQ$9$k$H$-$K;XDj$7$^$9!#(B Slony-I$B$r;H$&>l9g$N@_Dj%U%!%$%k$N?w7A$O(Bpgpool.conf.sample-master-slave$B$G$9!#(B Streaming Replication$B$r;H$&>l9g$N?w7A$O(Bpgpool.conf.sample-stream$B$G$9!#(B

$B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

$B%^%9%?!<%9%l!<%V%b!<%I$G$b!"(BDB$B=q$-9~$_$r9T$J$&4X?t$N8F$S=P$7$r4^$`(BSELECT$B$rIi2YJ,;6$NBP>]$+$i30$9;XDj$r(Bwhite_function_list$B$H(Bblack_function_list$B$G9T$J$&$3$H$,$G$-$^$9!#(B $B>\:Y$O(Bwhite_function_list$B$N9`$r$4Mw2<$5$$!#(B

Streaming Replication$B$X$NBP1~(B

$BA0=R$N$h$&$K!"%^%9%?%9%l!<%V%b!<%I$G!"(B'master_slave_sub mode'$B$K(B'stream'$B$r;XDj$9$k$H!"(BPostgreSQL 9.0$B$+$iMxMQ2DG=$K$J$C$?(BStreaming Replication$B$KBP1~$7$^$9(B (pgpool-II$B$G$O!":#$N$H$3$m!"(BStreaming Replication$B$H(BHot Standby$B$rJ;MQ$9$k$3$H$rA0Ds$K$7$F$$$^$9(B)$B!#(B $B$3$N%b!<%I$G$O!"0J2<$N@_Dj9`L\$bMxMQ$G$-$^$9!#(B

delay_threshold
$B%9%?%s%P%$%5!<%P$X$N%l%W%j%1!<%7%g%s$NCY1d5vMFEY$r%P%$%HC10L$G;XDj$7$^$9!#(B pgpool-II$B$O!"%9%?%s%P%$%5!<%P$NCY1d$,$3$NCM$rD6$($?>l9g$K$O!"(B $BIi2YJ,;6$,M-8z$G$"$C$F$b$=$N(BDB$B%N!<%I$K(BSELECT$B$rAw?.$;$:!"%W%i%$%^%j%5!<%P$KAw$k$h$&$K$7$^$9!#(B delay_threshold$B$,(B0$B$N>l9g$O!"CY1d$N%A%'%C%/$r9T$J$$$^$;$s!#(B $B$^$?!"(Bdelay_threshold$B$,;XDj$5$l$F$$$F$b!"(Bsr_check_period$B$,L58z(B(=0)$B$J$i$P!"$d$O$j$3$N5!G=$OF/$-$^$;$s!#(B $B%G%U%)%k%HCM$O(B0$B$G$9!#(B $B$3$N%Q%i%a!<%?$O@_Dj%U%!%$%k$N:FFI9~$K$h$C$FJQ99$G$-$^$9!#(B

sr_check_period
$B%9%H%j!<%_%s%0%l%W%j%1!<%7%g%s$NCY1d%A%'%C%/$N4V3V$rICC10L$G;XDj$7$^$9!#(B $B%G%U%)%k%HCM$O(B0$B$G!"$3$l$O%A%'%C%/$r9T$o$J$$$3$H$r0UL#$7$^$9!#(B $B$3$N%Q%i%a!<%?$O@_Dj%U%!%$%k$N:FFI9~$K$h$C$FJQ99$G$-$^$9!#(B

sr_check_user
$B%9%H%j!<%_%s%0%l%W%j%1!<%7%g%s$NCY1d%A%'%C%/$r9T$&%f!<%6L>$r;XDj$7$^$9!#(B $B$3$N%f!<%6$O!"$9$Y$F$N%P%C%/%(%s%I$KB8:_$7$J$1$l$P$J$j$^$;$s!#(B $B$5$b$J$1$l$P%(%i!<$K$J$j$^$9!#(B sr_check_user$B$H(Bsr_check_password$B$O!"(Bsr_check_period$B$,(B0$B$G$"$C$F$b(B $B;XDj$,I,MW$G$9!#(Bpgpool-II$B$O!"$I$N%5!<%P$,(Bprimary$B%5!<%P$G$"$k$N$+$rD4$Y$k$?$a$K!"(B PostgreSQL$B%P%C%/%(%s%I$K4X?t8F$S=P$7$N%j%/%(%9%H$rAw$j$^$9!#$=$N%;%C%7%g%s$G(B sr_check_user$B$H(Bsr_check_password$B$,;H$o$l$k$+$i$G$9!#(B $B$3$N%Q%i%a!<%?$O@_Dj%U%!%$%k$N:FFI9~$K$h$C$FJQ99$G$-$^$9!#(B

sr_check_password
$B%9%H%j!<%_%s%0%l%W%j%1!<%7%g%s$NCY1d%A%'%C%/$r9T$&%f!<%6$KBP$9$k%Q%9%o!<%I$r$r;XDj$7$^$9!#(B $B%Q%9%o!<%I$,I,MW$J$1$l$P6uJ8;z(B('')$B$r;XDj$7$^$9!#(B $B$3$N%Q%i%a!<%?$O@_Dj%U%!%$%k$N:FFI9~$K$h$C$FJQ99$G$-$^$9!#(B

log_standby_delay
$B%l%W%j%1!<%7%g%s$NCY1d>u67$r%m%0$9$k>r7o$r;XDj$7$^$9!#(B 'none'$B$r;XDj$9$k$H!"%m%0$r=PNO$7$^$;$s!#(B 'always'$B$J$i%X%k%9%A%'%C%/$r
$B$J$*!"%l%W%j%1!<%7%g%s$NCY1d>u67$O(B show pool_status $B%3%^%s%I$G$b3NG'$G$-$^$9!#(B $B9`L\L>$O(B"standby_delay#"$B$G$9(B(#$B$O(BDB$B%N!<%I(BID$B$G$9(B)$B!#(B

Streaming Replication$B$G$N%U%'%$%k%*!<%P(B

Streaming replication$B$rMxMQ$7$?%^%9%?%9%l!<%V%b!<%I$G$O!"(BPrimary$B$d(BStandby$B%N!<%I$,Dd;_$7$?>l9g$K!"%l%W%j%1!<%7%g%s%b!<%I$HF1$8$h$&$K<+F0%U%'%$%k%*!<%P$r9T$J$o$;$k$3$H$,$G$-$^$9!#(B $BFC$K2?$b@_Dj$7$J$/$F$b!"Dd;_$7$?%N!<%I$r<+F0E*$K@Z$jJ|$9$3$H$,$G$-$^$9$,!"(BStreaming replication$B$G$O!"(B $B!V%H%j%,%U%!%$%k!W$r:n@.$9$k$3$H$K$h$j!"(BStandby$B%N!<%I$r!"%j%+%P%j%b!<%I$+$i99?7Ld$$9g$o$;$ro$N(BPostgreSQL$B$NF0:n%b!<%I$K<+F0JQ99$9$k$3$H$,$G$-$^$9!#(B $B$3$l$rMxMQ$7$F!"%U%'%$%k%*!<%P%3%^%s%I$rJ;MQ$7$F!"(BPrimary$B%N!<%I$,%@%&%s$7$?$H$-$K!"(BStandby$B%N!<%I$,<+F0E*$K$H$C$FBe$k$h$&$J@_Dj$r9T$J$&$3$H$,$G$-$^$9!#(B

$BCm0U(B: $BJ#?t$N(BStandby$B%N!<%I$rMxMQ$7$F$$$k>l9g!"$3$N@_Dj$r9T$J$&$H$-$O!"(Bdelay_threshold$B$r@_Dj$7$F!"B>$N(BStandby$B$K?6$jJ,$1$i$l$?(BSELECT$B$,8E$$%G!<%?$r

$B%U%'%$%k%*!<%P$N@_Dj

$B%U%'%$%k%*!<%PMQ$N%9%/%j%W%H$rE,Ev$J>l=j(B($B$3$3$G$O(B/usr/local/pgsql/bin)$B$KG[CV$7$F!" $ cd /usr/loca/pgsql/bin $ cat failover_stream.sh #! /bin/sh # Failover command for streming replication. # This script assumes that DB node 0 is primary, and 1 is standby. # # If standby goes down, does nothing. If primary goes down, create a # trigger file so that standby take over primary node. # # Arguments: $1: failed node id. $2: new master hostname. $3: path to # trigger file. failed_node=$1 new_master=$2 trigger_file=$3 # Do nothing if standby goes down. if [ $failed_node = 1 ]; then exit 0; fi # Create trigger file. /usr/bin/ssh -T $new_master /bin/touch $trigger_file exit 0; chmod 755 failover_stream.sh
pgpool.conf$B$N!"(Bfailover_commmand$B$r@_Dj$7$^$9!#(B
failover_command = '/usr/local/src/pgsql/9.0-beta/bin/failover_stream.sh %d %H /tmp/trigger_file0'

standby$B%N!<%I$N(Brecovery.conf$B$r@_Dj$7$^$9!#(B recovery.conf$B$N%5%s%W%k(B$B$O(B PostgreSQL$B$N%$%s%9%H!<%k%G%#%l%/%H%j2<$N(B"share/recovery.conf.sample"$B$K$"$j$^$9!#(B $B$3$l$r(Bstanndby$B%N!<%I$N%G!<%?%Y!<%9%/%i%9%?2<$K(B"recovery.conf"$B$H$7$F%3%T!<$7$F$*$-$^$9!#(B $B$=$7$F!"0J2<$N9`L\$r@_Dj$7$^$9!#(B
standby_mode = 'on' primary_conninfo = 'host=primary_host$B$N%[%9%HL>(B user=postgres' trigger_file = '/tmp/trigger_file0'

primary$B%N!<%I$N(Bpostgresql.conf$B$r@_Dj$7$^$9!#(B $B0J2<$ONc$G$9$N$G!"I,$: wal_level = hot_standby max_wal_senders = 1
primary$B%N!<%I$N(Bpg_hba.conf$B$r@_Dj$7$^$9!#(B $B0J2<$ONc$G$9$N$G!"I,$: host replication postgres 192.168.0.10/32 trust

primary$B$H(Bstandby$B$N(BPostgreSQL$B$r5/F0$9$l$P!"(BStreaming replication$B$,3+;O$5$l$^$9!#(B $B$=$7$F!"(Bprimary$B%N!<%I$,%@%&%s$7$?$H$-$K!"<+F0E*$K(Bstandby$B%N!<%I$,DL>o$N(BPostgreSQL$B$H$7$FN)$A>e$,$j!"99?7Ld$$9g$o$;$r
Streaming Replication$B$G$N%/%(%j?6$jJ,$1(B

Streaming replication$B$H(BHot Standby$B$rMxMQ$7$F$$$k4D6-$G$O!"(Bprimary$B%N!<%I$KAw$C$F$h$$Ld$$9g$o$;!"(Bstandby$B$KAw$C$F$b$h$$Ld$$9g$o$;!"N>J}$KAw$i$J$1$l$P$J$i$J$$Ld$$9g$o$;$r87L)$K4IM}$9$kI,MW$,$"$j$^$9!#(B pgpool-II$B$N(BStreaming Replication$B%b!<%I$O!"$3$&$7$??6$jJ,$1$r<+F0E*$K9T$J$$$^$9!#(B $B$3$3$G$O!"$=$N%m%8%C%/$K$D$$$F@bL@$7$^$9!#(B

$B$^$:!"Ld$$9g$o$;$N

Primary$B%N!<%I$K$7$+Aw$i$l$J$$Ld$$9g$o$;(B

INSERT, UPDATE, DELETE, COPY FROM, TRUNCATE, CREATE, DROP, ALTER, COMMENT
SELECT ... FOR SHARE | UPDATE
$B%H%i%s%6%/%7%g%s$NJ,N%%l%Y%k$,%7%j%"%i%$%6%V%k$N>l9g$N(BSELECT
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$B%H%i%s%6%/%7%g%s%3%^%s%I$N0lIt(B

BEGIN READ WRITE, START TRANSACTION READ WRITE
SET TRANSACTION READ WRITE, SET SESSION CHARACTERISTICS AS TRANSACTION READ WRITE
SET transaction_read_only = off

$BFsAj%3%_%C%H4XO"$N%3%^%s%I!#(BPREPARE TRANSACTION, COMMIT PREPARED, ROLLBACK PREPARED
LISTEN, UNLISTEN, NOTIFY
VACUUM
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$B%i!<%8%*%V%8%'%/%H$N@8@.(B

Primary/Standby$B$I$A$i$K$bAw$k$3$H$N$G$-$kLd$$9g$o$;!#(B $BIi2YJ,;6@_Dj$,M-8z$J$i$P!"(Bstandby$B%N!<%I$K$bAw?.$5$l$^$9!#(B $B$?$@$7!"%l%W%j%1!<%7%g%s$NCY1d>e8B(B(delay_threshold)$B$,@_Dj$5$l$F$$$F!"(B $B%l%W%j%1!<%7%g%s$NCY1d$,(Bdelay_threshold$B$r>e2s$C$F$$$k>l9g$OLd$$9g$o$;$O(BPrimary$B$KAw$i$l$^$9!#(B

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COPY TO
DECLARE, FETCH, CLOSE
SHOW

Primary/Standby$B$I$A$i$K$bAw$i$l$kLd$$9g$o$;(B

SET
DISCARD
DEALLOCATE ALL

$BL@<(E*$J%H%i%s%6%/%7%g%s$G$O!"0J2<$N$h$&$K$J$j$^$9!#(B

BEGIN$B$J$I$N%H%i%s%6%/%7%g%s3+;O%3%^%s%I$O!"(BPrimary$B%5!<%P$KAw$i$l$^$9!#(B
$BB3$/(BSELECT$B$J$I!"(BPrimary/Standby$B$I$A$i$K$bAw$k$3$H$N$G$-$kLd$$9g$o$;$O!"(BPrimary$B$N%H%i%s%6%/%7%g%sFb$G$=$N$^$^
INSERT$B$J$I!"(BStandby$B$KAw$k$3$H$N$G$-$J$$Ld$$9g$o$;$,8=$o$l$?>l9g$O!"(BPrimary$B%5!<%P$G$A$K;2>H$G$-$k$h$&$K$9$k$?$a$G$9!#(B $B$3$N>uBV$O!"%H%i%s%6%/%7%g%s$,JD$8$k$+!"%"%\!<%H$9$k$^$GB3$-$^$9!#(B

$BLd$$9g$o$;$,!"3HD%Ld$$9g$o$;%b!<%I$Gl9g$O!"Ld$$9g$o$;$N(Bparse$BCJ3,$G!"Ld$$9g$o$;$,Ii2YJ,;62DG=$+$I$&$+$GAw?.@h$,7h$^$j$^$9!#$=$N:]$NH=CG%k!<%k$O!"DL>o$N(BSQL$B$HF1$8$G$9!#(B $B$?$H$($PLd$$9g$o$;$,(BINSERT$B$J$i$P!"(BPrimary$B%5!<%P$G
[$BCm(B: SELECT$B$,Ii2YJ,;6$5$l$F(B Standby $B%N!<%I$G(B parse$B$,l9g$O!"$=$N(BSELECT$B$O(BPrimary$B%N!<%I$G
$B:G8e$K!"(Bpgpool-II$B$N%Q!<%5$,9=J8%(%i!<$HH=CG$7$?Ld$$9g$o$;$O(BPrimary$B%N!<%I$@$1$KAw$i$l$^$9!#(B

Streaming Replication$B$G$N%*%s%i%$%s%j%+%P%j(B

Streaming replication$B$rMxMQ$7$?%^%9%?%9%l!<%V%b!<%I$G$O!"%l%W%j%1!<%7%g%s%b!<%I$HF1$8$h$&$K%*%s%i%$%s%j%+%P%j$,MxMQ$G$-$^$9!#(B primary$B%5!<%P$r%^%9%?$H$7!"(Bstandby$B%5!<%P$r%j%+%P%j$7$^$9!#(B primary$B%5!<%P$,F0:n$7$F$$$k$N$,$3$NJ}K!$NA0Ds>r7o$G$9$N$G!"(B primary$B%5!<%P$,Dd;_$7$F$$$k>uBV$G$O%*%s%i%$%s%j%+%P%j$O$G$-$^$;$s!#(B primary$B%5!<%,Dd;_$7$F$$$k>uBV$+$i$NI|5l$O!"$9$Y$F$N(BDB$B%N!<%I$H(Bpgpool-II$B$rDd;_$5$;$F

$B%j%+%P%j=hM}$ro!"(Bpostgres$B%f!<%6$H$J$j$^$9!#(B
recovery_user = 'postgres'

recovery_password $B$r@_Dj$7$^$9!#$3$l$O!"(Brecovery_user $B$,(BDB$B$K%m%0%$%s$9$k$H$-$K;H$&%Q%9%o!<%I$G$9!#(B
recovery_password = 't-ishii'

recovery_1st_stage_command $B$r@_Dj$7$^$9!#(B $B$3$3$G;XDj$9$k%U%!%$%k$O!"(Bprimary$B%5!<%P$+$i%Y!<%9%P%C%/%"%C%W$r\:Y$O!"(Brecovery_1st_stage_command$B$N@_Dj9`L\$r$4Mw$/$@$5$$!#(B $B$3$N%9%/%j%W%H%U%!%$%k$O!"(Bprimary$B$N%G!<%?%Y!<%9%/%i%9%?2<$KG[CV$7!"$l0lBf9=@.$N>l9g$N%9%/%j%W%H(B(basebackup.sh)$B$r<($7$^$9!#(B $B$3$N%9%/%j%W%H$G$O!"(Brecovery_user $B$,%Q%9%o!<%I$J$7$G%j%+%P%jBP>]$N(Bstandby$B%N!<%I$K%m%0%$%s$G$-$k$3$H$rA0Ds$K$7$F$$$k$N$G!"$"$i$+$8$a(Bssh$B$N@_Dj$r9T$J$C$F$*$/I,MW$,$"$j$^$9!#(B
recovery_1st_stage_command = 'basebackup.sh'

recovery_2nd_stage_command $B$O!"6u$N$^$^$G9=$$$^$;$s!#(B
recovery_2nd_stage_command = ''

$B%*%s%i%$%s%j%+%P%j$r
# cd pgpool-II-x.x.x/sql/pgpool-recovery # make # make install # psql -f pgpool-recovery.sql template1

$B%*%s%i%$%s%j%+%P%j$,=*N;$7$?$"$H!"(Bpgpool-II$B$O!"Dd;_$7$F$$$?(BDB$B%N!<%I$N(BPostgreSQL$B$r5/F0$7$^$9!#(B $B$=$N$?$a$N%9%/%j%W%H$r!"3F(BDB$B%N!<%I$N(BDB$B%/%i%9%?$K%$%s%9%H!<%k$7$^$9!#(B $B%9%/%j%W%H$N%5%s%W%k(B$B$,%=!<%9%3!<%I$N(B"sample"$B%G%#%l%/%H%j$K4^$^$l$F$$$k$N$G!"$=$l$rMxMQ$7$F$/$@$5$$!#(B $B$3$N%5%s%W%k$NCf$G$O!"(BPostgreSQL$B$N5/F0$r(Bpg_ctl$B%3%^%s%I$G9T$C$F$*$j!"(Bpg_ctl$B%3%^%s%I$X$N%Q%9$,5-=R$5$l$F$$$^$9!#(B $B%G%U%)%k%H$G$O(B/usr/local/pgsql/bin/pg_ctl$B$H$J$C$F$$$k$N$G!"$*;H$$$N4D6-$K9g$o$;$F=$@5$7$F$/$@$5$$!#(B $B$J$*!"$3$N%9%/%j%W%H$O(Bssh$B$r;HMQ$7$^$9$N$G!">/$/$H$b!"(Bprimary$B$N(BDB$B%N!<%I$+$i!"(Bstandby$B$N(BDB$B%N!<%I$KBP$7$F!"(Brecovery_user$B$G%Q%9%o!<%I$J$7$G(Bssh$B$,MxMQ$G$-$k$3$H$,I,MW$G$9!#(B $BI,MW$J$i$P$"$i$+$8$a@_Dj$7$F$*$$$F$/$@$5$$!#(B

$B0J>e$G%*%s%i%$%s%j%+%P%j$N@_Dj$,=*N;$7$^$7$?!#(B standby$B%N!<%I$rDd;_$7$?>uBV$G!"(Bpcp_recovery_node$B$rMxMQ$9$k$+!"(BpgpoolAdmin$B$N!V%j%+%P%j!W%\%?%s$G%*%s%i%$%s%j%+%P%j$,=PMh$k$h$&$K$J$C$?$O$:$G$9!#(B $B$&$^$/$$$+$J$$>l9g$O!"(Bpgpool-II$B$N%m%0!"(Bprimary$B%5!<%P!"(Bstandby$B%5!<%P$N%m%0$r3NG'$7$F$/$@$5$$!#(B

$B;29M$^$G$K!"%9%H%j!<%_%s%0%l%W%j%1!<%7%g%s$G$N%*%s%i%$%s%j%+%P%j$NFbIt=hM}$NN.$l$r@bL@$7$^$9!#(B

pgpool-II$B$O!"(Bprimary$B%5!<%P$K%f!<%6(B: recovery_user, $B%Q%9%o!<%I(B: recovery_password $B$G(Btemplate1$B%G!<%?%Y!<%9$K@\B3$7$^$9(B
primary$B%5!<%P$G!"(Bpgpool_recovery$B4X?t$rpgpool_recovery$B4X?t$O!"(Brecovery_1st_stage_command $B$G;XDj$5$l$?%9%/%j%W%H$rprimary$B%5!<%P$G!"(Bpgpool_remote_start$B4X?t$rA0$N%9%/%j%W%H$r5/F0$7!"$3$3$+$i(Bssh$B7PM3$G%j%+%P%jBP>]$N(Bstandby$B%5!<%P$N(BPostgreSQL$B$r(Bpg_ctl$B%3%^%s%I$r;H$C$F5/F0$7$^$9!#(B $B5/F0$O%P%C%/%0%i%&%s%I$G9T$o$l!"5/F0$G$-$?$+$I$&$+$Opgpool-II$B$+$i!"(Bstandby$B%5!<%P$N(BPostgreSQL$B$N(Bpostgres$B%G!<%?%Y!<%9(B(postgres$B%G!<%?%Y!<%9$,$J$$>l9g$O(Btemplate1$B%G!<%?%Y!<%9(B)$B$K!"%f!<%6(B: recovery_user, $B%Q%9%o!<%I(B: recovery_password $B$G(Btemplate1$B%G!<%?%Y!<%9$K@\B3$r;n$_$^$9!#(B $B%j%H%i%$$O!"(Brecovery_timeout$BIC4V9T$o$l$^$9!#(B PostgreSQL$B$N5/F0$K@.8y$7$?$i!"failback_command$B$,6u$G$J$$>l9g$O!"(Bpgpool-II$B$N?F%W%m%;%9$O;XDj$5$l$?%9%/%j%W%H$r5/F0$7$^$9!#(B
failback_command$B$,=*N;$7$?$i!"(Bpgpool-II$B$N;R%W%m%;%9$r$9$Y$F:F5/F0$7$^$9!#(B

$B%Q%i%l%k%b!<%I(B

$B%Q%i%l%k%/%(%j5!G=$,MxMQ$G$-$k%b!<%I$G$9!#%F!<%V%k$rJ,3d$5$;!"3F%N!<%I$K%G!<%?(B $B$r;}$?$;$k$3$H$,$G$-$^$9!#$^$?%l%W%j%1!<%7%g%s$dIi2YJ,;65!G=$bF1;~$K;H$&$3$H$,(B $B$G$-$^$9!#(B $B%Q%i%l%k%b!<%I$G$O!"(Bpgpool.conf$B$N(Breplication_mode$B$^$?$O(Bloadbalance_mode$B$K(Btrue $B$r@_Dj$7!"(Bmaster_slave $B$r(Bfalse$B$K$7!"(Bparallel_mode $B$r(Btrue$B$K$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

$B%7%9%F%`(BDB$B$N@_Dj(B

$B%Q%i%l%k%b!<%I$rMxMQ$9$k$?$a$K$O!"%7%9%F%`(BDB$B$r@_Dj$9$kI,MW$,$"$j$^$9!#(B $B%7%9%F%`(BDB$B$O%G!<%?$r3F(BPostgreSQL$B%5!<%P$GJ,3d$9$k$?$a$N%k!<%k$r(B PostgreSQL$B$N%F!<%V%k$N7A$GJ];}$7$^$9!#%7%9%F%`(BDB$B$O(Bpgpool$B$,F0:n$9$k%[%9%H(B $B$HF1$8%[%9%H$KCV$/I,MW$O$"$j$^$;$s!#%7%9%F%`(BDB$B$N@_Dj$O(Bpgpool.conf$B$G9T$$(B $B$^$9!#(B

system_db_hostname

$B%7%9%F%`(BDB$B$,F0$$$F$$$k%[%9%HL>$G$9!#6uJ8;z$r;XDj$9$k$H!"(BUNIX$B%I%a%$%s%=%1%C(B $B%H$G@\B3$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

system_db_port

$B%7%9%F%`(BDB$B$N%]!<%HHV9f$G$9!#$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

system_dbname

$B%7%9%F%`(BDB$B$O@lMQ$N%G!<%?%Y!<%9$K@_CV$7$^$9!#$=$N%G!<%?%Y!<%9L>$r;XDj$7$^$9!#(B $B$3$N%G!<%?%Y!<%9$O$"$i$+$8$aB8:_$7$J$1$l$P$J$j$^$;$s!#$3$3$G$O!"(B "pgpool"$B$H$$$&%G!<%?%Y!<%9L>$K$9$k$b$N$H$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

system_db_schema

$B%7%9%F%`(BDB$B$O@lMQ$N%9%-!<%^$K@_CV$7$^$9!#$=$N%9%-!<%^L>$r;XDj$7$^$9!#(B $B$3$N%9%-!<%^$O$"$i$+$8$aB8:_$7$J$1$l$P$J$j$^$;$s!#$3$3$G$O!"(B "pgpool_catalog"$B$H$$$&%9%-!<%^$K$9$k$b$N$H$7$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

system_db_user

$B%7%9%F%`(BDB$B$K@\B3$9$k$H$-$N%f!<%6L>$G$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

system_db_password

$B%7%9%F%`(BDB$B$K@\B3$9$k$H$-$N%Q%9%o!<%I$G$9!#%Q%9%o!<%I$r@_Dj$7$F$$$J$$>l9g(B $B$O6uJ8;z$K$7$F$*$-$^$9!#(B $B$3$N%Q%i%a!<%?$rJQ99$7$?;~$K$O(B pgpool-II $B$r:F5/F0$7$F$/$@$5$$!#(B

$B%7%9%F%`(BDB$B$N=i4|@_Dj(B

$B%7%9%F%`(BDB$B$K%9%-!<%^$H%F!<%V%k$r:n@.$7$^$9!#=i4|@_DjMQ$N%9%/%j%W%H$,(B $prefix/share/system_db.sql$B$K$"$k$N$G$=$l$rMxMQ$7$^$9!#$?$@$7!"$3$N%9%/(B $B%j%W%H$G$O%9%-!<%^L>$,(B"pgpool_catalog"$B$H$J$C$F$$$k$N$G!"0c$&%9%-!<%^$r;H(B $B$&>l9g$OE,Ev$K=q$-49$($F$/$@$5$$!#$^$?!"%G!<%?%Y!<%9L>$H$7$F(B"pgpool"$B0J30(B $B$r;H$&>l9g$O0J2<$rE,Ev$KFI$_BX$($F$/$@$5$$!#(B
psql -f $prefix/share/system_db.sql pgpool

dblink$B$N%$%s%9%H!<%k(B

$B%Q%i%l%k%b!<%I$G$O(Bdblink$B$r;H$$$^$9!#(Bdblink$B$O(BPostgreSQL$B%=!<%9%U%!%$%k(B ($POSTGRES_SRC)

$(POSTGRES_SRC)/contrib/dblink

$B$K$"$j$^$9!#(B$POSTGRES_SRC/contrib/dblink/README.dblink$B$r;29M$K%7%9%F%`(B DB$B$K(Bdblink$B$r%$%s%9%H!<%k$7$F$/$@$5$$!#(B $B$^$?!"(Bpgpool$B%G!<%?%Y!<%9$K4X?t$NEPO?$,I,MW$G$9!#(B

psql pgpool < $POSTGRES_SRC/contrib/dblink/dblink.sql

$B%3%M%/%7%g%s?t$N@_Dj(B

$B%Q%i%l%k%b!<%I$G$O!"%/%(%j$K$h$j%7%9%F%`(BDB$B$+$i(Bdblink$B7PM3$G(Bpgpool$B$K@\B3(B $B$9$k$N$G!"A[Dj$5$l$kF1;~@\B3?t0J>e$N%3%M%/%7%g%s$,I,MW$K$J$k>l9g$,$"$j(B $B$^$9!#$=$N$?$a!"(Bpgpool.conf$B$N(Bnum_init_children$B$K$OF1;~@\B3?t$h$j==J,Bg(B $B$-$$CM$r@_Dj$7$F2<$5$$!#(B

$BL\0B$H$7$F0J2<$N<0$G(Bnum_init_children$B$r@_Dj$7$F$/$@$5$$!#(B

num_init_children = $BA[Dj$5$l$kF1;~@\B3?t(B * ( 1 + $B%/%(%j$NCf$G;H$o$l$F$$$k%F!<%V%k$N:GBg?t(B)

$B%G!<%?J,3d%k!<%k$NEPO?(B

$B%G!<%?J,3d$r9T$&%F!<%V%k$KBP$7$F$O!"%F!<%V%k>pJs$r$"$i$+$8$a(B pgpool_catalog.dist_def $B$H$$$&%F!<%V%k$KEPO?$7$F$*$-$^$9!#(B

CREATE TABLE pgpool_catalog.dist_def( dbname TEXT, -- DB$BL>(B schema_name TEXT, --schema$BL>(B table_name TEXT, -- $B%F!<%V%kL>(B col_name TEXT NOT NULL CHECK (col_name = ANY (col_list)), -- $BJ,;6%-!(B col_list TEXT[] NOT NULL, -- table$B$NB0@-L>(B type_list TEXT[] NOT NULL, -- $BB0@-$N%?%$%WL>(B dist_def_func TEXT NOT NULL, -- $BJ,;6@h$N(BDB$B%N!<%I$r7hDj$9$k4X?tL>(B PRIMARY KEY (dbname,schema_name,table_name) );

$B%l%W%j%1!<%7%g%s%F!<%V%k$N%k!<%kEPO?(B

$B0l$D$N(BSQL$BJ8$K(BJOIN$BEy$G%G!<%?J,3d%k!<%k$KEPO?$7$?%F!<%V%k$H6&$K(B $B%l%W%j%1!<%7%g%s$r9T$&%F!<%V%k$r;XDj$9$k>l9g$K$O!"%l%W%j%1!<%7%g%s(B $B$r9T$&%F!<%V%k$N>pJs$r$"$i$+$8$a!"(Bpgpool_catalog.replicate_def $B$H$$$&%F!<%V%k$KEPO?$7$F$*$-$^$9!#(B

CREATE TABLE pgpool_catalog.replicate_def( dbname TEXT, -- DB$BL>(B schema_name TEXT, --schema$BL>(B table_name TEXT, -- $B%F!<%V%kL>(B col_list TEXT[] NOT NULL, -- table$B$NB0@-L>(B type_list TEXT[] NOT NULL, -- $BB0@-$N%?%$%WL>(B PRIMARY KEY (dbname,schema_name,table_name) );

pgbench$B$N%F!<%V%k$rJ,3d$9$k%k!<%k$NNc$r<($7$^$9!#(B

$B$3$NNc$G$O!"(Baccounts$B%F!<%V%k$KBP$7$F$OJ,3d$r9T$$!"(Bbranches$B%F!<%V%k(B $B$H(Btellers$B%F!<%V%k$KBP$7$F$O%l%W%j%1!<%7%g%s$r9T$&$3$H$K$7$^$9!#(B $B$^$?!"(Baccounts$B%F!<%V%k$H(Bbanches$B%F!<%V%k$O(Bbid$B$G7k9g$5$l$k$3$H$rA[Dj$7(B branches$B%F!<%V%k$O%l%W%j%1!<%7%g%s%F!<%V%k$N%k!<%kEPO?$r9T$$$^$9!#(B $B$b$7!"(Baccounts$B%F!<%V%k!"(Bbranches$B%F!<%V%k$H(Btellers$B%F!<%V%k$N#3$D$N(B $B%F!<%V%k$N7k9g$,9T$o$l$k>l9g$K$O!"$"$i$+$8$a(Btellers$B%F!<%V%k$KBP$7$F$b(B $B%l%W%j%1!<%7%g%s%F!<%V%k$N%k!<%kEPO?$r9T$&I,MW$,$"$j$^$9!#!!(B

INSERT INTO pgpool_catalog.dist_def VALUES ( 'pgpool', 'public', 'accounts', 'aid', ARRAY['aid','bid','abalance','filler'], ARRAY['integer','integer','integer','character(84)'], 'pgpool_catalog.dist_def_accounts' ); INSERT INTO pgpool_catalog.replicate_def VALUES ( 'pgpool', 'public', 'branches', ARRAY['bid','bbalance','filler'], ARRAY['integer','integer','character(84)'] );

$B$3$3$G!"(Bpgpool_catalog.dist_def_accounts$B$O!"0z?t$H$7$FJ,3d%-!<$NCM$r
CREATE OR REPLACE FUNCTION pgpool_catalog.dist_def_accounts (val ANYELEMENT) RETURNS INTEGER AS ' SELECT CASE WHEN $1 >= 1 and $1 <= 30000 THEN 0 WHEN $1 > 30000 and $1 <= 60000 THEN 1 ELSE 2 END' LANGUAGE SQL;

$B%/%i%$%"%s%HG'>Z(B(HBA)$B$N$?$a$N(B pool_hba.conf $B@_DjJ}K!(B

PostgreSQL$B$N(Bpg_hba.conf$B$HF1$8$h$&$K(Bpgpool$B$G$b(Bpool_hba.conf$B%U%!%$(B $B%k$r;H$C$?%/%i%$%"%s%HG'>Z$,%5%]!<%H$5$l$F$$$^$9!#(B

pgpool$B$r%$%s%9%H!<%k$9$k$H%G%U%)%k%H%$%s%9%H!<%k@h$N@_Dj%U%!%$%k%G%#(B $B%l%/%H%j(B"/usr/local/etc"$B$K(Bpool_hba.conf.sample$B$,0l=o$K%$%s%9%H!<%k(B $B$5$l$^$9!#$3$N(Bpool_hba.conf.sample$B%U%!%$%k$r(Bpool_hba.conf$B$H$7$F%3%T!<(B $B$7!"I,MW$G$"$l$PJT=8$7$F$/$@$5$$!#%G%U%)%k%H$G$O(Bpool_hba$B$K$h$kG'>Z$OM-(B $B8z$K$J$C$F$$$^$9!#(B

pool_hba.conf$B$N%U%)!<%^%C%H$O(Bpg_hba.conf$B$N$b$N$H$[$H$s$IF1$8$G$9!#(B

local DATABASE USER METHOD [OPTION] host DATABASE USER CIDR-ADDRESS METHOD [OPTION]

$B3F%U%#!<%k%I$G@_Dj$G$-$kCM$N>\:Y$O(B"pool_hba.conf.sample"$B$r;2>H$7$F(B $B$/$@$5$$!#(B

$B0J2<$O(Bpool_hba$B$N@)8B;v9`$G$9!#(B

"hostssl"$B@\B3%?%$%W$O%5%]!<%H$5$l$^$;$s(B

pool_hba.conf$B$K(B"hostssl"$B$O;XDj$9$k$3$H$O$G$-$^$;$s$,!"(Bpgpool-II$B$O(B2.3$B0J9_$G(BSSL$B$r%5%]!<%H$7$F$$$^$9!#(B $B>\:Y$O(BSSL$B$r;2>H$7$F$/$@$5$$!#(B

DATABASE$B%U%#!<%k%ICM$H$7$F(B"samegroup"$B$O%5%]!<%H$5$l$^$;$s(B

pgpool$B$O%P%C%/%(%s%I%5!<%P$K$"$k%f!<%6>pJs$r;vA0$KCN$k;v$,$G$-$J(B $B$$$?$a!"%G!<%?%Y!<%9L>$O(Bpool_hba.conf$B$K$"$kCM$N$_$HHf3S$5$l$^$9!#(B $B$J$N$G%0%k!<%W$K4X$9$kG'>Z$O(Bpool_hba$B$G9T$&$3$H$,$G$-$^$;$s!#(B

USER$B%U%#!<%k%ICM$H$7$F(B"+"$B$r;H$C$?%0%k!<%W;XDj$O%5%]!<%H$5$l$^$;$s(B

$B>e5-$N(B"samegroup"$B$HF1$8M}M3$G!"%f!<%6L>$O(Bpool_hba.conf$B$K$"$kCM$N(B $B$_$HHf3S$5$l$^$9!#%0%k!<%W$K4X$9$kG'>Z$O(Bpool_hba$B$G9T$&$3$H$O$G$-(B $B$^$;$s!#(B

IPv6$B%"%I%l%9(B/$B%^%9%/I=5-K!$O%5%]!<%H$5$l$^$;$s(B

$B8=:_(Bpgpool$B$O(BIPv6$B$r%5%]!<%H$7$F$$$^$;$s!#(B

"trust", "reject", "pam", "md5"$B0J30$N%a%=%C%I$O%5%]!<%H$5$l$^$;$s(B

$B$3$l$b>e5-$N(B"samegroup"$B$HF1$8M}M3$K$h$k$b$N$G$9!#(Bpgpool$B$O%P%C%/%((B $B%s%I$N%f!<%6(B/$B%Q%9%o!<%I>pJs$r;}$C$F$$$J$$$N$G!"%P%C%/%(%s%I$KJ]B8(B $B$5$l$F$$$k%Q%9%o!<%I$r;H$C$?G'>Z$r9T$&$3$H$,$G$-$^$;$s!#(B

md5$B$K4X$7$F$O!"(Bpool_passwd$B$H$$$&%Q%9%o!<%I%U%!%$%k$rJ;MQ$9$k$3$H$K$h$C$FMxMQ$G$-$^$9!#(B $B>\:Y$O(B$BG'>Z!&%"%/%;%9@)8fJ}<0(B$B$r;2>H$7$F$/$@$5$$!#(B

$B$3$3$G@bL@$5$l$?5!G=!"@)8B$O%/%i%$%"%s%H$H(Bpgpool$B4V$G9T$o$l$k%/%i%$(B $B%"%s%HG'>Z$K$D$$$F$@$H$$$&$3$H$KCm0U$7$F$/$@$5$$!#%/%i%$%s%"%s%H$O(B pgpool$B$N%/%i%$%"%s%HG'>Z$K@.8y$7$?$H$7$F$b!"(BPostgreSQL$B$K$h$k%/%i%$(B $B%"%s%HG'>Z$K@.8y$7$J$$$H@\B3>uBV$H$J$j$^$;$s!#(Bpool_hba$B$K$H$C$F$O%/(B $B%i%$%"%s%H$K;XDj$5$l$?%f!<%6L>$d%G!<%?%Y!<%9L>(B ($BNc(B. psql -U testuser testdb)$B$,e$KB8:_$9$k$+$I$&(B $B$+$OLdBj$G$O$"$j$^$;$s!#$=$l$,(Bpool_hba.conf$B$NCM$H%^%C%A$9$k$+$I$&$+(B $B$G%A%'%C%/$,9T$o$l$^$9!#(B

pgpool$B$,2TF/$9$k%[%9%H>e$N%f!<%6>pJs$r;H$C$?(BPAM$BG'>Z$rMxMQ$9$k$3$H$,(B $B$G$-$^$9!#(Bpgpool$B$r(BPAM$B%5%]!<%HIU$-$G%S%k%I$9$k$K$O(Bconfigure$B%*%W%7%g(B $B%s$K(B"--with-pam"$B$r;XDj$7$F$/$@$5$$!#(B

./configure --with-pam

$BZ$rM-8z$K$9$k$K$O!"(Bpool_hba.conf$B$G(B"pam"$B%a%=%C%I$r@_Dj$9(B $B$k$N$K2C$(!"(Bpgpool$B$N%5!<%S%9@_Dj%U%!%$%k$r%7%9%F%`$N(BPAM$B@_Dj%G%#%l%/%H(B $B%j!JDL>o$O(B /etc/pam.d $B$K:n@.$9$kI,MW$,$"$j$^$9!#%5!<%S%9@_Dj%U%!%$(B $B%k$NNc$O%$%s%9%H!<%k%G%#%l%/%H%j$N(B"share/pgpool.pam"$B$r;29M$K$7$F$/(B $B$@$5$$!#(B

$B%/%(%j%-%c%C%7%e$N@_DjJ}K!(B

pgpool-II$B$G$O!"$9$Y$F$N%b!<%I$G%/%(%j%-%c%C%7%e$rMxMQ$9$k$3$H$,$G$-$^$9!#(B $B%/%(%j%-%c%C%7%e$O!"(BSELECT$B$N7k2L$r:FMxMQ$9$k$3$H$K$h$j!"@-G=$r8~>e$5$;$^$9!#(B $BMxMQ$9$k>l9g$K$O!"(Bpgpool.conf$B$N@_Dj$r0J2<$N$h$&$K@_Dj$7$^$9!#(B
enable_query_cache = true

$B$^$?!"%7%9%F%`(BDB$B$K0J2<$N%F!<%V%k$r:n@.$7$F$/$@$5$$!#(B

CREATE TABLE pgpool_catalog.query_cache ( hash TEXT, query TEXT, value bytea, dbname TEXT, create_time TIMESTAMP WITH TIME ZONE, PRIMARY KEY(hash, dbname) );

$B$?$@$7!"$3$NNc$G$O%9%-!<%^L>$,(B"pgpool_catalog"$B$H$J$C$F$$$k$N$G!"0c$&%9%-!<%^$r;H$&>l9g$OE,Ev$K=q$-49$($F$/$@$5$$!#(B

$BCm0U(B: $B8=:_$N%/%(%j%-%c%C%7%e$Ne$K:n@.$5$l$^$9!#(B $B$=$N$?$a!"e5-%F!<%V%k$+$i:o=|$9$k$+!"(B-c $B%*%W%7%g%s(B($B%/%(%j%-%c%C%7%e$N%/%j%"(B)$B$rDI2C$7$F(Bpgpool-II$B$r:F5/F0$9$kI,MW$,$"$j$^$9!#(B

pgpool-II$B$N5/F0$HDd;_(B

$B0J>e$G@_Dj$,=*$o$C$?$N$G!"3F(BDB$B%N!<%I$r5/F0$7!"I,MW$J$i$P%7%9%F%`(BDB$B$b5/F0(B $B$7$F$+$i(Bpgpool-II$B$r5/F0$7$^$9!#(B
pgpool [-c][-f config_file][-a hba_file][-F pcp_config_file][-n][-D][-d]

-c $B%/%(%j%-%c%C%7%e$r>C5n$7$^$9(B

-f config_file pgpool-II$B$N@_Dj%U%!%$%k$r;XDj$7$^$9(B

-a hba_file HBA$BG'>Z@_Dj%U%!%$%k$r;XDj$7$^$9(B

-F pcp_config_file pcp$B$N@_Dj%U%!%$%k$r;XDj$7$^$9(B

-n $B%G!<%b%s%b!<%I$G5/F0$7$^$;$s(B($B@)8fC

-D pgpool_status$B$r:o=|$7!"0JA0$N>uBV$rI|85$7$^$;$s(B

-d $B%G%P%C%0%b!<%I$G5/F0$7$^$9(B

pgpool-II$B$NDd;_$O8e=R$N(Bpcp$B%3%^%s%I$G$b$G$-$^$9$,!"(Bpgpool-II$B%3%^%s%I$r;H$&$3$H(B $B$b$G$-$^$9!#(B

pgpool [-f config_file][-F pcp_config_file] [-m {s[mart]|f[ast]|i[mmediate]}] stop

-m s[mart] $B@\B3Cf$N%/%i%$%"%s%H$,@\B3$r=*$o$k$N$rBT$C$F$+$iDd;_$7$^$9(B($B%G%U%)%k%H(B)

-m f[ast] $B@\B3Cf$N%/%i%$%"%s%H$,@\B3$r=*$o$k$N$rBT$?$:$KD>$A$KDd;_$7$^$9(B

-m i[mmediate] -m f$B$HF1$8F0:n$G$9(B

pgpool$B$,Dd;_$9$k$H!"(B[logdir]/pgpool_status$B$H$$$&%U%!%$%k$K%P%C%/%(%s%I$N>uBV$r=q$-9~$_$^$9!#(B $BuBV$r$=$3$+$iI|85$7$^$9!#(B $B$3$l$K$h$C$F!"(B

$B%P%C%/%(%s%I$,Dd;_$7$F%U%'%$%k%*!<%P(B
pgpool$B7PM3$G@5>o$J(BDB$B$r99?7(B
pgpool$B$rDd;_(B
$BDd;_$7$F$$$?(BDB$B$r:F5/F0(B
pgpool$B$r:F5/F0(B

$B$H$$$&%7!<%1%s%9$G!"IT@09g$N$"$k(BDB$B$+$i%l%W%j%1!<%7%g%s>uBV$K0\9T$9$k$3$H$rKI$0$3$H$,$G$-$^$9!#(B

$B$b$7$b(BDB$B$N>uBV$KIT@09g$,$J$/$J$C$F$$$k!"$"$k$$$O(Bpgpool.conf$B$r=q$-49$($F@_Dj$rJQ$($F$7$^$C$?!"$H$$$&$H$-$O(Bpgpool_status$B$r:o=|$9$l$P%P%C%/%(%s%I$N>uBV$NI|85$r9T$$$^$;$s!#(B

pgpool-II$B$N@_Dj%U%!%$%k$N:FFI$_9~$_(B

pgpool-II$B$N@_Dj%U%!%$%k$O!"(Bpgpool-II$B$r:F5/F0$9$k$3$H$J$/FI$_D>$9$3$H$,$G$-$^$9!#(B
pgpool [-f config_file][-a hba_file][-F pcp_config_file] reload

-f config_file pgpool-II$B$N@_Dj%U%!%$%k$r;XDj$7$^$9(B

-a hba_file HBA$BG'>Z@_Dj%U%!%$%k$r;XDj$7$^$9(B

-F pcp_config_file pcp$B$N@_Dj%U%!%$%k$r;XDj$7$^$9(B

$B@_Dj9`L\$K$h$C$F$O!":FFI$_9~$_$r9T$J$C$F$bH?1G$5$l$J$$$b$N$,$"$k$N$G!"$4Cm0U2<$5$$!#(B $B$^$?!"@_Dj$NJQ99$O$9$G$K@\B3Cf$N%;%C%7%g%s$K$OH?1G$5$l$^$;$s!#
SHOW$B%3%^%s%I(B

$B35MW(B

pgpool-II$B$G$O!"(BSHOW$B%3%^%s%I$r;H$C$F>pJs$r;2>H$9$k$3$H$,$G$-$^$9!#(B SHOW$B$O(BSQL$B%3%^%s%I$G$9$,!"(Bpgpool-II$B$O0lIt$N(BSHOW$B%3%^%s%I$rFH<+$K2rpJs$rJV5Q$7$^$9!#(B $B0J2<$N$h$&$J$b$N$,$"$j$^$9!#(B

pool_status $B9=@.>pJs(B

pool_nodes DB$B%N!<%I>pJs(B

pool_processes pgpool-II$B%W%m%;%9$NFbIt>pJs(B

pool_pools $B%3%M%/%7%g%s%W!<%k>pJs(B

pool_version pgpool-II$B$N%P!<%8%g%s(B

"pool_status" SQL $B$O0JA0$+$i$"$j$^$9$,!"B>$N(BSQL$B$O(Bpgpool-II 3.0$B$+$iDI2C$5$l$^$7$?!#(B

$BCm0U(B: "pool"$B$H$$$&MQ8l$O!"(Bpgpool$B%W%m%;%9$K$h$C$F=jM-$5$l$k(BPostgreSQL$B%;%C%7%g%s$r;X$7$^$9!#(B pgpool$B$K$h$C$F=jM-$5$l$k%;%C%7%g%sA4BN$G$O$"$j$^$;$s!#(B

pool_status

"SHOW pool_status" $B$O@_Dj%Q%i%a!<%?$NL>A0$HCM!"@bL@$rI=<($7$^$9!#=PNO$N0lIt$r<($7$^$9!#(B
benchs2=# show pool_status; item | value | description -------------------------------+---------------------------------+------------------------------------------------------------------ listen_addresses | 127.0.0.1 | host name(s) or IP address(es) to listen to port | 9999 | pgpool accepting port number socket_dir | /tmp | pgpool socket directory num_init_children | 5 | # of children initially pre-forked child_life_time | 300 | if idle for this seconds, child exits

pool_nodes

"SHOW pool_nodes"$B$O!"(BDB$B%N!<%I$N%j%9%H$rI=<($7$^$9!#(B $B%[%9%HL>!"%]!<%HHV9f!">uBV!"=E$_(B($B%m!<%I%P%i%s%9%b!<%I$G1?MQ$7$F$$$k$H$-$K$N$_0UL#$,$"$j$^$9(B)$B$,I=<($5$l$^$9!#(B $B>uBV(B(status)$B$N0UL#$K$D$$$F$O!"(Bpcp_node_info$B%j%U%!%l%s%9(B$B$G@bL@$5$l$F$$$^$9!#(B
benchs2=# show pool_nodes; id | hostname | port | status | lb_weight ------+-------------+------+--------+----------- 0 | 127.0.0.1 | 5432 | 2 | 0.5 1 | 192.168.1.7 | 5432 | 3 | 0.5 (2 lignes)

pool_processes

"SHOW pool_processes"$B$O!"@\B3BT$A!"$"$k$$$O@\B3Cf(Bpgpool-II$B$N;R%W%m%;%9$N>uBV$rI=<($7$^$9!#(B

6$B$D$N%+%i%`$,$"$j$^$9!#(B

pool_pid $B$O(Bpgpool-II$B%W%m%;%9$N%W%m%;%9(BID$B$G$9!#(B

start_time$B$O$3$N%W%m%;%9$,5/F0$5$l$?;~9o$G$9(B(1970$BG/(B1$B7n(B1$BF|$+$i$N7P2aIC$GI=<($5$l$^$9(B)$B!#(B

database$B$O$3$N%W%m%;%9$,@\B3$7$F$$$k%G!<%?%Y!<%9L>$G$9!#(B

username$B$O$3$N%W%m%;%9$N@\B3$G;HMQ$7$F$$$k%f!<%6L>$G$9!#(B

create_time is$B$O$3$N@\B3$,:n@.$5$l$?;~9o$G$9!#(B

pool_counter $B$O$3$N@\B3$,;HMQ$5$l$?2s?t$G$9!#(B

$BJV5Q9T?t$O>o$K(Bnum_init_children$B$K$J$j$^$9!#(B $B$^$?!"%G!<%?%Y!<%9L>$J$I$,I=<($5$l$k$N$O!"$=$N%W%m%;%9$K%U%m%s%H%(%s%I$+$i$N@\B3$,$"$k>l9g$K8B$j$^$9!#(B

benchs2=# show pool_processes; pool_pid | start_time | database | username | create_time | pool_counter ----------+---------------------+----------+-----------+---------------------+-------------- 8465 | 2010-08-14 08:35:40 | | | | 8466 | 2010-08-14 08:35:40 | benchs | guillaume | 2010-08-14 08:35:43 | 1 8467 | 2010-08-14 08:35:40 | | | | 8468 | 2010-08-14 08:35:40 | | | | 8469 | 2010-08-14 08:35:40 | | | | (5 lines)

pool_pools

"SHOW pool_pools"$B$O!"(Bpgpool-II$B$N%3%M%/%7%g%s%W!<%k$N>uBV$rI=<($7$^$9!#(B

11$B$N%+%i%`$,$"$j$^$9!#(B

start_time$B$O$3$N%W%m%;%9$,5/F0$5$l$?;~9o$G$9(B(1970$BG/(B1$B7n(B1$BF|$+$i$N7P2aIC$GI=<($5$l$^$9(B)$B!#(B

pool_pid $B$O(Bpgpool-II$B%W%m%;%9$N%W%m%;%9(BID$B$G$9!#(B

pool_id $B$O%3%M%/%7%g%s%W!<%k(BID$B$G$9!#(B(0$B$+$i(Bmax_pool-1$B$NCM$G$9(B)

backend_id $B$O(BPostgreSQL$B%P%C%/%(%s%I$N<1JL;R$G$9(B(0$B$+$i%P%C%/%(%s%I?t(B-1$B$NCM$G$9(B)

database$B$O$3$N%W%m%;%9$,@\B3$7$F$$$k%G!<%?%Y!<%9L>$G$9!#(B

username$B$O$3$N%W%m%;%9$N@\B3$G;HMQ$7$F$$$k%f!<%6L>$G$9!#(B

create_time is$B$O$3$N@\B3$,:n@.$5$l$?;~9o$G$9!#(B

majorversion $B$H(B minorversion $B$O$3$N@\B3$G;HMQ$5$l$F$$$k%W%m%H%3%k%P!<%8%g%sHV9f$G$9!#(B

pool_counter $B$O$3$N@\B3$,;HMQ$5$l$?2s?t$G$9!#(B

pool_backendpid $B$O(B PostgreSQL $B$N%P%C%/%(%s%I%W%m%;%9$N%W%m%;%9(BID$B$G$9!#(B

pool_connected $B$O??56CM$G!"(B0$B$J$i%U%m%s%H%(%s%I$+$i$N@\B3L5$7!"(B1$B$J$i@\B3$"$j$rI=$7$^$9!#(B

$BJV5Q9T?t$O>o$K(Bnum_init_childr
benchs2=# show pool_pools; pool_pid | start_time ----------+---------------------+-- 8465 | 2010-08-14 08:35:40 | 0 8465 | 2010-08-14 08:35:40 | 1 8465 | 2010-08-14 08:35:40 | 2 8465 | 2010-08-14 08:35:40 | 3 8466 | 2010-08-14 08:35:40 | 0 8466 | 2010-08-14 08:35:40 | 1 8466 | 2010-08-14 08:35:40 | 2 8466 | 2010-08-14 08:35:40 | 3 8467 | 2010-08-14 08:35:40 | 0 8467 | 2010-08-14 08:35:40 | 1 8467 | 2010-08-14 08:35:40 | 2 8467 | 2010-08-14 08:35:40 | 3 8468 | 2010-08-14 08:35:40 | 0 8468 | 2010-08-14 08:35:40 | 1 8468 | 2010-08-14 08:35:40 | 2 8468 | 2010-08-14 08:35:40 | 3 8469 | 2010-08-14 08:35:40 | 0 8469 | 2010-08-14 08:35:40 | 1 8469 | 2010-08-14 08:35:40 | 2 8469 | 2010-08-14 08:35:40 | 3 (20 lines)
en*max_pool$B$K$J$j$^$9!#(B | pool_id | backend_id | database | username | create_time | majorversion | minorversion | pool_counter | pool_backendpid | pool_connected -------+------------+----------+-----------+---------------------+--------------+--------------+--------------+-----------------+---------------- | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | benchs | guillaume | 2010-08-14 08:35:43 | 3 | 0 | 1 | 8473 | 1 | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | | | 0 | | | | | | | |

pool_version

"SHOW pool_version" $B$O(Bpgpool-II$B$N%P!<%8%g%s>pJs$rI=<($7$^$9!#(B $BNc$r<($7$^$9!#(B
benchs2=# show pool_version; pool_version ------------------------ 3.0-dev (umiyameboshi) (1 line)

$B%*%s%i%$%s%j%+%P%j(B

$B%*%s%i%$%s%j%+%P%j35MW(B

$B$3$N>O$G$O!"%l%W%j%1!<%7%g%s%b!<%I$GMxMQ$9$k>l9g$N%*%s%i%$%s%j%+%P%j5!G=(B $B$K$D$$$F@bL@$7$^$9!#(B $B%^%9%?!?%9%l!<%V%b!<%I(B(Streaming Replication)$B$G$N%*%s%i%$%s%j%+%P%j$NMx(B $BMQJ}K!$K$D$$$F$O!"(BStreaming Replication$B$X$NBP1~(B $B$r$4Mw2<$5$$!#(B $B%l%W%j%1!<%7%g%s%b!<%I$G(B pgpool $B$,F0:n$7$F$$$k>l9g!"%@%&%s$7$?%N!<(B $B%I$N%G!<%?$r:FF14|$5$;$?>e$G!"%N!<%I$rI|5"$5$;$k$3$H$,$G$-$^$9!#$3(B $B$N5!G=$r!V%*%s%i%$%s%j%+%P%j!W$H8F$S$^$9!#(B

$B%*%s%i%$%s%j%+%P%j$rl9g$K(B $B$O(B pgpool.conf $B$N(B backend_hostname$B$J$I$N%Q%i%a!<%?$rDI2C$7$F$*$-!"@_Dj%U%!%$%k(B $B$r:FFI$_9~$_$5$;$k$H!"%N!<%I$,@Z$jN%$5$l$?>uBV$G(B pgpool $B$K%N!<%I>pJs$,EPO?$5$l$^$9!#(B

$B$^$?!"%j%+%P%j$9$k%N!<%I$N(B PostgreSQL $B$,$9$G$KF0:nCf$G$"$l$P!"$"$i(B $B$+$8$a(B PostgreSQL $B$r%7%c%C%H%@%&%s$5$;$F$*$$$F$/$@$5$$!#(B

pgpool $B$G$O%*%s%i%$%s%j%+%P%j$r(B 2 $BCJ3,$KJ,$1$F
CHECKPOINT $B $B%U%!!<%9%H%9%F!<%8$N $B@\B3$,$9$Y$F@ZCG$5$l$k$^$GBT5!(B
CHECKPOINT $B $B%;%+%s%I%9%F!<%8$N postmaster $B$N5/F0(B(pgpool_remote_start $B$N $B%N!<%I$NI|5"(B

$B%G!<%?F14|$NBh0lCJ3,$r!V%U%!!<%9%H%9%F!<%8!W$H8F$S$^$9!#%U%!!<%9%H(B $B%9%F!<%8Cf$K(B1 $B2sL\$N%G!<%?F14|$r9T$$$^$9!#%U%!!<%9%H%9%F!<%8Cf$O%G!<(B $B%?$N99?7$d;2>H$rJB9T$7$F9T$&$3$H$,$G$-$^$9!#(B

$B%U%!!<%9%H%9%F!<%8$G=hM}$9$kFbMF$O%f!<%6$,Dj5A$9$k$3$H$,$G$-$^$9!#(B $B%9%/%j%W%H$G$O(B 3 $B$D$N0z?t$r
$B%^%9%?$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B
$B%j%+%P%j%N!<%I$N%[%9%HL>(B
$B%j%+%P%j%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

$Bl9g(B $B$K$O!"$=$N@\B3$r$9$Y$F%V%m%C%/$7$^$9!#(B

$B%;%+%s%I%9%F!<%8$G=hM}$9$kFbMF$O%f!<%6$,Dj5A$9$k$3$H$,$G$-$^$9!#(B $B%9%/%j%W%H$G$O(B 3 $B$D$N0z?t$r

$B%^%9%?$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B
$B%j%+%P%j%N!<%I$N%[%9%HL>(B
$B%j%+%P%j%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

$B$9$Y$F$N@\B3$,=*N;$5$l$k$H!"%U%!!<%9%H%9%F!<%80J9_$K99?7$5$l$?%G!<(B $B%?$rF14|$9$k$?$a$N%;%+%s%I%9%F!<%8$,3+;O$5$l$^$9!#$=$3$G:G=*E*$J%G!<(B $B%?$NF14|$r9T$$$^$9!#$3$N4V$O%/%i%$%"%s%H$+$i$O(B pgpool $B$X$N@\B3$,BT(B $B$?$5$l$k>uBV$K$J$j$^$9!#(B

$B$J$*!"%*%s%i%$%s%j%+%P%j$N@)8B;v9`$H$7$F!"J#?t$N%[%9%H$K(B pgpool $B$r(B $BG[CV$7$F%l%W%j%1!<%7%g%s$5$;$F$$$k>l9g$K$O!"%*%s%i%$%s%j%+%P%j$O@5(B $B$7$/F0:n$7$^$;$s!#$I$l$+$N(B pgpool $B$K%j%+%P%j%j%/%(%9%H$r=P$7$?;~$K!"(B $BB>$N(B pgpool $B$+$i99?7$,EAHB$9$k$H!"%G!<%?$rF14|$5$;$k$3$H$,$G$-$J$/(B $B$J$j$^$9!#(B

pgpool $B$N@_Dj(B

$B%*%s%i%$%s%j%+%P%j$r@_Dj$9$k$?$a$K$O!"(Bpgpool.conf $B$N0J2<$NCM$r@_Dj(B $B$7$F$/$@$5$$!#(B

backend_data_directory
recovery_user
recovery_password
recovery_1st_stage_command
recovery_2nd_stage_command

C $B8@8l4X?t$N%$%s%9%H!<%k(B

$B
pgpool-II-x.x.x/sql/pgpool-recovery/

$B$K$"$j$^$9!#%G%#%l%/%H%j$r0\F0$7!"(Bmake install $B$7$F$/$@$5$$!#(B

% cd pgpool-II-x.x.x/sql/pgpool-recovery/ % make install

C $B8@8l4X?t$N%b%8%e!<%k$r%$%s%9%H!<%k$7$?$i!"B3$$$F(B C $B8@8l4X?t$r8F$S$@(B $B$9$?$a$N(B SQL $B$r%$%s%9%H!<%k$7$^$9!#(B

% cd pgpool-II-x.x.x/sql/pgpool-recovery/ % psql -f pgpool-recovery.sql template1

$B%j%+%P%j%9%/%j%W%H$NG[CV(B

$B%G!<%?$rF14|$5$;$k$?$a$N%9%/%j%W%H$H!"%j%b!<%H$+$i(B postmaster $B$r:F5/F0(B $B$5$;$k$?$a$N%9%/%j%W%H$r3F%N!<%I$N(B $PGDATA $B0J2<$KG[CV$7$^$9!#$"$i$+$8(B $B$a(Bpgpool-II-x.x.x/sample $B0J2<$K%5%s%W%k%9%/%j%W%H$bMQ0U$7$F$"$j$^$9$N(B $B$G;29M$K$7$F$/$@$5$$!#$3$3$G$O%5%s%W%k%9%/%j%W%H$r;H$C$F!"(BPITR $B$K$h$k(B $B%j%+%P%jJ}K!$H!"(Brsync $B$K$h$k%j%+%P%jJ}K!$r@bL@$7$^$9!#(B

PITR $B$K$h$k%j%+%P%j(B

$B$3$3$G$O(B PostgreSQL 8.2 $B0J9_$G(B PITR $B5!G=$r;H$C$F%j%+%P%j$r$9$k@_DjNc$r(B $B@bL@$7$^$9!#(BPITR $B$K$h$k%j%+%P%j$r$9$k>l9g$K$O$"$i$+$8$a(B PostgreSQL $B$N(B $B@_Dj$G%m%0$r%"!<%+%$%V$5$;$k$h$&$K$7$F$*$$$F$/$@$5$$!#(B

$B$^$:%U%!!<%9%H%9%F!<%8$G%Y!<%9%P%C%/%"%C%W$r$r(B copy-base-backup $B$H$7$^$9(B)$B$rMQ0U$7(B $B$^$9!#Nc$($P0J2<$N$h$&$J%9%/%j%W%H$G
#! /bin/sh DATA=$1 RECOVERY_TARGET=$2 RECOVERY_DATA=$3 psql -c "select pg_start_backup('pgpool-recovery')" postgres echo "restore_command = 'scp $HOSTNAME:/data/archive_log/%f %p'" > /data/recovery.conf tar -C /data -zcf pgsql.tar.gz pgsql psql -c 'select pg_stop_backup()' postgres scp pgsql.tar.gz $RECOVERY_TARGET:$RECOVERY_DATA

$B%Y!<%9%P%C%/%"%C%W
restore_command = 'scp master:/data/archive_log/%f %p'

$B%;%+%s%I%9%F!<%8$G$O:G?7$N>uBV$^$G(B PITR $B$K$h$k%j%+%P%j$ro!"%H%i%s%6%/%7%g%s%m%0$r@Z$jBX$($k$K$O!"(Bpg_switch_xlog $B4X?t$rMxMQ(B $B$7$^$9$,!"$3$N4X?t$O!"%"!<%+%$%V%m%0%U%!%$%k$,@8@.$5$l$kA0$K=*N;$7$F(B $B$7$^$&2DG=@-$,$"$j$^$9!#(B $B$=$3$G!"$h$j0BA4$K%*%s%i%$%s%j%+%P%j$r9T$&$?$a$K(B pgpool_switch_xlog $B4X?t$,MQ0U$5$l$F$$$^$9!#(B pgpool_switch_xlog $B4X?t$N4pK\F0:n$O(B pg_switch_xlog $B4X?t$HF1$8$G$9$,!"(B $B%H%i%s%6%/%7%g%s%m%0$N@Z$jBX$($K$h$k%"!<%+%$%V%m%0%U%!%$%k$N@8@.$r(B $BBT$C$F$+$i=*N;$7$^$9!#(B $B$3$N4X?t$O!"A0=R$N!V(BC$B8@8l4X?t$N%$%s%9%H!<%k!W$r

#! /bin/sh # Online recovery 2nd stage script # datadir=$1 # master dabatase cluster DEST=$2 # hostname of the DB node to be recovered DESTDIR=$3 # database cluster of the DB node to be recovered port=5432 # PostgreSQL port number archdir=/data/archive_log # archive log directory # Force to flush current value of sequences to xlog psql -p $port -t -c 'SELECT datname FROM pg_database WHERE NOT datistemplate AND datallowconn' template1| while read i do if [ "$i" != "" ];then psql -p $port -c "SELECT setval(oid, nextval(oid)) FROM pg_class WHERE relkind = 'S'" $i fi done psql -p $port -c "SELECT pgpool_switch_xlog('$archdir')" template1

$B%9%/%j%W%HCf$N(Bwhile$B%k!<%W$O!"A4%G!<%?%Y!<%9Cf$N%7!<%1%s%9CM$r%H%i%s%6%/%7%g%s%m%0$KEG$-=P$7$^$9!#(B $B$3$l$K$h$C$F!"%7!<%1%s%9$b@5$7$/%j%+%P%j$5$l$k$h$&$K$J$j$^$9!#(B

$B%9%/%j%W%H$NG[CV$,40N;$7$?$i(B pgpool.conf $B$K@_Dj$7$^$9!#(B
recovery_1st_stage_command = 'copy-base-backup' recovery_2nd_stage_command = 'pgpool_recovery_pitr'

$B$3$l$G(B PITR $B$K$h$k%*%s%i%$%s%j%+%P%j$N=`Hw$,40N;$G$9!#(B

pgpool_remote_start

$B%G!<%?:FF14|8e$K(B postmaster $B$r5/F0$5$;$k%9%/%j%W%H$G$9!#(B pgpool $B$+$i$O0J2<$N7A<0$G%9%/%j%W%H$r
% pgpool_remote_start remote_host remote_datadir remote_host: $B%j%+%P%j%N!<%I$N%[%9%HL>(B remote_datadir: $B%j%+%P%j%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

$B%5%s%W%k%9%/%j%W%H$G$O(B ssh $B7PM3$G(B postmaster $B$r5/F0$7$F$$$^$9!#$3$A$i(B $B$b$"$i$+$8$a%Q%9%U%l!<%:L5$7$G(B ssh $B7PM3$G%m%0%$%s$G$-$k$h$&$K@_Dj$7$F(B $B$*$/I,MW$,$"$j$^$9!#(B

PITR $B$K$h$k%j%+%P%j$G$"$l$P!"(Bpgpool_remote_start $BFb$G%Y!<%9%P%C%/%"%C(B $B%W$rE83+$7!"(Brecovery.conf $B$NFbMF$K$7$?$,$C$F%j%+%P%j$7$?8e$K(B postmaster $B$,@\B32DG=>uBV$K$J$j$^$9!#(B

#! /bin/sh DEST=$1 DESTDIR=$2 PGCTL=/usr/local/pgsql/bin/pg_ctl # Expand a base backup ssh -T $DEST 'cd /data/; tar zxf pgsql.tar.gz' 2>/dev/null 1>/dev/null < /dev/null # Startup PostgreSQL server ssh -T $DEST $PGCTL -w -D $DESTDIR start 2>/dev/null 1>/dev/null < /dev/null &

rsync $B$K$h$k%j%+%P%j(B

7.4 $B0JA0$N>l9g$O(B PITR $B5!G=$,$"$j$^$;$s!#$^$?!"(B8.0 $B$H(B 8.1 $B$N>l9g$O(B $B%H%i%s%6%/%7%g%s%m%0$r6/@)E*$K@Z$jBX$($k4X?t$,MQ0U$5$l$F$$$^$;$s!#(B $B$=$3$G(B PITR $B$r;H$o$:$K(Brsync $B$r;H$C$?%j%+%P%jJ}K!$r@bL@$7$^$9!#(B sample $B%G%#%l%/%H%j$K(B pgpool_recovery $B$H$$$&%U%!%$%k$,$"$j$^$9!#(B $B%^%9%?$+$iI|5"$5$;$k%N!<%I$X$N%G!<%?$NJ*M}%3%T!<$r9T$&%9%/%j%W%H$G$9!#(B pgpool $B$+$i$O0J2<$N7A<0$G%9%/%j%W%H$r
% pgpool_recovery datadir remote_host remote_datadir datadir: $B%^%9%?$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B remote_host: $B%j%+%P%j%N!<%I$N%[%9%HL>(B remote_datadir: $B%j%+%P%j%N!<%I$N%G!<%?%Y!<%9%/%i%9%?%Q%9(B

$B%5%s%W%k%9%/%j%W%H$G$O(B rsync $B$r;H$C$FJ*M}%3%T!<$r$7$F$$$^$9!#$b$7(B rsync $B$r;H$&>l9g$O!"%Q%9%U%l!<%:L5$7$G(B ssh $B7PM3$G%m%0%$%s$G$-$k$h$&$K(B $B$"$i$+$8$a@_Dj$7$F$*$/I,MW$,$"$j$^$9!#(B

rsync$B$K4X$9$kCm5-(B:

-c (or --checksum) $B%*%W%7%g%s$rIU$1$J$$$H!"%U%!%$%k$,3NAw$5$l$J$$>l9g$,$"$j$^$9!#(B
-z (or --compress)$B%*%W%7%g%s$ODcB.$J%M%C%H%o!<%/$G$O8z2L$,$"$j$^$9$,!"(B 100M$B0J>e$N9bB.$J%M%C%H%o!<%/$G$O$+$($C$F(BCPU$BIi2Y$rA}$d$7!"7k2LE*$KCY$/$J$k$3$H$,$"$j$^$9!#(B $B9bB.%M%C%H%o!<%/$G$O!"$3$N%*%W%7%g%s$r;HMQ$7$J$$$3$H$r$*4+$a$7$^$9!#(B
rsync $B$N?7$7$$%P!<%8%g%s(B(3.0.5)$B$G$O!"(B50%$B$b@-G=$,NI$/$J$C$?$H$$$&Js9p$,(B pgpool-general$B%a!<%j%s%0%j%9%H$G$"$j$^$7$?!#(B

pgpool_recovery $B$r;H$&>l9g$O(B pgpool.conf $B$K0J2<$N9T$rDI2C$7$F$/$@$5$$!#(B
recovery_1st_stage_command = 'pgpool_recovery' recovery_2nd_stage_command = 'pgpool_recovery'

$B%j%+%P%j$N
$B0J>e$G%*%s%i%$%s%j%+%P%j$N=`Hw$,@0$$$^$7$?!#(B $B%*%s%i%$%s%j%+%P%j$r
$BCm0UE@$H$7$F!"(Bpcp_recovery_node $B$rl9g$O(B pgmgt.conf.php $BFb$N(B _PGPOOL2_PCP_TIMEOUT $B$rBg$-$/$7$F$/$@$5$$!#(B

$B%*%s%i%$%s%j%+%P%j$rMxMQ$7$?(BPostgreSQL$B$N%^%$%J!<%P!<%8%g%s%"%C%W(B

$B%l%W%j%1!<%7%g%s%b!<%I$N>l9g(B

$B%l%W%j%1!<%7%g%s%b!<%I$G(Bpgpool-II$B$,F0:n$7$F$$$k>l9g$O!"%*%s%i%$%s$G3F%N!<%I$N(BPostgreSQL$B$r%P!<%8%g%s%"%C%W$G$-$^$9!#(B $B$?$@$7!"%N!<%I$N@Z$jN%$7;~$HDI2C;~$K!"(Bpgpool-II$B$K@\B3$7$F$$$k$9$Y$F$N%;%C%7%g%s$,@ZCG$5$l$k$N$GCm0U$7$F$/$@$5$$!#(B $B$^$?!"%*%s%i%$%s%j%+%P%j$,MxMQ$G$-$k%P!<%8%g%s%"%C%W$O%^%$%J!<%P!<%8%g%s%"%C%W$N$_$G!"%@%s%W(B/$B%j%9%H%"$,ITMW$J%j%j!<%9$K8B$j$^$9!#(B

$B$O$8$a$K!">e5-$N!V%*%s%i%$%s%j%+%P%j$N35MW!W$r;29M$K3F%N!<%I$G%*%s%i%$%s%j%+%P%j$,MxMQ$G$-$k$h$&$K=`Hw$7$^$9!#(B

PostgreSQL$B$N%P!<%8%g%s%"%C%W$O!"%^%9%?0J30$N%N!<%I$+$i9T$$!":G8e$K%^%9%?%N!<%I$r%P!<%8%g%s%"%C%W$7$^$9!#(B $B$=$3$G!"$^$:%P!<%8%g%s%"%C%W$r9T$&%^%9%?0J30$N#1$D$N%N!<%I$N(BPostgreSQL$B$rDd;_$7$^$9!#(B pgpool-II$B$,(BPostgreSQL$B$NDd;_$r8!CN$9$k$H!"0J2<$N$h$&$J%m%0$r=PNO$7$F=LB`1?E>$K0\9T$7$^$9!#(B $B$=$N:]!"(Bpgpool-II$B$K@\B3$7$F$$$k$9$Y$F$N%;%C%7%g%s$O0lC6@ZCG$5$l$^$9!#(B
2010-07-27 16:32:29 LOG: pid 10215: set 1 th backend down status 2010-07-27 16:32:29 LOG: pid 10215: starting degeneration. shutdown host localhost(5433) 2010-07-27 16:32:29 LOG: pid 10215: failover_handler: set new master node: 0 2010-07-27 16:32:29 LOG: pid 10215: failover done. shutdown host localhost(5433)

$BDd;_$7$?%N!<%I$N(BPostgreSQL$B$r%P!<%8%g%s%"%C%W$7$^$9!#(B $B%P!<%8%g%s%"%C%W$O!"?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$r8E$$%P!<%8%g%s$N%$%s%9%H!<%k@h$K>e=q$-$7$F$b9=$$$^$;$s$,!"LdBj$,5/$-$?;~$K85$N%P!<%8%g%s$KLa$;$k$h$&$K%$%s%9%H!<%k@h$rJQ$($F$*$/$3$H$r$*4+$a$7$^$9!#(B

$B?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$r8E$$%P!<%8%g%s$HJL$N>l=j$K%$%s%9%H!<%k$7$?>l9g!"%j%+%P%j%9%/%j%W%H$rJT=8$9$k$3$H$J$/$=$N$^$^;HMQ$9$k$K$O!"%7%s%\%j%C%/%j%s%/$J$I$r;HMQ$7$F%$%s%9%H!<%k@h$N%Q%9$r0JA0$H9g$o$;$kI,MW$,$"$j$^$9!#(B $B>e=q$-%$%s%9%H!<%k$7$?>l9g$O0J2<$N(BC$B8@8l4X?t$r%$%s%9%H!<%k$9$k$^$G$NA`:n$OITMW$G$9!#(B $B$9$0$K%*%s%i%$%s%j%+%P%j$,
$B8E$$%P!<%8%g%s$N(BPostgreSQL$B$N%$%s%9%H!<%k@h%G%#%l%/%H%jL>$rJQ99$7$^$9!#(B $B0J2<$O!"(BPostgreSQL$B$,(B/usr/local/pgsql$B$K%$%s%9%H!<%k$5$l$F$$$?$H2>Dj$7$?0lNc$G$9!#(B
$ mv /usr/local/pgsql /usr/local/pgsql-old

$B?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$N%$%s%9%H!<%k@h$K%7%s%\%j%C%/%j%s%/$r:n@.$7$^$9!#(B $B$3$l$K$h$j!":#$^$G$I$*$j$N%Q%9$G?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$,;HMQ$G$-$k$h$&$K$J$j$^$9!#(B $B0J2<$O!"?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$,(B/usr/local/pgsql-new$B$K%$%s%9%H!<%k$5$l$F$$$k$H2>Dj$7$?0lNc$G$9!#(B
$ ln -s /usr/local/pgsql-new /usr/local/pgsql

$B%G!<%?%Y!<%9%/%i%9%?%G%#%l%/%H%j$,(BPostgreSQL$B$N%$%s%9%H!<%k@h%G%#%l%/%H%j$N2<0L$K$"$k>l9g$O!"F1$8%Q%9$G%G!<%?%Y!<%9%/%i%9%?$K%"%/%;%9$G$-$k$h$&$K%7%s%\%j%C%/%j%s%/$r:n@.$9$k$+%3%T!<$7$^$9!#(B $B0J2<$O!"%7%s%\%j%C%/%j%s%/$r:n@.$9$kNc$G$9!#(B
$ ln -s /usr/local/pgsql-old/data /usr/local/pgsql/data

$B?7$7$$%P!<%8%g%s$N(BPostgreSQL$B$K!"%*%s%i%$%s%j%+%P%jMQ$N4X?t$r!V(BC$B8@8l4X?t$N%$%s%9%H!<%k!W$r;29M$K%$%s%9%H!<%k$7$^$9!#(B $B%*%s%i%$%s%j%+%P%j$O!"%G!<%?%Y!<%9%/%i%9%?$r%3%T!<$7$^$9$N$G!":G8e$N(Bpsql$B$r;HMQ$7$?4X?t$N:n@.$OITMW$G$9!#(B make install$B$r
$B:G8e$K%*%s%i%$%s%j%+%P%j$r
$B0J>e$N
Streaming Replication$B$rMxMQ$7$F$$$k>l9g(B

$B%^%9%?!<%9%l!<%V%b!<%I$G(BStreaming Replication$B$rMxMQ$7$F$$$k>l9g$O!"%*%s%i%$%s$G%9%?%s%P%$$N(BPostgreSQL$B$r%^%$%J!<%P!<%8%g%s%"%C%W$G$-$^$9!#(B

$B%9%?%s%P%$$N(BPostgreSQL$B$r%^%$%J!<%P!<%8%g%s%"%C%W$9$ke5-$N%l%W%j%1!<%7%g%s%b!<%I$N
$B%W%i%$%^%j$N(BPostgreSQL$B$N%^%$%J!<%P!<%8%g%s%"%C%W$O!"%*%s%i%$%s$G$O$G$-$^$;$s!#(B pgpool-II$B$NDd;_$,I,MW$K$J$j$^$9!#(B $B%W%i%$%^%j$N(BPostgreSQL$B$b%P!<%8%g%s%"%C%W$NJ}K!<+BN$O!"%9%?%s%P%$$HF1MM$G$9!#(B $B%W%i%$%^%j$N(BPostgreSQL$B$N%P!<%8%g%s%"%C%W$O0J2<$N
pgpool-II$B$rDd;_(B
$B%W%i%$%^%j$N(BPostgreSQL$B$rDd;_(B
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$B@lMQ$N%5!<%P$KG[CV(B

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Web$B%5!<%P$d%"%W%j%1!<%7%g%s%5!<%P$HF15o(B

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pgpool-II$B$H(BDB$B%5!<%P$N4V$N%M%C%H%o!<%/$,IT0BDj$@$H!"(Bpgpool-II$B$+$i8+$F(BDB$B%N!<%I(B#1$B$,%@%&%s!"B>$N(Bpgpool-II$B$+$i8+$F@5>o!"$H$$$&$h$&$J>uBV$K$J$C$F$7$^$&$3$H$,$"$j$^$9!#(B $B%M%C%H%o!<%/$rFs=E2=$9$k$J$I$7$F!"%M%C%H%o!<%/>c32$,5/$-$J$$$h$&$K$7$F$/$@$5$$!#(B
$B%l%W%j%1!<%7%g%s%b!<%I$G!"%*%s%i%$%s%j%+%P%j$N(Bpgpool-II$B$rMn$7$F$/$@$5$$!#(B $B$5$b$J$$$H!"%j%+%P%j8e$N7k2L$K@09g@-$,$J$/$J$k2DG=@-$,$"$j$^$9!#(B $B%^%9%?!

DB$B%5!<%P$HF15o(B

PostgreSQL$B$N2TF/$7$F$$$k(BDB$B%5%P$HF15o$5$;$kJ}K!$G$9!#(B $B$3$NJ}K!$G$O!"(Bpgpool-II$B$,C10l>c32E@$K$J$k$3$H$,$J$/!"M>7W$J%5!<%P$rDI2C$9$kI,MW$b$J$$E@$,M%$l$F$$$^$9$,!"%"%W%j%1!<%7%g%s$,$I$N(BDB$B%5!<%P$K@\B3$9$k$N$+$r<+$iH=CG$9$kI,MW$,$"$k$N$,7gE@$G$9!#(B $B$3$NLdBj$r2r7h$9$k$K$O!"(Bpgpool-HA$B$HAH$_9g$o$;$F2>A[(BIP$B$rMxMQ$7$^$9!#(B

pgpool-HA$B$K$D$$$F(B

pgpool-HA$B$O!"(Bheartbeat$B$J$I$rMxMQ$7$F(Bpgpool-II$B$rFs=E2=$7!"(Bpgpool-II$B<+BN$N2DMQ@-$r>e$2$k%=%U%H%&%'%"$G$9!#(B pgpool-II$B$HF1MM!"(Bpgpool$B%W%m%8%'%/%H$N%5%V%W%m%8%'%/%H$G$"$j!"(Bpgpool$B$N3+H/%5%$%H$G(BOSS$B$H$7$F8x3+$5$l$F$$$^$9!#(B

$B%H%i%V%k%7%e!<%F%#%s%0(B

$B$3$N>O$G$O!"(Bpgpool-II$B$r1?MQCf$KD>LL$7$d$9$$>c32$H!"$=$NBP:vJ}K!$r%1!<%9JL$K@bL@$7$^$9!#(B

health check failed

$B%X%k%9%A%'%C%/$G(Bpgpool-II$B$,(BDB$B%N!<%I$N>c32$r8!=P$7$^$7$?!#(B

2010-07-23 16:42:57 ERROR: pid 20031: health check failed. 1 th host foo at port 5432 is down 2010-07-23 16:42:57 LOG: pid 20031: set 1 th backend down status 2010-07-23 16:42:57 LOG: pid 20031: starting degeneration. shutdown host foot(5432) 2010-07-23 16:42:58 LOG: pid 20031: failover_handler: set new master node: 0 2010-07-23 16:42:58 LOG: pid 20031: failover done. shutdown host foo(5432)

$B$3$N%m%0$O!"(BDB$B%N!<%I(B1($B%[%9%HL>(B foo)$B$,%@%&%s$7$F@Z$jN%$5$l!"?7$7$/(BDB$B%N!<%I(B0$B$,%^%9%?$H$7$F07$o$l=P$7$?$3$H$r<($7$F$$$^$9!#(B DB$B%N!<%I(B1$B$r%A%'%C%/$7!"0[>o860x$rfailed to read kind from frontend

2010-07-26 18:43:24 LOG: pid 24161: ProcessFrontendResponse: failed to read kind from frontend. frontend abnormally exited

pgpool-II$B$+$i8+$F%/%i%$%"%s%H$,FMA3%;%C%7%g%s$r@ZCG$7$?:]$K$3$N$h$&$J%m%0$,;D$j$^$9!#(B $B860x$H$7$F$O!"%"%W%j%1!<%7%g%s$N%P%0!"%"%W%j%1!<%7%g%s$,6/@)=*N;$5$l$?!"$d%M%C%H%o!<%/$N0l;~E*$J>c32$,9M$($i$l$^$9!#(B $B$3$N%m%0$,=P$F$b!"(BDB$B$,2u$l$k$H$+0l4S@-$,$J$/$J$k$h$&$JLdBj$O5/$-$^$;$s$,!"(B $B7QB3$7$F$3$N%m%0$,=PNO$5$l$k$h$&$G$"$l$P!"%"%W%j%1!<%7%g%s$d%M%C%H%o!<%/$N>c32$rD4::$9$k$3$H$r$*$9$9$a$7$^$9!#(B

kind mismatch$B%(%i!<(B

$B%l%W%j%1!<%7%g%s%b!<%I$G1?MQ$7$F$$$k>l9g$K=P$k$3$H$,$"$k%(%i!<$G$9!#(B

2010-07-22 14:18:32 ERROR: pid 9966: kind mismatch among backends. Possible last query was: "FETCH ALL FROM c;" kind details are: 0[T] 1[E: cursor "c" does not exist]

pgpool-II$B$O!"(BSQL$B%3%^%s%I$r3F(BDB$B%N!<%I$KAw?.$7$?$i!"3F(BDB$B%N!<%I$+$iF1$8%l%9%]%s%9$,JV$C$F$/$k$3$H$r4|BT$7$^$9!#(B $B$3$N%(%i!<$O!"0[$J$k%l%9%]%s%9$,JV$C$F$-$?$3$H$r<($7$^$9!#(B Possible last query was:$B$N$"$H$K!"$3$N%(%i!<$rJV$9860x$H$J$C$?Ld$$9g$o$;$N(BSQL$BJ8$,I=<($5$l$^$9!#(B $B$=$N$"$H$G!"3F(BDB$B%N!<%I$+$i$N%l%9%]%s%9$Nl9g$O!"(BPostgreSQL$B$N%(%i!<%a%C%;!<%8$,I=<($5$l$^$9!#(B $B$3$3$G$O!"(B"0[T]"$B$K$h$j!"(B0$BHVL\$N(BDB$B%N!<%I$,(B"T"($B9T>pJs$N3+;O(B)$B$H$$$&1~Ez$rJV$7$?$3$H!"0lJ}(B"1[E"$B$G!"(BDB$B%N!<%I(B1$B$,%(%i!<$rJV$7$?$H$3$H!"$=$N%(%i!<%a%C%;!<%8$O!V(Bcursor "c" does not exist$B!W$G$"$C$?$3$H$,$o$+$j$^$9!#(B
$BCm0U(B: $B$3$N%(%i!<$O!"%^%9%?!<%9%l!<%V%b!<%I$G$b=P$k$3$H$,$"$j$^$9!#(B $B$?$H$($P!"(BSET$B%3%^%s%I$O!"3F%;%C%7%g%s$N>uBV$rF1$8$K$9$k$?$a$K!"4pK\E*$K$9$Y$F$N(BDB$B%N!<%I$KAw?.$5$l$k$+$i$G$9!#(B

$B%G!<%?%Y!<%9$rD4$Y$F860x$rFCDj$7!"$b$7(BDB$B$NF14|$,Jx$l$F$$$k$h$&$G$"$l$P!"%*%s%i%$%s%j%+%P%j$r;H$C$F@5$7$$%G!<%?$HF14|$5$;$F$/$@$5$$!#(B

pgpool detected difference of the number of inserted, updated or deleted tuples

$B%l%W%j%1!<%7%g%s%b!<%I$K$*$$$F!"(Bpgpool-II$B$,!"(BDB$B%N!<%I4V$G(BINSERT/UPDATE/DELETE$B$,JV$97k2L9T$N0c$$$r8!=P$7$^$7$?!#(B

2010-07-22 11:49:28 ERROR: pid 30710: pgpool detected difference of the number of inserted, updated or deleted tuples. Possible last query was: "update t1 set i = 1;" 2010-07-22 11:49:28 LOG: pid 30710: ReadyForQuery: Degenerate backends: 1 2010-07-22 11:49:28 LOG: pid 30710: ReadyForQuery: Affected tuples are: 0 1

$B$3$NNc$G$O!"(Bupdate t1 set i = 1$B$K$h$C$F99?7$5$l$?9T?t$,!"(BDB$B%N!<%I$G0[$J$C$F$$$^$9!#(B $B$^$?!"
$B@5$7$/$J$$%G!<%?$r;}$C$F$$$k$H;W$o$l$k(BDB$B%N!<%I$rDd;_$7!"%*%s%i%$%s%j%+%P%j$r;H$C$F@5$7$$%G!<%?$HF14|$5$;$F$/$@$5$$!#(B

$B@)8B;v9`(B

PostgreSQL$B$N5!G=(B

pg_terminate_backend()$B$G%P%C%/%(%s%I$r=*N;$5$;$k$H%U%'%$%k%*!<%P$7$F$7$^$$$^$9!#(B $B$3$l$O!"(BPostgreSQL$B$,(Bpostmaster$B$r%7%c%C%H%@%&%s$7$?$H$-$HF1$8%a%C%;!<%8$r(Bpgpool$B$KAw$k$?$a$G$9!#(B $B:#$N$H$3$mBP1~J}K!$O$J$$$N$G!"$3$N4X?t$r;H$o$J$$$h$&$K$7$F$/$@$5$$!#(B

$BG'>Z!&%"%/%;%9@)8fJ}<0(B

$B%l%W%j%1!<%7%g%s%b!<%I$^$?%^%9%?(B/$B%9%l!<%V%b!<%I;~$K$O(Btrust, reject, clear text password, pam, $BG'>ZJ}<0$@$1$,MxMQ$G$-$^$9!#(B crypt$BG'>Z$OMxMQ$G$-$^$;$s!#(B md5$BG'>Z$K4X$7$F$O!"(BPostgreSQL$B$K3:Ev%f!<%6$r(Bmd5$BG'>ZIU$G(BPostgreSQL$B$KEPO?$7!"Z%U%!%$%k$r:n@.$9$k$3$H$K$h$jMxMQ$G$-$k$h$&$K$J$j$^$9!#(B

DB$B%f!<%6$N%"%+%&%s%H$G%m%0%$%s$7!"(B"pg_md5 --md5auth $B%Q%9%o!<%I(B" $B$^$?$O(B "pg_md5 --md5auth --username=$B%f!<%6L>(B $B%Q%9%o!<%I(B" $B$rmd5$B$K$h$j0E9f2=$5$l$?%f!<%6L>$H%Q%9%o!<%I$,(Bpool_passwd$B$KEPO?$5$l$^$9!#(B pool_passwd$B$,$^$@B8:_$7$J$1$l$P!"(Bpgpool.conf$B$HF1$8%G%#%l%/%H%jFb$K:n@.$5$l$^$9!#(B
pool_passwd$B$N%U%)!<%^%C%H$O!"(B"$B%f!<%6L>(B:$B%Q%9%o!<%I(B"$B$H$J$C$F$$$^$9!#(B
pool_hba.conf$B$K(Bmd5$BG'>Z$N%(%s%H%j$r:n@.$7$^$9!#(B pool_hba.conf$B$K$D$$$F$O!"(B$B%/%i%$%"%s%HG'>Z(B(HBA)$B$N$?$a$N(Bpool_hba.conf$B@_DjJ}K!(B $B$r;2>H$7$F$/$@$5$$!#(B
$BCm0U;v9`(B: pool_passwd$B$KEPO?$9$k%Q%9%o!<%I$O!"(BPostgreSQL$B$KEPO?$7$?%Q%9%o!<%I$H40A4$KF1$8$G$J$1$l$P$J$j$^$;$s!#(B

$B$=$l0J30$N%b!<%I$G$O!"(Btrust, reject, clear text password, pam, crypt, md5$BG'>ZJ}<0$@$1$,MxMQ$G$-$^$9!#(B

$B0l;~%F!<%V%k$N07$$(B

$B@)8BBP>](B:$B%^%9%?!<%9%l!<%V%b!<%I(B

$B0l;~%F!<%V%k$N:n@.!"99?7$O>o$K%^%9%?(B(primary)$B$G9T$J$o$l$^$9!#(B $B0l;~%F!<%V%k$N8!:w$b!"(Bpgpool-II 3.0$B0J9_$G$O!"%^%9%?$G9T$J$o$l$k$N$G!"0l;~%F!<%V%k$r;H$C$F$$$k$+$I$&$+$r0U<1$9$kI,MW$O$"$j$^$;$s!#(B $B$?$@$7!"J8;zNs$H$7$F0l;~%F!<%V%kL>$r(BSELECT$B$NCf$G;H$C$F$$$k>l9g$O0l;~%F!<%V%k$+$I$&$+$N3NG'$N$7$h$&$,$J$$$N$G!"Ii2YJ,;6$5$l$F$7$^$$!"$=$N0l;~%F!<%V%k$,8+$D$+$i$J$$$+!"$b$7$/$OF1$8L>A0$NJL$N%F!<%V%k$r8!:w$7$F$7$^$&$3$H$K$J$j$^$9!#(B $B$=$N$h$&$JLd$$9g$o$;$OHr$1$k$+!"(B/*NO LOADB ALNCE*/$B$N%3%a%s%H$rA^F~$7$F$/$@$5$$!#(B

SELECT 't1'::regclass::oid;

$B$A$J$_$K!"(Bpsql$B$N(B\d$B%3%^%s%I$N$h$&$K!"%7%9%F%`%+%?%m%0$rLd$$9g$o$;$kCf$GJ8;zNs$H$7$F$N%F!<%V%kL>$r;H$C$F$$$k>l9g$O!"(Bpgpool-II 3.0$B0J9_$G$O%^%9%?$G8!:w$,9T$J$o$l$k$N$G!"LdBj$K$J$j$^$;$s!#(B $B$J$<$J$i!"%7%9%F%`%+%?%m%0$X$N8!:w$O>o$K%^%9%?$G9T$J$o$l$k$+$i$G$9!#(B

$B%l%W%j%1!<%7%g%s%b!<%I$GCm0U$,I,MW$J4X?t$J$I(B

pgpool-II$B$G$OF1$8Ld$$9g$o$;$rAw$C$F$b0[$J$k7k(B $B2L$rJV$9$h$&$J%G!<%?!"$?$H$($PMp?t$d%H%i%s%6%/%7%g%s(BID$B!"(BOID$B$N$h$&$J$b$N$K4X$7$F$O%l%W%j%1!<%7%g(B $B%s$O$7$^$9$,!"(B2$BBf$N%[%9%H$G$^$C$?$/F1$8CM$,%3%T!<$5$l$kJ]>Z$O$"$j$^$;$s!#(B

$B%7%j%"%k7?$K4X$7$F$O!"(Binsert_lock$B$rM-8z$K$7$F$*$1$P%F!<%V%k%m%C%/$rMxMQ$7$FF14|$,l9g$O<+F0E*$K%l%W%j%1!<%7%g%s$5$l$k$N$GF14|$,
pgpool-II 2.3$B0J9_$G$O!"%F!<%V%k$N%G%U%)%k%HCM$G$NMxMQ$b4^$a!"(BCURRENT_TIMESTAMP, CURRENT_DATE, now()$B$O!"<+F0E*$K%^%9%?B&$+$i

pgpool-II 3.1$B$h$jA0$N%P!<%8%g%s$G$O(BDEFAULT$B$K%?%$%`%9%?%s%W$rJV$9<0$,4^$^$l$F$$$k$+$I$&$+$NH=Dj$O@53N$G$O$"$j$^$;$s!#Nc$($P(B
CREATE TABLE rel1( d1 date DEFAULT CURRENT_DATE + 1 )
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foo bigint default (date_part('epoch'::text,('now'::text)::timestamp(3) with time zone) * (1000)::double precision)
$B$N$h$&$K!"%G!<%?7?$,F|IU!";~9o0J30$K$J$C$F$$$k>l9g$O=q$-49$($O9T$J$$$^$;(B $B$s!#(B
INSERT ... SELECT$B$G$O!"Ns$N(BDEFAULT$B$KBP$9$k=q$-49$($r9T$$$^$;$s!#Nc$($P!"(B
CREATE TABLE rel1( c1 int, c2 timestamp default now() )
$B$N;~!"(B
INSERT INTO rel1(c1) VALUES(1)
$B$O(B
INSERT INTO rel1(c1, c2) VALUES(1, '2009-01-01 23:59:59.123456+09')
$B$N$h$&$K=q$-49$($i$l$^$9$,(B
INSERT INTO rel1(c1) SELECT 1
$B$O=q$-49$($i$l$^$;$s!#(B

PostgreSQL 8.2$B$+$=$l$h$jA0$N(BPostgreSQL$B$r$*;H$$$N>l9g!"(B CREATE TEMP TABLE$B$G:n@.$5$l$?%F!<%V%k$O%U%m%s%H%(%s%I$,%;%C%7%g(B $B%s$r=*N;$7$F$b:o=|$5$l$^$;$s!#$3$l$O!"%3%M%/%7%g%s%W!<%k$N8z(B $B2L$G%P%C%/%(%s%I$+$i8+$k$H%;%C%7%g%s$,7QB3$7$F$$$k$h$&$K8+$((B $B$k$+$i$G$9!#%;%C%7%g%s$N=*N;;~$KL@<(E*$K(BDROP TABLE$B$9$k$+!"%H(B $B%i%s%6%/%7%g%s%V%m%C%/$NCf$G(BCREATE TEMP TABLE ... ON COMMIT DROP$B$r$*;H$$2<$5$$!#(B

PostgreSQL 8.3$B0J9_$G$O!"(Breset_query_list$B$K(BDISCARD ALL$B$r;XDj$9$l$P<+F0E*$K:o=|$5$l$k$N$GLdBj$"$j$^$;$s!#(B

$B%/%(%j$K$D$$$F(B

pgpool-II $B$G$O07$&$3$H$,$G$-$J$$%/%(%j$K$D$$$F@bL@$7$^$9!#(B

$B%^%k%A%P%$%HJ8;z$K$D$$$F(B

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$B%^%k%A%9%F!<%H%a%s%H(B(';' $B$G6h@Z$C$FJ#?t$NJ8$r$^$H$a$?(B SQL)$B$r(B pgpool $B$,(B $B@5$7$/=hM}$9$k$3$H$,$G$-$^$;$s!#I,$:J8$rJ,$1$FAw?.$7$F$/$@$5$$!#(B

$B$J$*!"(Bpsql $B$r;H$C$F(B pgpool $B$K@\B3$7$?>l9g$O!"(Bpsql $BFbIt$G%^%k%A%9%F!<%H(B $B%a%s%H$rJ,2r$7!"(B1 $B$D$:$DAw?.$9$k$N$G!"
$B3HD%Ld$$9g$o$;%W%m%H%3%k(B

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JDBC $B%I%i%$%P$J$I$N$h$&$J3HD%Ld$$9g$o$;%W%m%H%3%k$K$OBP1~$7$F$$$^$;$s!#(B $BI,$:4J0WLd$$9g$o$;%W%m%H%3%k$r;HMQ$7$F$/$@$5$$!#(B

SELECT

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postgresql.conf $B$N(B add_missing_from$B@_DjCM$r(B off ($B%G%U%)%k%HCM(B)$B$K@_Dj$7$F$/$@$5$$!#(B add_missing_from $B@_DjCM$,(B on $B$N;~$K;H$($k%/%(%j$O@5$7$/(Bpgpool$B$G=hM}$5$l$J$$2DG=@-(B $B$,$"$j$^$9!#(B

INSERT

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$B%G!<%?J,3d$r$7$F$$$k%F!<%V%k$KBP$7$F(BINSERT $B$r9T$&:]$K$O!"J,3d%k!<%k$H$J$kCM$r(B DEFAULT $B$K$O$G$-$^$;$s!#Nc$((B $B$P%F!<%V%k(B t $B$K(B x $B$H$$$&%+%i%`$,$"$j!"(Bx $B$,J,3d%k!<%k$NBP>]%+%i%`$@$C$?(B $B>l9g$K$O!"(B

INSERT INTO t(x) VALUES (DEFAULT);

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INSERT INTO t(x) VALUES (func());

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UPDATE

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$BJ,3d%k!<%k$H$J$k%+%i%`$r99?7$9$k$HJ,3d%k!<%k$K=>$C$?%G!<%?$N@09g@-$,Jx(B $B$l$k2DG=@-$,$"$j$^$9!#(Bpgpool-II $B$G$OFC$K%G!<%?$N:FG[CV$H$$$&$3$H$O9T$$(B $B$^$;$s!#(B

$B$b$7@)Ls0cH?$J$I$K$h$j0lIt$N%N!<%I$G%(%i!<$K$J$C$?>l9g$K%m!<%k%P%C%/$9(B $B$k$3$H$O$G$-$^$;$s!#(B

WHERE $B6g$K%G!<%?J,3d$r9T$C$?%F!<%V%k$r;2>H$9$k%5%V%/%(%j$d4X?t8F$S=P$7$,$"$k>l9g$K$O@5$7$/F0$+$J$$2DG=@-$,(B $B$"$j$^$9!#(B

$BNc!'(BUPDATE branches set bid = 100 where bid = (select max(bid) from beances);

SELECT ... FOR UPDATE

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WHERE $B6g$K%G!<%?J,3d$r9T$C$?%F!<%V%k$r;2>H$9$k%5%V%/%(%j$d4X?t8F$S=P$7$,$"$k>l9g$K$O@5$7$/F0$+$J$$2DG=@-$,(B $B$"$j$^$9!#(B
$BNc!'(BSELECT * FROM branches where bid = (select max(bid) from beances) FOR UPDATE;

COPY

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COPY BINARY $B$K$OBP1~$7$F$$$^$;$s!#$^$?!"%U%!%$%k$+$i$N%3%T!<$K$bBP1~$7(B $B$F$$$^$;$s!#(BCOPY FROM STDIN $B$H(B COPY TO STDOUT $B$N$_BP1~$7$F$$$^$9!#(B

ALTER/CREATE TABLE $B$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

pgpool $B$K>pJs$r99?7$5$;$k$?$a$K$O!"(Bpgpool $B$r:F5/F0$9$kI,MW$,$"$j$^$9!#(B

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$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

$B%H%i%s%6%/%7%g%sCf$KH/9T$5$l$k(B SELECT $B$O(B dblink $B$r7PM3$9$k>l9g$K$OJL%H(B $B%i%s%6%/%7%g%s$K$J$j$^$9!#0J2<$KNc$r<($7$^$9!#(B

BEGIN; INSERT INTO t(a) VALUES (1); SELECT * FROM t ORDER BY a; <-- $B>e$N(B INSERT $B$7$?CM$O8+$($J$$(B END;

$B$^$?@)Ls0cH?$J$I$K$h$j0lIt$N%N!<%I$G%(%i!<$K$J$C$?>l9g$K%m!<%k%P%C%/$9$k$3$H$O$G$-$^$;$s!#(B

View/Rule

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

View $B$d(B Rule $B$O3F%N!<%I$KF1$8FbMF$,Dj5A$5$l$^$9!#(B

CREATE VIEW sample AS SELECT * FROM a, b where a.i = b.i

$B>e5-$N$h$&$J(B $B%F!<%V%k7k9g$r4^$s$@(BVIEW$B$O!"(Ba $B$H(B b $B$OF1$8%N!<%IFb$G$N$_7k9g=hM}$r9T$$!"(B $B3F%N!<%I$+$i$Nl9g$K!"(BVIEW$B$r:n@.$9$k$3$H$O2DG=$G$9!#$3$N>l9g$K$O(BVIEW$B$r(B pgpool_catalog.dist_def$B%F!<%V%k$K(BVIEW$B$rEPO?$7$F$*$-$^$9!#(B $B$^$?!"(Bpgpool_catalog.dist_def$B%F!<%V%k$N(Bcol_name$B$H(Bdist_def_func$B$K$O!"(BVIEW$B$GDj5A$7$?(B $B%+%i%`$H(BVIEW$B$KBP$7$F(BINSERT$B$,H/9T$5$l$?>l9g$K2?=h$N%N!<%I$K%/%(%j$rLd$$9g$o$;$k$N$+$r7hDj(B $B$9$k4X?t$rEPO?$7$F$/$@$5$$!#(B

$B4X?t(B/$B%H%j%,$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

$B4X?t$O3F%N!<%I$KF1$8FbMF$,Dj5A$5$l$^$9!#4X?tFb$G(B JOIN $B$dB>$N%N!<%I$N%G!<(B $B%?A`:n$r9T$&$3$H$O$G$-$^$;$s!#(B

Natural Join $B$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

Natural Join $B$OMxMQ$G$-$^$;$s!#(BON $B7k9g>r7o$^$?$O!"(BUSING($B7k9g%+%i%`(B) $B$rL@<(E*$K(B $B;XDj$9$kI,MW$,$"$j$^$9!#(B

USING $B6g$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

JOIN $B9=J8$NCf$GMxMQ$5$l$k(B USING $B6g$O%/%(%j$N=q$-49$(=hM}$K$h$C$F(B ON $B6g$K(B $BJQ49$5$l$^$9!#$=$N$?$a!"%?!<%2%C%H%j%9%H$K(B "*" $B$rMxMQ$9$kLd$$9g$o$;$r9T$&(B $B>l9g$K$O!"F1$8NsL>$,=PNO$5$l$^$9!#(B

$B%G%C%I%m%C%/$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

$B%N!<%I4V$r$^$?$,$k%G%C%I%m%C%/$r8!=P$9$k$3$H$,$G$-$^$;$s!#(B

$BNc!'(Baccounts$B%F!<%V%k$O0J2<$N%k!<%k$GJ,3d$5$l$F$$$k!#(B aid <= 100000 $B%N!<%I(B 0 aid >= 100000 $B%N!<%I(B 1 A) BEGIN; B) BEGIN; A) SELECT * FROM accounts WHERE aid = 100001 FOR UPDATE; B) SELECT * FROM accounts WHERE aid = 100000 FOR UPDATE; A) SELECT * FROM accounts WHERE aid = 100000 FOR UPDATE; B) SELECT * FROM accounts WHERE aid = 100001 FOR UPDATE;

$B$3$N>l9g!"C10l$N%N!<%I$G$O%G%C%I%m%C%/$r8!CN$G$-$J$$$?$a!"(Bpgpool $B$OBT(B $B$?$5$l$?>uBV$K$J$j$^$9!#$3$N8=>]$O(B SELECT FOR UPDATE $B0J30$K$b9T%m%C%/(B $B$r3MF@$9$k%/%(%j$GH/@8$9$k2DG=@-$,$"$j$^$9!#(B

$B$^$?!"$"$k%N!<%I$G%G%C%I%m%C%/$,H/@8$7$?>l9g$O!"3F%N!<%I$N%H%i%s%6%/%7%g(B $B%s$N>uBV$,0[$J$k>u67$K$J$j$^$9!#$=$N$?$a!"%G%C%I%m%C%/$r8!CN$7$?;~E@$G(B $B0J2<$N%m%0$r=PNO$7$F(B pgpool $B$O3:Ev$N%W%m%;%9$r=*N;$5$;$^$9!#(B
pool_read_kind: kind does not match between master(84) slot[1] (69)

$B%9%-!<%^$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

public $B0J30$N%9%-!<%^$KB0$9$h$&$J%*%V%8%'%/%H$N;2>H$OI,$:(B

$B%9%-!<%^(B.$B%*%V%8%'%/%H(B

$B$H;XDj$9$k$h$&$K$7$F$/$@$5$$!#(B

set search_path = xxx

$B$r;XDj$7!"%9%-!<%^L>$r>JN,$9$k$H!"(Bpgpool $B$,$I$NJ,;6%k!<%k$rE,MQ$9$k$+(B $BH=CG$G$-$^$;$s!#(B

$B%F!<%V%kL>!"%+%i%`L>$K$D$$$F(B

$B@)8BBP>](B:$B%Q%i%l%k%b!<%I(B

pool_$B$G;O$^$k%F!<%V%k!"%+%i%`L>$O;H$($^$;$s!#%/%(%j=q$-49$($N:]$KFbIt=hM}$G;HMQ$7$^$9!#(B

$B%7%9%F%`(B DB

$BJ,3d%k!<%k(B

pgpool-II $B$G$OJ,3d%k!<%k$NBP>]$N%+%i%`$O(B 1 $B$D$N$_$H$7$^$9!#(Bx $B$H(B y $B$N(B OR $B>r7o$J$I$H$$$C$?$b$N$K$OBP1~$7$F$$$^$;$s!#(B

$B%S%k%I$KI,MW$J4D6-(B

libpq

pgpool-II $B$G$O(B libpq $B$r%j%s%/$7$^$9!#(Blibpq $B$N%P!<%8%g%s$O(B 2.0 $B$N>l9g!"(B configure $B$K<:GT$7$^$9!#I,$:(B libpq 3.0 $B0J9_(B(PostgreSQL 7.4$B0J9_(B) $B$r%j%s%/$9$k$h(B $B$&$K$7$F$/$@$5$$!#$^$?!"(BSystemDB $B$N%P!<%8%g%s$b(B PostgreSQL 7.4 $B0J9_$,(B $BI,?\$K$J$j$^$9!#(B

$B%/%(%j%-%c%C%7%e(B

$B8=:_$N%/%(%j%-%c%C%7%e$N

$B%j%U%!%l%s%9(B

PCP$B%3%^%s%I%j%U%!%l%s%9(B

PCP$B%3%^%s%I0lMw(B

pgpool-II$B$rA`:n$9$k(BUNIX$B%3%^%s%I$H$7$F!"0J2<$N$b$N$,$"$j$^$9!#(B
* pcp_node_count - $B%N!<%I?t$rpJs$rpJs$rpJs$r:3J$5$;$k(B * pcp_stop_pgpool - pgpool-II$B$rDd;_$5$;$k(B * pcp_recovery_node - $B%^%9%?%N!<%I$r;H$C$F%N!<%I$N%G!<%?$r:FF14|!"%N!<%I5/F0$5$;$k(B

$B6&DL0z?t(B

$BA4$F$N%3%^%s%I$K$O6&DL$9$k0z?t$,$"$j$^$9!#$3$l$O@\B3$9$k(Bpgpool-II$B$N>pJs$dG'>Z(B $B>pJs$J$I$G$9!#(B
ex) $ pcp_node_count [-d] 10 localhost 9898 postgres hogehoge $BBh0l0z?t(B - $B%?%$%`%"%&%HCM(B $BIC?t$G%?%$%`%"%&%HCM$r;XDj$7$^$9!#$3$N;~4VFb$K(Bpgpool-II$B$+$i1~(B $BEz$,$J$$>l9g$O%3%M%/%7%g%s$r@ZCG$7$F=*N;$7$^$9!#$J$*!"(B $B$3$N%*%W%7%g%s$O(B 2.1 $B$+$i$OL5;k$9$k$h$&$K$J$C$F$$$^$9!#(B $BBhFs0z?t(B - pgpool-II$B$,2TF0$7$F$$$k%[%9%HL>(B $BBh;00z?t(B - PCP$B%]!<%HHV9f(B $BBh;M0z?t(B - PCP$B%f!<%6L>(B $BBh8^0z?t(B - PCP$B%Q%9%o!<%I(B $B%*%W%7%g%s0z?t$H$7$F!"(B-d$B$,$"$j$^$9!#(B-d$B$,;XDj$5$l$k$H%G%P%C%0>pJs$r=PNO$7$^$9!#(B

PCP$B%f!<%6L>$H%Q%9%o!<%I$O(B ./configure $B;~$K(B --prefix $B$G;XDj$7$?(B '$B%$%s%9%H!<%k%G%#%l%/%H%j(B/etc' $B$K$"$k(B pcp.conf $BFb$K5-=R$5$l$F$$$k$b$N$r;XDj(B $B$7$^$9!#(Bpcp.conf $B%U%!%$%k$N>l=j$,%G%U%)%k%H0J30$N>l=j$K$"$k>l9g!"(Bpgpool $B$N(B -F $B%*%W%7%g%s$G$=$N0LCV$r;XDj$9$k$3$H$,$G$-$^$9!#(B $B%Q%9%o!<%I$O%3%^%s%I$KEO$9;~E@$G(Bmd5$B2=$5$l$F$$$kI,MW$O$"$j$^$;$s!#(B

$B%3%^%s%I72(B

$BA4$F$N%3%^%s%I$O!"
pcp_node_count

$B=q<0!'(B pcp_node_count _timeout_ _host_ _port_ _userid_ _passwd_

pgpool-II$B$N(B pgpool.conf $B$GDj5A$5$l$?%N!<%I$NAm?t$rI=<($7$^$9!#@Z$jN%$5$l$F$$$k(B $B%N!<%I$N6hJL$O$7$^$;$s!#(B

pcp_node_info

$B=q<0!'(B pcp_node_info _timeout_ _host_ _port_ _userid_ _passwd_ _nodeid_

pgpool-II$B$N(B pgpool.conf $B$GDj5A$5$l$?%N!<%I$N>pJs$rI=<($7$^$9!#=PNO7k2L$O0J2<$N(B $BNc$NDL$j$G$9!#(B

ex) $ pcp_node_info 10 localhost 9898 postgres hogehoge 0 host1 5432 1 1073741823.500000 $B7k2L$O0J2<$N=g$NDL$j$G$9!#(B 1. $B%N!<%I$N%[%9%HL>(B 2. $B%N!<%I$N%]!<%HHV9f(B 3. $B%9%F!<%?%9(B 4. $B%m!<%I%P%i%s%9%&%'%$%H(B $B%9%F!<%?%9$O(B[0..3]$B$^$G$N?t;z$GI=$o$5$l$^$9!#3F?t;z$N0UL#$O!'(B 0 - $B=i4|2=;~$N$_$KI=$o$l$k!#(BPCP$B%3%^%s%I$GI=<($5$l$k$3$H$O$J$$!#(B 1 - $B%N!<%I2TF/Cf!#@\B3L5$7(B 2 - $B%N!<%I2TF/Cf!#@\B3M-$j(B 3 - $B%N!<%I%@%&%s(B

$B%m!<%I%P%i%s%9%&%'%$%H$O(BNormalize$B$5$l$?%U%)!<%^%C%H$G=PNO$5$l$^$9!#(B

$BDj5A$5$l$F$$$J$$%N!<%I(BID$B$r;XDj$9$k$H(BBackendError$B$HI=<($5$l!"=*N;%3!<%I(B12$B$G=*(B $BN;$7$^$9!#(B

pcp_proc_count

$B=q<0!'(B pcp_proc_count _timeout_ _host_ _port_ _userid_ _passwd_

pgpool-II$B$N;R%W%m%;%9$N%W%m%;%9(BID$B$r0lMwI=<($7$^$9!#J#?t$"$k>l9g$O6uGrJ8;z$G6h(B $B@Z$i$l$^$9!#(B

pcp_proc_info

$B=q<0!'(B pcp_proc_info _timeout_ _host_ _port_ _userid_ _passwd_ _processid_

pgpool-II$B$N;R%W%m%;%9>pJs$rI=<($7$^$9!#=PNO7k2L$O0J2<$NNc$NDL$j$G$9!#(B

ex) $ pcp_proc_info 10 localhost 9898 postgres hogehoge 3815 postgres_db postgres 1150769932 1150767351 3 0 1 14067 1 postgres_db postgres 1150769932 1150767351 3 0 1 14068 1 $B7k2L$O0J2<$N=g$NDL$j$G$9!#(B 1. $B@\B3$7$F$$$k%G!<%?%Y!<%9L>(B 2. $B@\B3$7$F$$$k%f!<%6L>(B 3. $B%W%m%;%9%9%?!<%H;~9o(B 4. $B%3%M%/%7%g%s:n@.;~9o(B 5. $B%W%m%H%3%k%a%8%c!<%P!<%8%g%s(B 6. $B%W%m%H%3%k%^%$%J!<%P!<%8%g%s(B 7. $B%3%M%/%7%g%s;HMQ2s?t(B 8. PostgreSQL$B%P%C%/%(%s%I%W%m%;%9(BID 9. $B%U%m%s%H%(%s%I$+$i@\B3$,$"$k>l9g$O(B1$B!"$=$&$G$J$1$l$P(B0 $B%3%M%/%7%g%s$,%P%C%/%(%s%I$KBP$7$FD%$i$l$F$$$J$$>l9g!"%G!<%?$OI=<($5$l$^$;$s!#(B $B%3%M%/%7%g%s>pJs$,J#?t$"$k>l9g!"J#?t9T$K(B1$B9T(B1$B%3%M%/%7%g%s>pJs$GI=<($5$l$^$9!#(B $B;~9o$O(BEPOCH$B%?%$%`$+$i$NIC?t$GI=$o$5$l$^$9!#(B $BDj5A$5$l$F$$$J$$%W%m%;%9(BID$B$r;XDj$9$k$H(BBackendError$B$HI=<($5$l!"=*N;%3!<%I(B12$B$G(B $B=*N;$7$^$9!#(B

pcp_systemdb_info

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pcp_detach_node

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pcp_attach_node

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pcp_promote_node

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pcp_stop_pgpool

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pcp_recovery_node

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select count(*) from P1-table; -> $B%/%(%j=q$-49$((B SELECT sum(pool_c$1) as count FROM dblink(select pool_parallel('select count(*) from P1-table')) AS pool_$1g (pool_c$1 bigint);

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3.1.3 (hatsuiboshi) 2012/01/31

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http://www.pgpool.net/pipermail/pgpool-general/2012-March/000299.html
syslog $B$rM-8z$K$7$?$H$-$K5/$3$k%G%C%I%m%C%/$r=$@5$7$^$7$?!#$3$N%P%0$O0J2<$GJs9p$5$l!"%Q%C%A$O(B Gilles Darold $B$5$s$K$h$jDs6!D:$-$^$7$?!#(B(Tatsuo Ishii)
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pool_setall_node_to_be_sent() $B4X?t$K$*$$$F(B BACKEND_INFO $B%^%/%m$NBe$o$j$K(B private_backend_status $BJQ?t$rMxMQ$9$k$h$&=$@5$7$^$7$?!#(B
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3.1.2 (hatsuiboshi) 2012/01/31

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3.1.1 (hatsuiboshi) 2011/12/06

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Windows$B4D6-$G$N$_I,MW$J(BPGDLLIMPORTI$B$r:o=|$7$^$7$?!#$3$l$O(Bgcc$B$r;H$o$J$$4D6-$GLdBj$r0z$-5/$3$7$^$9!#(B $B%Q%C%A$O(BIbrar Ahmed$B$5$s$,Ds6!$7$^$7$?!#(B

3.1.0 (hatsuiboshi) 2011/09/08

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3.0.4 (umiyameboshi) 2011/06/01

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  3.0.3 (umiyameboshi) 2011/02/23
  
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  $B$3$l$O!"@8$-$F$$$k%N!<%IHV9f$N0lHVl9g$O!">e$NLdBj$O2r>C$5$l$:!"(B3.0.1$B$HF1MM$NF0:n$K$J$j$^$9!#(B
  
  $B2~NI(B
  
  $B%9%F!<%?%9%U%!%$%k$rFI$s$G$$$k$H$-$K!"FCDj$N%P%C%/%(%s%I$,%@%&%s>uBV$J$i$P%m%0$r=PNO$9$k$h$&$K$7$^$7$?(B(Tatsuo)
  pgpool$B$,l9g$K!"%(%i!<%a%C%;!<%8$r=PNO$9$k$h$&$K$7$^$7$?(B(Tatsuo)
  sql$B%G%#%l%/%H%j$K
  
  3.0.2(umiyameboshi) 2011/02/17
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$OLdBj$,$"$C$?$?$a$K!"%j%j!<%9$,C$5$l$^$7$?!#(B
  
  3.0.1 (umiyameboshi) 2010/10/19
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(B3.0$B$K$*$1$kMM!9$J%P%0$,=$@5$5$l$F$$$^$9!#(B
  
  $B%P%0=$@5(B
  
  $BG'>Z$5$l$k%5!<%P$,J#?t$"$k>l9g$K%/%i%C%7%e$9$k(Bmd5$BG'>Z$N%P%0$r=$@5$7$^$7$?(B(Tatsuo)
  $B3HD%Ld$$9g$o$;%W%m%H%3%k$K$*$$$F!"9=J8%(%i!<$N%/%(%j$r$B%]!<%?%k>pJs$N%O%s%I%j%s%0$K$*$1$k;R%W%m%;%9$,=*N;$9$k%P%0$r=$@5$7$^$7$?(B(Kitagawa)
  $B3HD%Ld$$9g$o$;%W%m%H%3%k$K$*$$$F!"$R$H$D$N%N!<%I$KAw?.$5$l$?%/%(%j$,%(%i!<$r5/$3$7$?$H$-$K%O%s%0%"%C%W$9$k%P%0$r=$@5$7$^$7$?(B(Kitagawa)
  $B1Q8l%I%-%e%a%s%H$N8m?"$r=$@5$7$^$7$?!#(BAsaf Ohaion$B$5$s$N%Q%C%A$r
  
  3.0 (umiyameboshi) 2010/09/10
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$O(B3.0$B7ONs$N:G=i$NHG$G!"(B2.2$B7O$d(B2.3$B7O$+$i$N!V%a%8%c!<%P!<%8%g%s%"%C%W!W$K$"$?$j$^$9!#(B PostgreSQL 9.0$B$N?75!G=$G$"$k(BStreaming Replication/Hot Standby$B9=@.$KBP1~$9$k$J$I!"B?$/$N5!G=$,DI2C$5$l$k$H6&$K!"FbIt9=B$$,@0M}$5$l$F8+DL$7$,NI$/$J$C$FJ]e$7$F$$$^$9!#(B
  
  $B%^%9%?!<%9%l!<%V%b!<%IA4HL$GB?$/$N2~A1$,$J$5$l$F$$$^$9!#(B
  
  $BL@<(E*$J%H%i%s%6%/%7%g%sFb$N(BSELECT$B$,Ii2YJ,;6$G$-$k$h$&$K$J$j$^$7$?(B
  $BITI,MW$J(BDB$B%N!<%I$K(Bparse/bind$B%a%C%;!<%8$,Aw$i$l$J$/$J$j%m%C%/6%9g$,8:$j$^$7$?(B
  $BITI,MW$JFbIt%H%i%s%6%/%7%g%s$N5/F0$,$J$/$J$j!"%*!<%P%X%C%I$,7Z8:$7$F$$$^$9(B
  $B0l;~%F!<%V%k$r0U<1$;$:$K0BA4$K;H$($k$h$&$K$J$j$^$7$?(B
  $B=q$-9~$_$rH<$&4X?t8F$S=P$7$r9T$J$&(BSELECT$B$r%^%9%?!<(B(primay)$B$G$N$_
  
  $B%l%W%j%1!<%7%g%s%b!<%I$K$*$$$F$b!"=q$-9~$_$rH<$&4X?t8F$S=P$7$r9T$J$&(BSELECT$B$rIi2YJ,;6$9$k$+$I$&$+$N@)8f$G$-$k$h$&$K$J$k$J$I$N2~NI$,2C$($i$l$F$$$^$9!#(B
  
  $B?75!G=(B
  
  PostgreSQL 9.0$B$N?75!G=$G$"$k(BStreaming Replication/Hot Standby(SR+HS)$B9=@.$KBP1~$7$^$7$?(B(Tatsuo, Kitagawa)$B!#(B pgpool-II$B$O4pK\E*$K$O(Bmaster/slave mode$B$H$7$FF0:n$7$^$9$,!"$=$N:]$K(B "master_slave_sub_mode" $B$H$$$&?7$7$$@_Dj9`L\$K(B"stream"$B$r@_Dj$9$k$3$H$K$h$j!"(BSR+HS$B9=@.$K:GE,$JF0:n$r$7$^$9!#(B $B$?$H$($P!"99?7%/%(%j$O(BPrimary$B%5!<%P$K$N$_Aw?.$7!"(BSELECT$B$O(BPrimary$B$H(BStandby$B%5!<%P$KIi2YJ,;6$9$k$3$H$,2DG=$G$9!#(B $B$=$N$[$+!"(BStandby$B%5!<%P$r%*%s%i%$%s%j%+%P%j$GI|5l$7$?$j!"(BPrimary$B$H(BStandby$B$N%l%W%j%1!<%7%g%sF14|$r4F;k$7!"CY$l$,Bg$-$$$h$&$J$i(BPrimary$B$K$N$_(BSELECT$B$rAw?.$5$;$k$h$&$K$9$k$3$H$b2DG=$G$9!#(B $B>\:Y$O(BStreaming Replication$B$X$NBP1~(B"$B$r$4Mw2<$5$$!#(B
  
  $B%*%s%i%$%s%j%+%P%j$,(BStreaming Replication$BBP1~$GF0:n$7$F$$$k(Bmaster/slave$B%b!<%I$KBP1~$7$^$7$?(B(Tatsuo)
  Streaming Replication$B%b!<%IMQ$N?7$7$$@_Dj9`L\(B "delay_threshold" $B$,DI2C$5$l!"%l%W%j%1!<%7%g%s$NCY$l$,4F;k$G$-$k$h$&$K$J$j$^$7$?!#(B $BCY1d$,B?$$>l9g$K$O!"Ii2YJ,;6$7$J$$$h$&$K$9$k$3$H$,$G$-$^$9(B(Tatsuo)
  show pool_status$B$G!"(BStreaming Replication$B$K$*$1$k%l%W%j%1!<%7%g%s$NCY1d$,3NG'$G$-$k$h$&$K$J$j$^$7$?(B(Tatsuo)
  Streaming Replication$B$K$*$1$k%l%W%j%1!<%7%g%s$NCY1d$N%m%0$r@)8f$9$k?7$7$$@_Dj9`L\(B"log_standby_delay"$B$,DI2C$5$l$^$7$?(B(Tatsuo)
  
  insert_lock$B$,M-8z$G!"%F!<%V%k$K%7%j%"%k7?$,4^$^$l$F$$$k>l9g!"%F!<%V%k%m%C%/$G$O$J$/!"3:Ev%7!<%1%s%9$r9T%m%C%/$9$k$h$&$K$7$^$7$?!#(B $B0JA0$O%F!<%V%k%m%C%/$r$7$F$$$^$7$?$,!"(Bauto vacuum$B$H%m%C%/$,>WFM$7$?$j$7$F@-G=$,Dc2<$9$kLdBj$,$"$j$^$7$?(B(Tatsuo)
  $B?7$7$$(B"SHOW"$B%3%^%s%I$,DI2C$5$l$^$7$?!#$9$J$o$A!"(Bpool_nodes, pool_processes, pool_pools, pool_version$B$G$9(B(Guillaume Lelarge)
  pcp_proc_info$B%3%^%s%I$N=PNO7k2L$K!"(BPostgreSQL$B%P%C%/%(%s%I%W%m%;%9$N%W%m%;%9(BID$B$H%U%m%s%H%(%s%I$+$i$N@\B3$,$"$k$+$I$&$+$,DI2C$5$l$^$7$?(B(Tatsuo)
  $B4X?t8F$S=P$7$rH<$&(BSELECT$B$r@)8f$9$k@_Dj9`L\(Bwhite_function_list$B$H(Bback_function_list$B$,DI2C$5$l$^$7$?(B(Tatsuo)
  $B%^%9%?!<%9%l!<%V%b!<%I$K$*$$$F!"%7%9%F%`%+%?%m%0$r8!:w$9$k(BSELECT$B$O!"@09g@-$rJ]$D$?$a$K>o$K%^%9%?!<(B(primary)$B$G$B%^%9%?!<%9%l!<%V%b!<%I$K$*$$$F!"0l;~%F!<%V%k$r8!:w$9$k(BSELECT$B$O!"@09g@-$rJ]$D$?$a$K>o$K%^%9%?!<(B(primary)$B$G$B%^%9%?%9%l!<%V%b!<%I$G!"L@<(E*$J%H%i%s%6%/%7%g%sFb$Ge$7$F$$$^$9(B(Tatsuo)
  $B%^%9%?%9%l!<%V%b!<%I$G!"L@<(E*$J%H%i%s%6%/%7%g%sFb$G$B%^%9%?%9%l!<%V%b!<%I$G!"I,MW$J(BDB$B%N!<%I$K$N$_%3%^%s%I$,Aw$i$l$k$h$&$K$J$j$^$7$?!#(B $B$3$l$K$h$j!"$?$H$($P%Q!<%9%3%^%s%I$,ITI,MW$J(BDB$B%N!<%I$K$*$$$F$b%m%C%/$rpgpool$B$N5/F0;~$K!"%9%F!<%?%9%U%!%$%k$rL5;k$9$k%*%W%7%g%s$,DI2C$5$l$^$7$?(B(Tatsuo)
  PostgreSQL 9.0$B$N(BVACUUM$B$N?7$7$$=q<0$r(Bpgpool-II$B$N%Q!<%5$,%5%]!<%H$7$^$7$?(B(Tatsuo)
  $B%U%'%$%k%*!<%P(B/$B%U%'%$%k%P%C%/%3%^%s%I$G!"(B"%H"$B$H$$$&FC$rI=$7$^$9(B(Tatsuo)
  failover_if_affected_tuples_mismatch $B$H$$$&@_Dj9`L\$,DI2C$5$l$^$7$?(B(Tatsuo) $B=>Mh!"%l%W%j%1!<%7%g%s%b!<%I$G(BINSERT/UPDATE/DELETE$B$N7k2L9T?t$,0[$J$k$H!"%H%i%s%6%/%7%g%s$r%"%\!<%H$7$F%;%C%7%g%s$r6/@)@ZCG$7$F$$$^$7$?!#(B failover_if_affected_tuples_mismatch $B$r(B true$B$K@_Dj$9$k$H!"$3$N8=>]$,5/$-$?$H$-$K!"IT0lCW$N$"$C$?(BDB$B%N!<%I$r@Z$jJ|$7$F=LB`1?E>$KF~$k$h$&$K$J$j$^$9!#(B
  $B%l%W%j%1!<%7%g%s%b!<%I$G(BDB$B%N!<%I4V$G(BINSERT/UPDATE/DELETE$B$N7k2L9T?t$NIT0lCW$,8!=P$5$l$?:]$K!"3F(BDB$B%N!<%I$K$*$1$k7k2L9T?t$,%m%0$K5-O?$5$l$k$h$&$K$J$j$^$7$?(B(Tatsuo)
  $B%l%W%j%1!<%7%g%s%b!<%I$H%^%9%?%9%l!<%V%b!<%I$G!"(Bmd5$BG'>Z$,%5%]!<%H$5$l$^$7$?(B(Tatsuo)
  $B%*%s%i%$%s%j%+%P%j$G!"6/@)E*$K%U%m%s%H%(%s%I$X$N@\B3$r@ZCG$7$FD>$A$K%;%+%s%I%9%F!<%8$KF~$k$3$H$,$G$-$k$h$&$K$J$j$^$7$?!#$=$N$?$a$K$O!"(Bclient_idle_limit_in_recovery $B$K(B -1 $B$r@_Dj$7$^$9(B(Tatsuo)
  RAW$B%b!<%I$K$*$$$F!"(BDB$B%N!<%I$,(B1$B8D$@$1$7$+B8:_$7$J$$>uBV$G(BDB$B$,%(%i!<$r5/$7$?$?$a$K(BDB$B%N!<%I$r@Z$jJ|$7$?$"$H$G(BDB$B%N!<%I$,2sI|$7$?>l9g$K!"(Bpgpool-II$B$r:F5/F0$9$k$3$H$K$J$7$K(BDB$B%N!<%I$rMxMQ$G$-$k$h$&$K$J$j$^$7$?(B(Tatsuo)
  pcp$B%3%^%s%I$K$*$$$F!"%m%s%0%*%W%7%g%s$,%5%]!<%H$5$l$^$7$?(B(Guillaume Lelarge)
  debug_level $B$H$$$&@_Dj9`L\$,DI2C$5$l!"(Bpgpool.conf$B$N:FFI$_9~$_$K$h$C$F%G%P%C%0%a%C%;!<%8$N=PNO$r%*%s!?%*%U$G$-$k$h$&$K$J$j$^$7$?(B(Tatsuo)
  pgpool.conf$B$G!"(Bpostgresql.conf$B$HF1$8??56CMI=8=$,MxMQ$G$-$k$h$&$K$J$j$^$7$?!#=>Mh$O!"(Btrue/false, 1/0$B$7$+;H$($^$;$s$G$7$?(B(Kitagawa)
  $B%*%s%i%$%s%j%+%P%j$N%;%+%s%I%9%F!<%8$r$h$j0BA4$K$B0[$J$k%9%-!<%^$KF1$8L>A0$N%F!<%V%k$,B8:_$9$k>l9g$K5/$-$kIT6q9g$r2sHr$9$k$?$a$K!"(BC$B8@8l4X?t(Bpgpool_regclass$B$rDI2C$7$^$7$?(B(Tatsuo)
  
  $B8_49@-$N$J$$JQ99(B
  
  replicate_select$B$H(Bload_balance_mode$B$r6&$K(Btrue$B$K@_Dj$7$?>l9g!"%H%i%s%6%/%7%g%s%V%m%C%/$N30B&$G$&$h$&$K$J$j$^$7$?!#0JA0$O!"(Bload_balance_mode$B$K=>$&$h$&$K$J$C$F$$$^$7$?!#$b$7%/%i%$%"%s%H$,$3$NF0:n$rMxMQ$7$F$$$k>l9g$O!"(Breplicate_select$B$r(Bfalse$B$K$7$F(Bback_function_list$B$r@_Dj$9$k$3$H$GF1$8F0:n$r
  
  $B%P%0=$@5(B
  
  $B7?$,;~9o%G!<%?0J30$NNs$N>l9g!"%G%U%)%k%HCM$K(Bnow()$B$,4^$^$l$F$$$F$b=q$-49$($r9T$J$o$J$$$h$&$K$7$^$7$?!#(B $B:#$^$G$OL5>r7o$K=q$-49$($r9T$J$C$F$$$?$?$a!"=q$-49$($N7k2L!"(BINSERT$BJ8$J$I$,%(%i!<$K$J$C$F$$$^$7$?(B(Tatsuo)
  $B%?%$%`%9%?%s%W$N=q$-49$(=hM}BP>]$H$J$k%F!<%V%k$N%9%-!<%^$,L5;k$5$l$J$$$h$&$K$7$^$7$?!#(B $B$?$@$7!"$3$N5!G=$rM-8z$K$9$k$?$a$K$O!"IUB0$N%f!<%6Dj5A4X?t(B"pgpool_regclass"$B$N%$%s%9%H!<%k$,I,MW$G$9!#(B $B$3$N4X?t$,%$%s%9%H!<%k$5$l$F$$$J$$>l9g$O!"0MA3$H$7$F%9%-!<%^$,L5;k$5$l$F$7$^$$$^$9(B(Tatsuo)
  pcp$B%3%^%s%I$N%?%$%`%"%&%H$N07$$$K$*$1$k%P%0$,=$@5$5$l$^$7$?(B(Tatsuo)
  SSL$B$,M-8z$J>uBV$G!"BgNL$N%G!<%?DL?.$,5/$k$H%O%s%0$9$kLdBj$,=$@5$5$l$^$7$?(B(Tatsuo)
  DB$B%N!<%I$,(B1$B8D$@$1$7$+B8:_$7$J$$>uBV$G(BDB$B$,%(%i!<$r5/$7$?$?:]$K!"4V0c$C$?(BDB$B%N!<%I$,%U%'%$%k%*!<%P$9$k%P%0$r=$@5$7$^$7$?(B(Tatsuo)
  $B%*%s%i%$%s%j%+%P%j;~$N(Bpostmaster$B$N5/F0%A%'%C%/$K$*$1$k%P%0$r=$@5$7$^$7$?!#(B $B:#$^$G$O(Bpostmaster$B$X$N:G=i$N@\B3$,<:GT$9$k$H!"@\B3$rL58B$K7+$jJV$9$h$&$K$J$C$F$$$^$7$?(B(Tatsuo)
  
  2.3.3 (tomiteboshi) 2010/04/23
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(B2.3.2.2 $B0JA0$N?'!9$J%P%0$,=$@5$5$l$F$$$^$9!#(B
  
  $B8_49@-$N$J$$JQ99(B
  
  $B$3$N%P!<%8%g%s$+$i!"(Bpgpool $B$,0JA0$h$jB?$/$N6&M-%a%b%j$r;H$&$h$&$K$J$C$?$N$GCm0U$7$F$/$@$5$$!#(B $B$3$l$K$h$kLdBj$,(B pgpool $B$N5/F0;~$KH/@8$7$?>l9g$O!"(Bpgpool $B$N%m%0$r8+$F$/$@$5$$!#(B "could not create shared memory segment: Cannot allocate memory" $B$H$$$C$?%a%C%;!<%8$,$"$l$P!"%7%9%F%`$N6&M-%a%b%j$rA}$d$7$F$/$@$5$$!#(B
  
  $B%Q%i%l%k%b!<%I$,!"%l%W%j%1!<%7%g%s%b!<%I$+%m!<%I%P%i%s%9%b!<%I$,M-8z$G$J$$$H;H$($J$$$h$&$K$J$j$^$7$?!#(B pgpool-II $B$G$O$:$C$H!"%l%W%j%1!<%7%g%s%b!<%I$+%m!<%I%P%i%s%9%b!<%I$,M-8z$G$J$$$H$-%Q%i%l%k%b!<%I$O@5$7$/F0:n$7$F$$$^$;$s$G$7$?!#(B(Kitagawa)
  
  insert_lock $B$N%G%U%)%k%HCM$r(B false $B$KJQ99$7$^$7$?!#$3$l$O!"%^%9%?!&%9%l!<%V%b!<%I$G$O(B true $B$K$7$F$bL50UL#$J$?$a$G$9!#(B Fujii Masao $B$5$s$N;XE&$K$h$j=$@5$7$^$7$?!#(B(Tatsuo)
  
  $B?7$7$/DI2C$7$?%I%-%e%a%s%H(B
  
  README.online-recovery $B$rDI2C$7$^$7$?!#$3$N%I%-%e%a%s%H$K$O!"%*%s%i%$%s%j%+%P%j$NFbItE*$J$3$H$,=q$$$F$"$j$^$9!#(B
  
  $B%P%0=$@5(B
  
  $B;R%W%m%;%9$,(B segfault $B$r5/$3$9(B pgpool-II 1.0 $B$+$iD9$$4VB8:_$7$?%P%0$r=$@5$7$^$7$?!#(B $B$3$l$O!"?F%W%m%;%9$,(B shmem $B%5%$%:$N7W;;$r4V0c$($F$$$?$3$H$K5/0x$7$^$9!#%P%02r@O(B(Kitagawa)$B!"%Q%C%A:n@.(B(Tatsuo)
  
  $B%I%-%e%a%s%H$K%Q%i%l%k%b!<%IMQ$N0J2<$N@)Ls$rDI5-$7$^$7$?!#(B(Kitagawa)
  
  - NATURAL JOIN $B$O;H$($^$;$s!#(B
  
  - USING $B6g$,!"%/%(%j=q$-49$(=hM}$K$h$C$F(B ON $B6g$KJQ49$5$l$^$9!#(B
  
  $B%Q%i%l%k%b!<%I$N$H$-!"(BUSING $B6g$r4^$`(B JOIN $B9=J8$N=q$-49$($GH/@8$9$k2DG=@-$,$"$C$?%/%i%C%7%e$r=$@5$7$^$7$?!#(B(Kitagawa)
  $B$3$N=$@5$K$h$j!"0J2<$N$h$&$J(B JOIN $B9=J8$,;H$($k$h$&$K$J$j$^$9!#(B
  $BNc!'(B
  SELECT * FROM a JOIN b USING (aid) JOIN c USING (cid); SELECT * FROM a JOIN b USING (aid) JOIN c USING (cid) JOIN d USING
  
  $B%Q%i%l%k%/%(%j$G!"J,;6%-!
  SimpleForwardToBackend() $B$r=$@5$7$^$7$?!#(B $B$3$l$K$h$j!"3HD%%W%m%H%3%k$r;H$C$?%/%i%$%"%s%H$,(B bind $B%(%i!<$N$h$&$J%(%i!<$rH/@8$5$;$?$H$-$K!"(B pgpool $B$,%P%C%/%(%s%I$N1~Ez$rBT$AB3$1$J$/$J$j$^$9!#(B $B$3$N%P%0$O!"%^%9%?!&%9%l!<%V%b!<%I!"(Braw $B%b!<%I!"%3%M%/%7%g%s%W!<%k%b!<%I$GH/@8$7$F$$$^$7$?!#(B $B$3$l$r=$@5$7$?$3$H$K$h$C$F!"%3%^%s%I$,%(%i!<$K$J$C$?$"$H!"%(%i!<$r2sI|$5$;$k$?$a$K(B SYNC $B%a%C%;!<%8$rAw$k$h$&$K$J$j$^$9!#(B(Kitagawa)
  
  select() $B$r
  connect_inet_domain_socket_by_port/connect_unix_domain_socket_by_port $B$,(B SIGTERM/SIGINT/SIGQUIT $B%7%0%J%k$r(B $B
  "kind mismatch" $B$H$$$&%(%i!<%a%C%;!<%8$r@8@.$9$k:]$K%/%i%C%7%e$9$k2DG=@-$,$"$C$?$N$G!"$3$l$r=$@5$7$^$7$?!#(B $B0JA0$OLdBj$J$+$C$?$N$G$9$,!"(B2.3.2$B$G%(%s%P%0$7$^$7$?!#(B(Tatsuo)
  
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  2.3.2.1 (tomiteboshi) 2010/02/11
  
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  2.3.2 (tomiteboshi) 2010/02/07
  
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  2.3.1 (tomiteboshi) 2009/12/18
  
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  2.3 (tomiteboshi) 2009/12/07
  
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  2.2.6 (urukiboshi) 2009/12/01
  
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  2.2.5 (urukiboshi) 2009/10/4
  
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  2.2.4 (urukiboshi) 2009/8/24
  
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  $B%P%0=$@5(B
  
  pgpool-II 2.2.2$B$GF~$C$F$7$^$C$?%P%0$r=$@5$7$^$7$?!#%U%m%s%H%(%s%I$,%"%\!<%H$9$k%?%$%_%s%0$K$h$C$F$O!"0J8eFbIt>uBV$,%j%;%C%H$5$l$:!"pgpool-II 2.2.3$B$G%P!<%8%g%s(B2$B%W%m%H%3%k$N%/%i%$%"%s%H$,F0$+$J$/$J$C$F$7$^$C$F$$$?$N$r=$@5$7$^$7$?!#(B $B$^$?!";~4V$N$+$+$k%/%(%j$rBT$C$F$$$k4V$K%U%m%s%H%(%s%I$,0[>o=*N;$7$?$3$H$r8!CN$9$k4V3V$r(B1$BIC$+$i(B30$BIC$KJQ99$7$^$7$?!#$3$N%A%'%C%/$O!"(B2.2.4$B$G$O%W%m%H%3%k%P!<%8%g%s$,(B3$B$N$H$-$N$_M-8z$G$9(B(Tatsuo)
  $B;R%W%m%;%9$r5/F0$9$kA0$K%7%0%J%k$N%V%m%C%/$d%O%s%I%i$N@_Dj$r9T$J$&$h$&$K$7$^$7$?!#(B $B$3$l$O!"(Bpgpool-II$B$r5/F0$7$?D>8e$K%U%'%$%k%*!<%P$J$I$N;v>]$,H/@8$7$F;R%W%m%;%9$+$i?F%W%m%;%9$K%7%0%J%k$,Aw$i$l$k$H!"(Bpgpool-II$B$N?F%W%m%;%9$,;`$s$G$7$^$&$3$H$,$"$k$+$i$G$9(B(Tatsuo)
  
  2.2.3 (urukiboshi) 2009/8/11
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(B2.2.2$B0JA0$N?'!9$J%P%0$,=$@5$5$l$F$$$^$9!#(B
  
  $B%P%0=$@5(B
  
  $B%P%C%/%(%s%I$K?7$7$$%3%M%/%7%g%s$rD%$k:]$K!"%P%C%/%(%s%I$N0l$D$,>c32$r5/$7$F$$$k%1!<%9$G!"8e=hM}$NCf$G(Bpgpool-II$B$N;R%W%m%;%9$,Mn$A$k$3$H$,$"$k%P%0$r=$@5$7$^$7$?(B(Tatsuo)
  $B%Q%i%l%k%/%(%j$N%P%0$r=$@5$7$^$7$?(B(Yoshiharu Mori)
  $B3HD%%W%m%H%3%k$N>l9g$K$b%(%i!<%a%C%;!<%8$NCf$G:G8e$K;HMQ$7$?%/%(%j$,I=<($G$-$k$h$&$K$J$j$^$7$?(B(Akio Ishida)
  kind mismatch error$B%a%C%;!<%8$N:n@.$G!"%a%C%;!<%8FbMF$,2u$l$k$3$H$,$"$k%P%0$r=$@5$7$^$7$?(B(Tatsuo, Akio Ishida)
  $B%P%C%/%(%s%I$X$N@\B35-=R;R$N;2>H%?%$%_%s%0$K$h$C$F$O(Bpgpool-II$B$N;R%W%m%;%9$,Mn$A$k$3$H$,$"$k%P%0$r=$@5$7$^$7$?(B(Tatsuo)$B!#(B
  pool_error$B$d(Bpool_log$B$N0z?t$,4V0c$C$F$$$?8D=j$r=$@5$7$^$7$?(B(Akio Ishida)$B!#(B
  statement_timeout$B$N%?%$%`%"%&%H$K$h$k%(%i!<=hM}$r2~NI$7$^$7$?!#$7$^$7$?!#$^$?!"(Bmaster$B$@$1$,(Bstatement_timeout$B$rJV$7$?>l9g$K$bBP1~$G$-$k$h$&$K$7$^$7$?!#0JA0$O(Bkind mismatch$B%(%i!<$K$J$C$F$$$^$7$?(B(Tatsuo)$B!#(B (master$B0J30$,(Bstatement_timeout$B$rJV$5$J$$%1!<%9$G$O(Bkind mismatch$B%(%i!<$K$J$j$^$9(B)$B!#(B
  health check$B$r$h$j6/2=$7!"(Bpostmaster$B$,(BSIGSTOP$B$G;_$C$F$7$^$C$F$$$k>l9g$b>c328!CN$G$-$k$h$&$K$7$^$7$?!#(B
  $B%P%C%/%(%s%I$K(BSQL$B$rEj$2!"$=$N1~Ez$rBT$C$F$$$k4V$K%/%i%$%"%s%H$,(Bpgpool$B$KBP$9$k%3%M%/%7%g%s$r@ZCG$7$?$3$H$,8!=P$G$-$k$h$&$K$J$j$^$7$?!#(B $B$?$H$($P!"(BWeb$B%"%W%j%1!<%7%g%s$G$O(BDB$B$KBP$7$F%j%/%(%9%H$rEj$2$F!"1~Ez$,$J$$$H%-%c%s%;%k$9$k$h$&$J$3$H$,IQHK$K5/$j$^$9!#(B $B$3$N>l9g!":#$^$G$O(Bpgpool$B$d(BPostgreSQL$B$N%W%m%;%9$,;D$C$F$7$^$$!"F1;~@\B3?t$,8O3i$7$?$j!"%m%C%/$ru67$,8!=P$G$-$k$h$&$K$J$C$?$@$1$G$J$/!"(BSQL$B$N1~EzBT$A$N4V$K%/%i%$%"%s%H$,%3%M%/%7%g%s$r@ZCG$7$?:]$K$O!"(BSQL$B%3%^%s%I$N%-%c%s%;%k$r(Bpgpool$B$,9T$J$C$F!"%m%C%/BT$A$J$I$N%P%C%/%(%s%I%W%m%;%9$,;D$k$N$rKI$0$3$H$,$G$-$k$h$&$K$J$j$^$7$?(B(Tatsuo)$B!#(B
  $B0z?t$J$7$N(BCLUSTER$B%3%^%s%I$O%H%i%s%6%/%7%g%s$NCf$G$O$BJ#?t$N%W%j%Z%"%I%9%F!<%H%a%s%H$r;H$C$F$$$k:]$K!"%;%C%7%g%s$N=*$j$G$=$N0lIt$@$1$,2rJ|$5$l$k%P%0$r=$@5$7$^$7$?(B(Akio Ishida) $B!#(B
  sql/pgpool-recovery/pgpool-recovery.c$B$,(BPostgreSQL 8.4$B$G%3%s%Q%$%k$G$-$k$h$&$K$7$^$7$?(B(Tatsuo)$B!#(B
  $B3HD%%W%m%H%3%k$r;H$C$F$$$k>l9g$K!"%/%i%$%"%s%H$H(Bpgpool$B$N4V$G$*8_$$$KBT$A>uBV$K$J$C$F$7$^$&$3$H$,$"$k%P%0$r=$@5$7$^$7$?(B(Gavin Sherry)$B!#(B
  COPY FROM$B$rl9g$K!"%P%C%/%(%s%I%W%m%;%9$,;D$C$F$7$^$&%P%0$r=$@5$7$^$7$?(B(Tatsuo)$B!#(B
  
  2.2.2 (urukiboshi) 2009/5/5
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(B2.2.1$B0JA0$N?'!9$J%P%0$,=$@5$5$l$F$$$^$9!#(B $B$H$j$o$1!"(Bpgpool$B$,%/%i%$%"%s%H$H$N4V$G%G!<%?$N$d$jl9g$K5/$k2DG=@-$,$"$j$^$9!#(B $B$3$N%P%0$O2a5n$N$9$Y$F$N(Bpgpool$B$KB8:_$7$F$$$^$9!#(B
  
  $B%P%0=$@5(B
  
  $B%U%m%s%H%(%s%I$K(Bpgpool$B$,%G!<%?$rAw?.$9$k:]$N%(%i!<$rL5;k$9$k$h$&$K$7$^$7$?!#$3$l$K$h$C$F!"%P%C%/%(%s%I$H$N4V$GI,MW$J=hM}$,CfCG$5$l$J$$$h$&$K$J$j!"%P%C%/%(%s%I$N4V$G%G!<%?$N0l4S@-$,$J$/$J$kLdBj$,2sHr$5$l$k$h$&$K$J$j$^$7$?(B(Tatsuo)$B!#(B
  $B%^%9%?!<%9%l!<%V%b!<%I$K4X$9$k(B2.2.1$B$N=$@5$N:]$K@8$8$?%P%0$r=$@5$7$^$7$?!#%W%j%Z%"%I%9%F!<%H%a%s%H$r;H$$2s$9$H%O%s%0%"%C%W$9$k2DG=@-$,$"$j$^$7$?(B(Toshihiro)$B!#(B
  SQL$B%3%^%s%I$N(BPREPARE$B$H%W%m%H%3%k%l%Y%k$N(BEXECUTE$B$,:.:_$9$k$H%P%C%/%(%s%I$,%/%i%C%7%e$9$k%P%0$r=$@5$7$^$7$?!#$3$N%P%0$,!"(B2.2$B$G;}$A9~$^$l$?$b$N$G$9(B(Tatsuo)$B!#(B
  $B%3%M%/%7%g%s$N%j%;%C%HMQ$NLd9g$o$;$rl9g$K!"(BPostgreSQL$B$N%m%0$K(B"unexpected EOF on client connection"$B$,5-O?$5$l$kLdBj$r=$@5$7$^$7$?(B(Tatsuo)$B!#(B
  
  2.2.1 (urukiboshi) 2009/4/25
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(B2.2$B$N?'!9$J%P%0$,=$@5$5$l$F$$$^$9!#(B
  
  $B%P%0=$@5(B
  
  master/slave$B%b!<%I$G!"(BDEALLOCATE$B$,<:GT$9$k$3$H$,$"$kLdBj$r=$@5$7$^$7$?!#(B $B$3$l$O!":G=i$N(BPREPARE$B$,(Bslave$B$Gpgpool.spec$B$J$I$r(B2.2$BBP1~$K$7$^$7$?(B(Devrim)
  Version 2$B%W%m%H%3%k$G$O(Binsert_lock$B$,L5;k$5$l$k$h$&$K$7$^$7$?(B(Tatsuo)
  $B%Q%i%a!<%?JQ99%a%C%;!<%8$,%P%C%/%(%s%I$+$iFO$/EY$K%m%0$,=PNO$5$l$k$N$r;_$a$^$7$?(B(Tatsuo)
  $B%I%-%e%a%s%H$GDI2C$7K:$l$?%U%!%$%k$rEPO?$7$^$7$?(B(Tatsuo)
  
  2.2 (urukiboshi) 2009/2/28
  
  $B35MW(B
  
  $B$3$N%P!<%8%g%s$G$O!"(BSERIAL$B%G!<%?$N07$$$H%*%s%i%$%s%j%+%P%j$K2~NI$,9T$J$o$l$F$$$^$9!#(B $B$^$?!"%H%i%s%6%/%7%g%sJ,N%%l%Y%k$,%7%j%"%i%$%6%V%k$N>l9g$K!"(BDB$B%N!<%I4V$G%G!<%?$N0l4S@-$,$J$/$J$k2DG=@-$,$"$kLdBj!"%/%(%j$N%-%c%s%;%k$,$G$-$J$$LdBj$,=$@5$5$l$^$7$?!#(B
  
  $B?75!G=(B
  
  insert_lock$B$,M-8z$J>l9g!"(BSERIAL$B7?$r;}$D%F!<%V%k$@$1$,%m%C%/$5$l$k$h$&$K$J$j$^$7$?(B(Tatsuo)$B!#(B
  $B@_Dj9`L\(Bclient_idle_limit_in_recovery$B$,DI2C$5$l$^$7$?!#(B $B%*%s%i%$%s%j%+%P%j$NBh(B2$B%9%F!<%8$G%/%i%$%"%s%H$,%"%$%I%k$N$^$^5o:B$k$3$H$K$h$C$F!"(B $B%*%s%i%$%s%j%+%P%j$,?J9T$7$J$/$J$k$3$H$rKI$0$3$H$,$G$-$^$9(B(Tatsuo)$B!#(B
  $B@_Dj9`L\(Bpid_file_name$B$,DI2C$5$l$^$7$?!#$3$l$O!"(Bpgpool-II$B$N(Bpid$B%U%!%$%k$r;XDj$7$^$9!#(B $B$3$l$K$h$j!"(Blogdir$B$O;HMQ$5$l$J$/$J$j$^$7$?(B(Tatsuo)$B!#(B
  DECLARE, FETCH, CLOSE$B$GIi2YJ,;6$5$l$k$h$&$K$J$j$^$7$?(B(Tatsuo)$B!#(B
  pcp$B%3%^%s%I$K%G%P%C%0%*%W%7%g%s(B(-d)$B$,DI2C$5$l$^$7$?(B(Jun Kuriyama)$B!#(B
  "kind mismatch"$B%(%i!<$N:]$K!"860x$H$J$C$?%/%(%j$rI=<($9$k$h$&$K$7$^$7$?(B(Tatsuo)$B!#(B
  
  $B8_49@-(B
  
  $B%U%'%$%k%*!<%P;~$KI,$:(Bpgpool$B$N;R%W%m%;%9$r:F5/F0$9$k$h$&$K$7$^$7$?!#(B $B$3$N7k2L!"%U%'%$%k%*!<%P;~$K$OI,$:(Bpgpool$B$X$N%;%C%7%g%s$,0lC<@Z$l$k$3$H$K$J$j$^$9!#(B $B$3$&$7$J$$$H!"%M%C%H%o!<%/%1!<%V%kH4$1$J$I$N:]$K!"(B TCP/IP$B$N%l%$%d$G:FAw$,9T$J$o$l!"D9$$;~4V$=$N$^$^$K$J$C$F$7$^$&$3$H$,(B $B$"$k$+$i$G$9(B(Tatsuo)$B!#(B
  $B@_Dj9`L\(Blogdir$B$O;H$o$l$J$/$J$j$^$7$?!#Be$j$K!"(Bpid_file_name$B$r;H$C$F$/$@$5$$(B(Tatsuo)$B!#(B
  insert_lock$B$N%G%U%)%k%HCM$,(Btrue$B$K$J$j$^$7$?(B(Tatsuo)$B!#(B
  
  $B%P%0=$@5(B
  
  pgpool$B$,%G!<%b%s%b!<%I$G5/F0$5$l$k:]$K!"$9$Y$F$N%U%!%$%k%G%#%9%/%j%W%?$r(B $BJD$8$k$h$&$K$7$^$7$?!#$3$&$7$J$$$H!"(BpgpoolAdmin$B$+$i5/F0$5$l$?:]$K(B apache$B$N%=%1%C%H%U%!%$%k$r0z$-7Q$$$G$7$^$$!"(B80$BHV%]!<%H$,(B $B@lM-$5$l$F$7$^$$$^$9(B(Akio Ishida)$B!#(B
  $B%H%i%s%6%/%7%g%s$r%7%j%"%i%$%:$G$-$J$$%(%i!<$,H/@8$7$?$H$-$K!"(B $B$9$Y$F$N(BDB$B%N!<%I$N%H%i%s%6%/%7%g%s$r%"%\!<%H$9$k$h$&$K$7$^$7$?!#(B $B$3$&$7$J$$$H!"(BDB$B%N!<%I$N4V$G%G!<%?$NIT@09g$,5/$-$k$3$H$,$"$j$^$9(B(Tatsuo)$B!#(B $BNc$r<($7$^$9(B(M$B$O%^%9%?!"(BS$B$O%9%l!<%V$r<($7$^$9(B)$B!#(B
  M:S1:BEGIN; M:S2:BEGIN; S:S1:BEGIN; S:S2:BEGIN; M:S1:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; M:S2:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; S:S1:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; S:S2:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; M:S1:UPDATE t1 SET i = i + 1; S:S1:UPDATE t1 SET i = i + 1; M:S2:UPDATE t1 SET i = i + 1; <-- blocked S:S1:COMMIT; M:S1:COMMIT; M:S2:ERROR: could not serialize access due to concurrent update S:S2:UPDATE t1 SET i = i + 1; <-- success in UPDATE and data becomes inconsistent!
  
  raw$B%b!<%I$G(BMD5$BG'>Z$,;H$($k$h$&$K$7$^$7$?!#%I%-%e%a%s%H>e$G$O;H$($k$O$:$G$7$?(B(Tatsuo)$B!#(B
  "SET TRANSACTION ISOLATION LEVEL must be called before any query"$B$N(B $B%(%i!<$,H/@8$7$?>l9g$K(B"kind mimatch"$B%(%i!<$K$J$k$3$H$rKI$0$h$&$K$7$^$7$?(B(Tatsuo)$B!#(B $B0J2<$N%7%J%j%*$GLdBj$,H/@8$7$^$9!#(B
  M:S1:BEGIN; S:S1:BEGIN; M:S1:SELECT 1; <-- only sent to MASTER M:S1:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; S:S1:SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; M: <-- error S: <-- ok since no previous SELECT is sent. kind mismatch error occurs!
  
  FreeBSD$B$K$*$$$F!"(Bps$B$G$N(Bprocess status$B$NI=<($GM>7W$J%9%Z!<%9$,4^$^$l$F$7$^$&$N$r=$@5$7$^$7$?(B(Jun Kuriyama)
  BEGIN;$B$r(B2$BEYB3$1$k$H(Bkind mismatch error$B$,H/@8$9$k$N$r=$@5$7$^$7$?(B(Tatsuo)
  PostgreSQL$B$,$?$/$5$s$N(BDEBUG$B%a%C%;!<%8$r=PNO$9$k>l9g$K!"8m$C$F%(%i!<$H8+$J$9%P%0$r=$@5$7$^$7$?(B(Tatsuo)
  $B%/%(%j$N%-%c%s%;%k$,F0$/$h$&$K$J$j$^$7$?(B(Tatsuo)
  $B%*%s%i%$%s%j%+%P%j$N8e%/%i%$%"%s%H$+$i$N@\B3$rSELECT, INSERT, UPDATE, DELETE$B0J30$N%3%^%s%I$G$bI,MW$J$i$P%H%i%s%6%/%7%g%s%V%m%C%/$NFbB&$G$B%*%s%i%$%s%j%+%P%j8e!"(Bpgpool-II$B$N;R%W%m%;%9$,%/%i%C%7%e$9$k$3$H$,$"$k%P%0$r=$@5$7$^$7$?!#(B $B$3$l$O!"%*%s%i%$%s%j%+%P%j$N8e!"?7$7$/%"%?%C%A$5$l$?%N!<%I$K@\B3$,$J$$$N$K!"$=$N%N!<%I$K;R%W%m%;%9$,=*N;;~$K=*N;%a%C%;!<%8$r%P%C%/%(%s%I$KAw?.$7$h$&$H$7$F5/$C$F$$$^$7$?(B(Tatsuo)
  PostgreSQL$B$,(Bpostgresql.conf$B$r:FFI$_9~$_$7$?:]$K(Bpgpool$B$,%(%i!<$r8!=P$7$F$7$^$&%P%0$r=$@5$7$^$7$?!#(B $B$3$l$O!"(BPostgreSQL$B$,!J$?$V$s!K%I%-%e%a%s%H$K=q$+$l$F$$$J$$%?%$%_%s%0$G!V%Q%i%a!<%?JQ99!W%Q%1%C%H$rAw?.$7$F$/$k$?$a$K5/$j!"=$@5$O$=$N$3$H$KBP1~$7$?$b$N$G$9(B(Tatsuo)
  
  2.1 (inamiboshi) 2008/7/25
  
  $B?75!G=(B
  
  failover_command $B$H(B failback_command $B$K!"?7$7$$%^%9%?%N!<%I(B ID $B$rI=$9(B '%m' $B$r%5%]!<%H$7$^$7$?!#(B(Yoshiyuki)
  failover_command $B$H(B failback_command $B$K!"8E$$%^%9%?%N!<%I(B ID $B$r(B $BI=$9(B '%M' $B$r%5%]!<%H$7$^$7$?!#(B(Yoshiyuki)
  $B%j%+%P%j$N%?%$%`%"%&%H;~4V$r;XDj$9$k(B recovery_timeout $B%Q%i%a!<(B $B%?$rDI2C$7$^$7$?!#(B(Taiki)
  pg_md5 $B%3%^%s%I$K(B -p $B%*%W%7%g%s$rDI2C$7$^$7$?!#(B(Volkan Yazici, Taiki)
  pgpool -v $B$r
  $B8_49@-(B
  
  pgpool_recovery $B$H(B pgpool_remote_start $B4X?t$O%9!<%Q!<%f!<%6$N$_ raw $B%b!<%I$G%9%?%s%P%$%N!<%I$K$O%3%M%/%7%g%s%W!<%k$r:n@.$7$J$$(B $B$h$&$K$7$^$7$?!#(B(Yoshiyuki)
  replication_timeout $B%Q%i%a!<%?$r:o=|$7$^$7$?!#(B(Yoshiyuki)
  PCP $B%/%i%$%"%s%H%3%^%s%I$N%?%$%`%"%&%H$rL58z$K$7$^$7$?!#(B(Taiki)
  replicate_select = false $B$N>l9g$K!"(BCOPY TO STDOUT $B$r%l%W%j%1!<(B $B%7%g%s$5$;$J$$$h$&$K$7$^$7$?!#(B(Yoshiyuki)
  
  $B=$@5(B
  
  $BA4HL(B
  
  CloseComplete $B%a%C%;!<%8$r $B%a%C%;!<%8E>Aw=hM}$r8zN($h$/$7$^$7$?!#(B(Yoshiyuki)
  Solaris 10 $B$G%3%s%Q%$%k$G$-$k$h$&$K$7$^$7$?!#(B(Yoshiyuki)
  $B%X%k%9%A%'%C%/$H%j%+%P%j$N%m%0=PNO$r2~NI$7$^$7$?!#(B(Tatsuo)
  $BMM!9$J%a%b%j%j!<%/$r=$@5$7$^$7$?!#(B(Yoshiyuki)
  "failed to read kind from frontend" $B$H$$$&%(%i!<%a%C%;!<%8$r(B ERROR$B%l%Y%k$+$i(B LOG $B%l%Y%k$K2<$2$^$7$?!#(B(Yoshiyuki)
  raw $B%b!<%I$G%U%'%$%k%*!<%P$K<:GT$9$kIT6q9g$r=$@5$7$^$7$?!#(B (Taiki)
  $BIT@5$J%N!<%I$rDI2C!&@Z$jN%$7$r9T$&$H%>%s%S%W%m%;%9$,H/@8$9$kIT(B $B6q9g$r=$@5$7$^$7$?!#(B(Yoshiyuki)
  health_check_timeout $B$,@5$7$/F0:n$7$J$$IT6q9g$r=$@5$7$^$7$?!#(B (Kenichi Sawada)
  FreeBSD $B$G(B ps $B%3%^%s%I$N=PNO$,@5$7$/$J$$IT6q9g$r=$@5$7$^$7$?!#(B (ISHIDA Akio)
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  $B3HD%Ld9g$;%W%m%H%3%k$r;H$&$H(B /* REPLICATION */$B$J$I$N%R%s%H6g$,>C$($F(B $B$7$^$&IT6q9g$r=$@5$7$^$7$?!#(B(Yoshiyuki)
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  $B%^%9%?!e$G$N$_uninstall$B$NA0$K$9$Y$F$N%i%s%l%Y%k$+$i(Binit$B%9%/%j%W%H$r:o=|$9$k$h$&$K$7$^$7$?(B(Devrim)
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  $B%^%9%?!
  
  2.2.5 (urukiboshi) 2009/10/4
  
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  $B@\B3$N=*N;=hM}$GL58B%k!<%W$K4Y$k$3$H$,$"$k%P%0$r=$@5$7$^$7$?(B(Xavier Noguer, Tatsuo)
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  2.2.4 (urukiboshi) 2009/8/24
  
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  2.2.3 (urukiboshi) 2009/8/11
  
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  $B0z?t$J$7$N(BCLUSTER$B%3%^%s%I$O%H%i%s%6%/%7%g%s$NCf$G$O$BJ#?t$N%W%j%Z%"%I%9%F!<%H%a%s%H$r;H$C$F$$$k:]$K!"%;%C%7%g%s$N=*$j$G$=$N0lIt$@$1$,2rJ|$5$l$k%P%0$r=$@5$7$^$7$?(B(Akio Ishida) $B!#(B
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  2.2.2 (urukiboshi) 2009/5/5
  
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  2.2.1 (urukiboshi) 2009/4/25
  
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  2.2 (urukiboshi) 2009/2/28
  
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$B%/%i%$%"%s%HG'>Z(B(HBA)$B$N$?$a$N(B pool_hba.conf $B@_DjJ}K!(B

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pgpool-II$B$N5/F0$HDd;_(B

pgpool-II$B$N@_Dj%U%!%$%k$N:FFI$_9~$_(B

SHOW$B%3%^%s%I(B

$B35MW(B

pool_status

pool_nodes

pool_processes

pool_pools

pool_version

$B%*%s%i%$%s%j%+%P%j(B

$B%*%s%i%$%s%j%+%P%j35MW(B

pgpool $B$N@_Dj(B

C $B8@8l4X?t$N%$%s%9%H!<%k(B

$B%j%+%P%j%9%/%j%W%H$NG[CV(B

PITR $B$K$h$k%j%+%P%j(B

pgpool_remote_start

rsync $B$K$h$k%j%+%P%j(B

$B%*%s%i%$%s%j%+%P%j$rMxMQ$7$?(BPostgreSQL$B$N%^%$%J!<%P!<%8%g%s%"%C%W(B

$B%l%W%j%1!<%7%g%s%b!<%I$N>l9g(B

Streaming Replication$B$rMxMQ$7$F$$$k>l9g(B

$B%P%C%/%"%C%W(B

$B%l%W%j%1!<%7%g%s%b!<%I!"%^%9%?!<%9%l!<%V%b!<%I(B

$B%Q%i%l%k%b!<%I(B

$B%7%9%F%`(BDB$B$N%P%C%/%"%C%W(B

pgpool-II$B$NG[CV$K$D$$$F(B

pgpool-HA$B$K$D$$$F(B

$B%H%i%V%k%7%e!<%F%#%s%0(B

$B@)8B;v9`(B

PostgreSQL$B$N5!G=(B

$BG'>Z!&%"%/%;%9@)8fJ}<0(B

$B0l;~%F!<%V%k$N07$$(B

$B%l%W%j%1!<%7%g%s%b!<%I$GCm0U$,I,MW$J4X?t$J$I(B

$B%/%(%j$K$D$$$F(B

$B%^%k%A%P%$%HJ8;z$K$D$$$F(B

$B%^%k%A%9%F!<%H%a%s%H(B

$B3HD%Ld$$9g$o$;%W%m%H%3%k(B

SELECT

INSERT

UPDATE

SELECT ... FOR UPDATE

COPY

ALTER/CREATE TABLE $B$K$D$$$F(B

$B%H%i%s%6%/%7%g%s(B

View/Rule

$B4X?t(B/$B%H%j%,$K$D$$$F(B

Natural Join $B$K$D$$$F(B

USING $B6g$K$D$$$F(B

$B%G%C%I%m%C%/$K$D$$$F(B

$B%9%-!<%^$K$D$$$F(B

$B%F!<%V%kL>!"%+%i%`L>$K$D$$$F(B

pgpool-II$B$H$O(B

pgpool-II$B$N2TF/4D6-(B

pgpool-II$B$N%$%s%9%H!<%k(B

pgpool-II$B$N@_Dj(B

pcp.conf$B$N@_Dj(B

pgpool.conf$B$N@_Dj(B

$B%5%s%W%k%U%!%$%k(B

$B%3%a%s%H$N07$$(B

$B6&DL@_Dj9`L\(B

SSL$B>ZL@=q$N@8@.(B

raw$B%b!<%I$K$$1$k%U%'%$%k%!<%PF0:n$K$D$$$F(B

$B%3%M%/%7%g%s%W!<%k%b!<%I(B

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$B%l%W%j%1!<%7%g%s%b!<%I(B

$B%m!<%I%P%i%s%9$N>r7o$K$D$$$F(B

$B%l%W%j%1!<%7%g%s%b!<%I$K$*$1$k=LB`1?E>$K$D$$$F(B

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$B%^%9%?!<%9%l!<%V%b!<%I(B

Streaming Replication$B$X$NBP1~(B

Streaming Replication$B$G$N%U%'%$%k%*!<%P(B

Streaming Replication$B$G$N%/%(%j?6$jJ,$1(B

Streaming Replication$B$G$N%*%s%i%$%s%j%+%P%j(B

$B%Q%i%l%k%b!<%I(B

$B%7%9%F%`(BDB$B$N=i4|@_Dj(B

dblink$B$N%$%s%9%H!<%k(B

$B%3%M%/%7%g%s?t$N@_Dj(B

$B%G!<%?J,3d%k!<%k$NEPO?(B

$B%l%W%j%1!<%7%g%s%F!<%V%k$N%k!<%kEPO?(B

$B%/%i%$%"%s%HG'>Z(B(HBA)$B$N$?$a$N(B pool_hba.conf $B@_DjJ}K!(B

$B%/%(%j%-%c%C%7%e$N@_DjJ}K!(B

pgpool-II$B$N5/F0$HDd;_(B

pgpool-II$B$N@_Dj%U%!%$%k$N:FFI$_9~$_(B

SHOW$B%3%^%s%I(B

$B35MW(B

$B%*%s%i%$%s%j%+%P%j(B

$B%*%s%i%$%s%j%+%P%j35MW(B

pgpool $B$N@_Dj(B

C $B8@8l4X?t$N%$%s%9%H!<%k(B

$B%j%+%P%j%9%/%j%W%H$NG[CV(B

PITR $B$K$h$k%j%+%P%j(B

rsync $B$K$h$k%j%+%P%j(B

$B%*%s%i%$%s%j%+%P%j$rMxMQ$7$?(BPostgreSQL$B$N%^%$%J!<%P!<%8%g%s%"%C%W(B

$B%l%W%j%1!<%7%g%s%b!<%I$N>l9g(B

Streaming Replication$B$rMxMQ$7$F$$$k>l9g(B

$B%P%C%/%"%C%W(B

$B%l%W%j%1!<%7%g%s%b!<%I!"%^%9%?!<%9%l!<%V%b!<%I(B

$B%Q%i%l%k%b!<%I(B

$B%7%9%F%`(BDB$B$N%P%C%/%"%C%W(B

pgpool-II$B$NG[CV$K$D$$$F(B

pgpool-HA$B$K$D$$$F(B

$B%H%i%V%k%7%e!<%F%#%s%0(B

$B@)8B;v9`(B

PostgreSQL$B$N5!G=(B

$BG'>Z!&%"%/%;%9@)8fJ}<0(B

$B0l;~%F!<%V%k$N07$$(B

$B%l%W%j%1!<%7%g%s%b!<%I$GCm0U$,I,MW$J4X?t$J$I(B

$B%/%(%j$K$D$$$F(B

$B%^%k%A%P%$%HJ8;z$K$D$$$F(B

$B%^%k%A%9%F!<%H%a%s%H(B

$B3HD%Ld$$9g$o$;%W%m%H%3%k(B

ALTER/CREATE TABLE $B$K$D$$$F(B

$B%H%i%s%6%/%7%g%s(B

$B4X?t(B/$B%H%j%,$K$D$$$F(B

Natural Join $B$K$D$$$F(B

USING $B6g$K$D$$$F(B

$B%G%C%I%m%C%/$K$D$$$F(B

$B%9%-!<%^$K$D$$$F(B

$B%F!<%V%kL>!"%+%i%`L>$K$D$$$F(B

$B%7%9%F%`(B DB

$BJ,3d%k!<%k(B

$B%S%k%I$KI,MW$J4D6-(B

$B%/%(%j%-%c%C%7%e(B

$B%j%U%!%l%s%9(B

PCP$B%3%^%s%I%j%U%!%l%s%9(B

PCP$B%3%^%s%I0lMw(B

$B6&DL0z?t(B

$B%3%^%s%I72(B

$B=*N;%9%F!<%?%9(B

$BFbIt>pJs(B

$B%/%(%j=q$-49$((B