<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt">anybody ..... ?<br><div><span><br></span></div><div> </div><div>Regards,<br>Adrian Videanu</div><div><br></div> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Videanu Adrian <videanuadrian@yahoo.com><br> <b><span style="font-weight: bold;">To:</span></b> Yugo Nagata <nagata@sraoss.co.jp> <br><b><span style="font-weight: bold;">Cc:</span></b> "pgpool-general@pgpool.net" <pgpool-general@pgpool.net> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, November
12, 2013 4:46 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [pgpool-general: 2274] Re: pgpool 3.3.1 replicate setup with 3 nodes<br> </font> </div> <div class="y_msg_container"><br><div id="yiv6582051664"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt;">Hi,<br clear="none"><br clear="none">I have updated the scripts with the ones that you provided but I have the same problem.<br clear="none">My pgpool_recovery_pitr.sh script is the same as before, so I suspect that the problem arise from this script. Because after I perform online recovery on one of the nodes, the node that is not involved into online_recovery has the sequence value with 1 unit less than other servers.<br clear="none">So when I perform an insert I get : kind mismatch...<br clear="none"><div><br clear="none"><span></span></div><div style="color:rgb(0, 0,
0);font-size:16px;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;background-color:transparent;font-style:normal;"><span>Example, db = replication_bench :</span></div><div style="color:rgb(0, 0, 0);font-size:16px;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;background-color:transparent;font-style:normal;"><span><br clear="none"></span></div><div style="color:rgb(0, 0, 0);font-size:16px;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;background-color:transparent;font-style:normal;"><span>Initial setup <br clear="none"></span></div><div style="color:rgb(0, 0, 0);font-size:16px;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;background-color:transparent;font-style:normal;"><span>Node1 - sequence1 = 1184</span><br clear="none"><span>Node2 - </span><span><span>sequence</span>1 = 1184</span><br
clear="none"><span>Node3 - </span><span><span>sequence</span>1 = 1184</span></div><div>------------------------------------------------------<br clear="none"><br clear="none">Node 3 has failed.<br clear="none"><br clear="none">------------------------------------------------------<br clear="none">Start online recovery:<br clear="none"><br clear="none">pgpool_recovery_pitr.sh<br clear="none"><br clear="none">+ read i<br clear="none">+ '[' replication_bench '!=' ''
']'<br clear="none">+ psql -p 5432 -c 'SELECT setval(oid, nextval(oid)) FROM pg_class WHERE relkind = '\''S'\''' replication_bench<br clear="none"> setval<br clear="none">--------<br clear="none"> 11084<br clear="none"> 11084<br clear="none">(2 rows)<br clear="none"><br clear="none">-------------------------------------------------------<br clear="none">Node 3 is back online BUT:<br clear="none"><div style="color:rgb(0, 0, 0);font-size:16px;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;background-color:transparent;font-style:normal;"><span>Node1 - sequence1 = 1185</span><br clear="none"><span>Node2 - </span><span><span>sequence</span>1 = 1184</span> <------- Wrong sequence<br clear="none"><span>Node3 - </span><span><span>sequence</span>1 = 1185</span></div><br clear="none">----------------------------------------------------------<br clear="none">insert into ........ =>
kind mismatch among backends.<br clear="none"> <br clear="none"><br clear="none">Hope this is clear the the previous examples<br clear="none"><br clear="none"><br clear="none"></div><div>Regards,<br clear="none">Adrian Videanu</div><div><br clear="none"></div> <div class="yiv6582051664yqt1393182400" id="yiv6582051664yqt76447"><div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Yugo Nagata <nagata@sraoss.co.jp><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Videanu Adrian <videanuadrian@yahoo.com> <br clear="none"><b><span style="font-weight:bold;">Cc:</span></b> "pgpool-general@pgpool.net" <pgpool-general@pgpool.net> <br
clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Monday, November 11, 2013 8:07 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [pgpool-general: 2237] pgpool 3.3.1 replicate setup with 3 nodes<br clear="none"> </font> </div> <div class="yiv6582051664y_msg_container"><br clear="none">Hi,<br clear="none"><br clear="none">On Thu, 7 Nov 2013 06:23:56 -0800 (PST)<br clear="none">Videanu Adrian <<a rel="nofollow" shape="rect" ymailto="mailto:videanuadrian@yahoo.com" target="_blank" href="mailto:videanuadrian@yahoo.com">videanuadrian@yahoo.com</a>> wrote:<br clear="none"><br clear="none">> Hi <br clear="none">> <br clear="none">> <br clear="none">> I have just followed the tutorial, and in the tutorial, the pgpool_remote_start looks like :<br clear="none"><br clear="none">I'm very sorry for confusing you. The manual's sample script is wrong. I'll fix this.<br clear="none"><br clear="none">The
right pgpool_remote_start is here; and I attached the same script.<br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.pgpool.net/docs/latest/pgpool_remote_start">http://www.pgpool.net/docs/latest/pgpool_remote_start</a><br clear="none"><br clear="none">In addition, I send the right basebackup.sh too.<br clear="none">In the previous wrong script, recovery.conf wasn't sent to recovery target.<br clear="none"><br clear="none">Could you try the new scripts attached?<br clear="none">(You might have to edit the scripts for your environment about ssh port, pgctl path etc.)<br clear="none"><br clear="none">If those doesn't work well still, please send pgpool and postgresql logs for analysis.<br clear="none"><br clear="none">> <br clear="none">> #!
/bin/sh<br clear="none">> DEST=$1<br clear="none">> DESTDIR=$2<br clear="none">> PGCTL=/usr/local/pgsql/bin/pg_ctl # Deploy a base backup<br clear="none">> ssh -T $DEST 'cd /data/; tar zxf pgsql.tar.gz' 2>/dev/null 1>/dev/null < /dev/null<br clear="none">> # Startup PostgreSQL server<br clear="none">> ssh -T $DEST $PGCTL -w -D $DESTDIR start 2>/dev/null 1>/dev/null < /dev/null &<br clear="none">> so, the first line decompress the pgsql.tar.gz and the starts the postgres server.<br clear="none">> <br clear="none">> <br clear="none">> <br clear="none">> I have updated my scripts:<br clear="none">> <br clear="none">> basebackup.sh<br clear="none">> <br clear="none">> #!/bin/bash -x<br clear="none">> <br clear="none">> DATA=$1<br clear="none">> RECOVERY_TARGET=$2<br clear="none">> RECOVERY_DATA=$3<br clear="none">> <br clear="none">> psql -c "select
pg_start_backup('pgpool-recovery')" postgres<br clear="none">> echo "restore_command = 'scp -P 2022 $HOSTNAME:/var/lib/postgresql/9.2/archive/%f %p'" > /var/lib/postgresql/9.2/data/recovery.conf<br clear="none">> tar -C /var/lib/postgresql/9.2/data -zcf pgsql.tar.gz . --exclude='postmaster.log'
--exclude='postmaster.pid' --exclude='postmaster.opts'<br clear="none">> psql -c 'select pg_stop_backup()' postgres<br clear="none">> scp -P 2022 pgsql.tar.gz $RECOVERY_TARGET:$RECOVERY_DATA<br clear="none">> ssh -T -p 2022 root@$RECOVERY_TARGET 'cd /var/lib/postgresql/9.2/data; tar zxf pgsql.tar.gz'<br clear="none">> <br clear="none">> <br clear="none">> #same pgpool_recovery_pitr script<br clear="none">> <br clear="none">> <br clear="none">> pgpool_remote_start<br clear="none">> <br clear="none">> #!/bin/bash -x<br clear="none">> #<br clear="none">> # Start PostgreSQL on the recovery target node<br clear="none">> #<br clear="none">> DEST=$1<br clear="none">> DESTDIR=$2<br clear="none">> # Deploy a base backup<br clear="none">> ssh -T -p 2022 root@$DEST '/etc/init.d/postgresql-9.2 start'<br clear="none">> rm -rf pgsql.tar.gz<br clear="none">> rm -rf recovery.conf<br clear="none">> <br
clear="none">> <br clear="none">> but the problem persists.<br clear="none">> Is this what you are trying to say or I have misunderstood ? <br clear="none">> <br clear="none">> <br clear="none">> <br clear="none">> Regards,<br clear="none">> Adrian Videanu<br clear="none">> <br clear="none">> <br clear="none">> ________________________________<br clear="none">> From: Yugo Nagata
<<a rel="nofollow" shape="rect" ymailto="mailto:nagata@sraoss.co.jp" target="_blank" href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a>><br clear="none">> To: Videanu Adrian <<a rel="nofollow" shape="rect" ymailto="mailto:videanuadrian@yahoo.com" target="_blank" href="mailto:videanuadrian@yahoo.com">videanuadrian@yahoo.com</a>> <br clear="none">> Cc: "<a rel="nofollow" shape="rect" ymailto="mailto:pgpool-general@pgpool.net" target="_blank" href="mailto:pgpool-general@pgpool.net">pgpool-general@pgpool.net</a>" <<a rel="nofollow" shape="rect" ymailto="mailto:pgpool-general@pgpool.net" target="_blank" href="mailto:pgpool-general@pgpool.net">pgpool-general@pgpool.net</a>> <br clear="none">> Sent: Thursday, November 7, 2013 1:58 PM<br clear="none">> Subject: Re: [pgpool-general: 2237] pgpool 3.3.1 replicate setup with 3 nodes<br clear="none">> <br clear="none">> <br clear="none">> Hi,<br clear="none">>
<br clear="none">> In your basebackup.sh, backuped data (pgsql.tar.gz) is sent to the recovery target<br clear="none">> host, but isn't extracted. This should be extracted at 1st stage in basebackup.sh<br clear="none">> and updated to latest state at 2nd stage in pgpool_recovery_pitr.sh.<br clear="none">> So, you should
not overwrite the data in pgpool_remote_start. This only have<br clear="none">> to restart postgresql.<br clear="none">> <br clear="none">> <br clear="none">> <br clear="none">> On Thu, 7 Nov 2013 03:15:44 -0800 (PST)<br clear="none">> Videanu Adrian <<a rel="nofollow" shape="rect" ymailto="mailto:videanuadrian@yahoo.com" target="_blank" href="mailto:videanuadrian@yahoo.com">videanuadrian@yahoo.com</a>> wrote:<br clear="none">> <br clear="none">> > Hi,<br clear="none">> > <br clear="none">> > Here are my scripts: <br clear="none">> > (<br clear="none">> > There must be something related to this line <br clear="none">> > <br clear="none">> > psql -p $port -c "SELECT setval(oid, nextval(oid)) FROM pg_class WHERE relkind = 'S'" $i<br clear="none">> > )<br clear="none">> > <br clear="none">> > <br
clear="none">> > <br clear="none">> > basebackup.sh<br clear="none">> > <br clear="none">> > #!/bin/bash -x<br clear="none">> > <br clear="none">> > DATA=$1<br clear="none">> > RECOVERY_TARGET=$2<br clear="none">> > RECOVERY_DATA=$3<br clear="none">> > <br clear="none">> > psql -c "select pg_start_backup('pgpool-recovery')" postgres<br clear="none">> >
echo "restore_command = 'scp -P 2022 $HOSTNAME:/var/lib/postgresql/9.2/archive/%f %p'" > /var/lib/postgresql/9.2/data/recovery.conf<br clear="none">> > tar -C /var/lib/postgresql/9.2/data -zcf pgsql.tar.gz . --exclude='postmaster.log' --exclude='postmaster.pid' --exclude='postmaster.opts'<br clear="none">> > psql -c 'select pg_stop_backup()' postgres<br clear="none">> > scp -P 2022 pgsql.tar.gz $RECOVERY_TARGET:$RECOVERY_DATA<br clear="none">> > <br clear="none">> > <br clear="none">> > pgpool_recovery_pitr.sh<br clear="none">> > <br clear="none">> > #!/bin/bash<br clear="none">> > <br clear="none">> > # Online recovery 2nd stage script<br clear="none">> > #<br clear="none">> > datadir=$1 # master dabatase cluster<br clear="none">> > DEST=$2 # hostname of the DB node to be
recovered<br clear="none">> > DESTDIR=$3 # database cluster of the DB node to be recovered<br clear="none">> >
port=5432 # PostgreSQL port number<br clear="none">> > archdir=/var/lib/postgresql/9.2/archive # archive log directory<br clear="none">> > <br clear="none">> > # Force to flush current value of sequences to xlog<br clear="none">> > psql -p $port -t -c 'SELECT datname FROM pg_database WHERE NOT datistemplate AND datallowconn' template1|<br clear="none">> > while read i<br clear="none">> > do<br clear="none">> > if [ "$i" != "" ];then<br clear="none">> > psql -p $port -c "SELECT setval(oid, nextval(oid)) FROM pg_class WHERE relkind = 'S'" $i<br clear="none">> > fi<br clear="none">> > done<br clear="none">> > <br clear="none">> > psql -p $port -c "SELECT pgpool_switch_xlog('$archdir')" template1<br clear="none">> > <br clear="none">> > <br clear="none">> > pgpool_remote_start<br
clear="none">> > <br clear="none">> > #!/bin/bash -x<br clear="none">> > #<br clear="none">> > # Start PostgreSQL on the recovery target node<br clear="none">> > #<br clear="none">> > DEST=$1<br clear="none">> > DESTDIR=$2<br clear="none">> > # Deploy a
base backup<br clear="none">> > ssh -T -p 2022 root@$DEST 'cd /var/lib/postgresql/9.2/data; tar zxf pgsql.tar.gz'<br clear="none">> > ssh -T -p 2022 root@$DEST '/etc/init.d/postgresql-9.2 start'<br clear="none">> > rm -rf pgsql.tar.gz<br clear="none">> > rm -rf recovery.conf<br clear="none">> > <br clear="none">> > <br clear="none">> > <br clear="none">> > These are my scripts used in recovery process. I will put here the config file also:<br clear="none">> > <br clear="none">> > # ----------------------------<br clear="none">> > # pgPool-II configuration file<br clear="none">> > # ----------------------------<br clear="none">> > #<br clear="none">> > # This file consists of lines of the form:<br clear="none">> > #<br clear="none">> > # name = value<br clear="none">> > #<br clear="none">> > # Whitespace may be used. Comments are
introduced with "#" anywhere on a line.<br clear="none">> > # The complete list of parameter names and allowed values can be found in the<br clear="none">> > # pgPool-II documentation.<br clear="none">> > #<br clear="none">> > # This file is read on server
startup and when the server receives a SIGHUP<br clear="none">> > # signal. If you edit the file on a running system, you have to SIGHUP the<br clear="none">> > # server for the changes to take effect, or use "pgpool reload". Some<br clear="none">> > # parameters, which are marked below, require a server shutdown and restart to<br clear="none">> > # take effect.<br clear="none">> > #<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # CONNECTIONS<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > # - pgpool Connection Settings -<br clear="none">> > <br clear="none">> > listen_addresses = '*'<br clear="none">> >
# Host name or IP address to
listen on:<br clear="none">> > # '*' for all, '' for no TCP/IP connections<br clear="none">> > # (change requires restart)<br clear="none">> > port = 9999<br clear="none">> > # Port number<br clear="none">> >
# (change requires restart)<br clear="none">> > socket_dir = '/tmp'<br clear="none">> > # Unix domain socket path<br clear="none">> > # The Debian package defaults to<br clear="none">> >
# /var/run/postgresql<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > <br clear="none">> > # - pgpool Communication Manager Connection Settings -<br clear="none">> > <br clear="none">> > pcp_port = 9898<br clear="none">> > # Port number for pcp<br clear="none">> >
# (change requires restart)<br clear="none">> > pcp_socket_dir = '/tmp'<br clear="none">> > # Unix domain socket path for pcp<br clear="none">> > # The Debian package defaults to<br clear="none">> >
# /var/run/postgresql<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Backend Connection Settings -<br clear="none">> > <br clear="none">> > backend_hostname0 = '192.168.91.33'<br clear="none">> > # Host name or IP address to connect to for backend 0<br clear="none">>
> backend_port0 = 5432<br clear="none">> >
# Port number for backend 0<br clear="none">> > backend_weight0 = 1<br clear="none">> > # Weight for backend 0 (only in load balancing mode)<br clear="none">> > backend_data_directory0 = '/var/lib/postgresql/9.2/data'<br clear="none">> > # Data directory for backend 0<br clear="none">> > backend_flag0 =
'ALLOW_TO_FAILOVER'<br clear="none">> >
# Controls various backend behavior<br clear="none">> > # ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER<br clear="none">> > <br clear="none">> > backend_hostname1 = '192.168.91.34'<br clear="none">> > backend_port1 = 5432<br clear="none">> > backend_weight1 = 1<br clear="none">> > backend_data_directory1 = '/var/lib/postgresql/9.2/data'<br clear="none">> > backend_flag1 = 'ALLOW_TO_FAILOVER'<br clear="none">> > <br clear="none">> > <br clear="none">> > backend_hostname2 = '192.168.91.35'<br
clear="none">> > backend_port2 = 5432<br clear="none">> > backend_weight2 = 1<br clear="none">> > backend_data_directory2 =
'/var/lib/postgresql/9.2/data'<br clear="none">> > backend_flag2 = 'ALLOW_TO_FAILOVER'<br clear="none">> > <br clear="none">> > <br clear="none">> > # - Authentication -<br clear="none">> > <br clear="none">> > enable_pool_hba = on<br clear="none">> > # Use pool_hba.conf for client authentication<br clear="none">> > pool_passwd = ''<br clear="none">> > # File name of pool_passwd for md5 authentication.<br clear="none">> >
# "" disables pool_passwd.<br clear="none">> > # (change requires restart)<br clear="none">> > authentication_timeout = 60<br clear="none">> > # Delay in seconds to complete client authentication<br clear="none">> >
# 0 means no timeout.<br clear="none">> > <br clear="none">> > # - SSL Connections -<br clear="none">> > <br clear="none">> > ssl = off<br clear="none">> > # Enable SSL support<br clear="none">> > # (change requires restart)<br clear="none">> > #ssl_key = './server.key'<br clear="none">> >
# Path to the SSL private key file<br clear="none">> > # (change requires restart)<br clear="none">> > #ssl_cert = './server.cert'<br clear="none">> > # Path to the SSL public certificate file<br clear="none">> >
# (change requires restart)<br clear="none">> > #ssl_ca_cert = ''<br clear="none">> > # Path to a single PEM format file<br clear="none">> > # containing CA root certificate(s)<br clear="none">> >
# (change requires restart)<br clear="none">> > #ssl_ca_cert_dir = ''<br clear="none">> > # Directory containing CA root certificate(s)<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > <br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > # POOLS<br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > # - Pool size -<br clear="none">> > <br clear="none">> > num_init_children = 100<br clear="none">> > # Number of pools<br clear="none">> > # (change requires restart)<br clear="none">> > max_pool = 10<br clear="none">> >
# Number of connections per pool<br clear="none">> >
# (change requires restart)<br clear="none">> > <br clear="none">> > # - Life time -<br clear="none">> > <br clear="none">> > child_life_time = 300<br clear="none">> > # Pool exits after being idle for this many seconds<br clear="none">> > child_max_connections = 0<br clear="none">> > # Pool exits after
receiving that many connections<br clear="none">> >
# 0 means no exit<br clear="none">> > connection_life_time = 0<br clear="none">> > # Connection to backend closes after being idle for this many seconds<br clear="none">> > # 0 means no close<br clear="none">> > client_idle_limit = 0<br clear="none">> >
# Client is disconnected after being idle for that many seconds<br clear="none">> > # (even inside an explicit transactions!)<br clear="none">> > # 0 means no disconnection<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br
clear="none">> > # LOGS<br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > # - Where to log -<br clear="none">> > <br clear="none">> > log_destination = 'syslog'<br clear="none">> > # Where to log<br clear="none">> > # Valid values are combinations of stderr,<br clear="none">> >
# and syslog. Default to stderr.<br clear="none">> > <br clear="none">> > # - What to log
-<br clear="none">> > <br clear="none">> > print_timestamp = on<br clear="none">> > # Print timestamp on each line<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > log_connections = on<br clear="none">> > # Log connections<br clear="none">> > log_hostname = on<br
clear="none">> >
# Hostname will be shown in ps status<br clear="none">> > # and in logs if connections are logged<br clear="none">> > log_statement = off<br clear="none">> > # Log all statements<br clear="none">> > log_per_node_statement = on<br clear="none">> >
# Log all statements<br clear="none">> > # with node and backend informations<br clear="none">> > log_standby_delay = 'none'<br clear="none">> > # Log standby delay<br clear="none">> >
# Valid values are combinations of always,<br clear="none">> > # if_over_threshold, none<br clear="none">> > <br clear="none">> > # - Syslog specific -<br clear="none">> > <br clear="none">> > syslog_facility = 'LOCAL0'<br clear="none">> > # Syslog local facility. Default to LOCAL0<br clear="none">> >
syslog_ident = 'pgpool'<br clear="none">> >
# Syslog program identification string<br clear="none">> > # Default to 'pgpool'<br clear="none">> > <br clear="none">> > # - Debug -<br clear="none">> > <br clear="none">> > debug_level = 0<br clear="none">> > # Debug message verbosity level<br clear="none">> >
# 0 means no message, 1 or more mean verbose<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # FILE LOCATIONS<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > pid_file_name = '/var/run/pgpool.pid'<br clear="none">> > # PID file name<br clear="none">> >
# (change requires restart)<br clear="none">> > logdir = '/tmp'<br clear="none">> > # Directory of pgPool status file<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br
clear="none">> > # CONNECTION POOLING<br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > connection_cache = on<br clear="none">> > # Activate connection pools<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # Semicolon separated list of
queries<br clear="none">> >
# to be issued at the end of a session<br clear="none">> > # The default is for 8.3 and later<br clear="none">> > reset_query_list = 'ABORT; DISCARD ALL'<br clear="none">> > # The following one is for 8.2 and before<br clear="none">> > #reset_query_list = 'ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT'<br
clear="none">> > <br clear="none">> > <br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > # REPLICATION MODE<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > replication_mode = on<br clear="none">> > # Activate replication mode<br clear="none">> > # (change requires restart)<br clear="none">> > replicate_select = off<br clear="none">> >
# Replicate SELECT statements<br clear="none">> > # when in replication or parallel mode<br clear="none">> > # replicate_select is higher priority than<br clear="none">> >
# load_balance_mode.<br clear="none">> > <br clear="none">> > insert_lock = on<br clear="none">> > # Automatically locks a dummy row or a table<br clear="none">> > # with INSERT statements to keep SERIAL data<br clear="none">> >
# consistency<br clear="none">> > # Without SERIAL, no lock will be issued<br clear="none">> > lobj_lock_table = ''<br clear="none">> > # When rewriting lo_creat command in<br clear="none">> >
# replication mode, specify table name to<br clear="none">> > # lock<br clear="none">> > <br clear="none">> > # - Degenerate handling -<br clear="none">> > <br clear="none">> > replication_stop_on_mismatch = off<br clear="none">> > # On disagreement with the packet kind<br clear="none">> >
# sent from backend, degenerate the node<br clear="none">> > # which is most likely "minority"<br clear="none">> > # If off, just force to exit this session<br clear="none">> > <br clear="none">> > failover_if_affected_tuples_mismatch = off<br clear="none">> >
# On disagreement with the number of affected<br clear="none">> > # tuples in UPDATE/DELETE queries, then<br clear="none">> > # degenerate the node which is most likely<br clear="none">> >
# "minority".<br clear="none">> > # If off, just abort the transaction to<br clear="none">> > # keep the consistency<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # LOAD BALANCING MODE<br
clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > load_balance_mode = on<br clear="none">> > # Activate load balancing mode<br clear="none">> > # (change requires restart)<br clear="none">> > ignore_leading_white_space = on<br clear="none">> > #
Ignore leading white spaces of each query<br clear="none">> > white_function_list =
''<br clear="none">> > # Comma separated list of function names<br clear="none">> > # that don't write to database<br clear="none">> > # Regexp are accepted<br clear="none">> > black_function_list = 'nextval,setval'<br clear="none">> >
# Comma separated list of function names<br clear="none">> > # that write to database<br clear="none">> > # Regexp are accepted<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # MASTER/SLAVE MODE<br
clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > master_slave_mode = off<br clear="none">> > # Activate master/slave mode<br clear="none">> > # (change requires restart)<br clear="none">> > master_slave_sub_mode = 'slony'<br clear="none">> > #
Master/slave sub mode<br clear="none">> >
# Valid values are combinations slony or<br clear="none">> > # stream. Default is slony.<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Streaming -<br clear="none">> > <br clear="none">> > sr_check_period = 0<br clear="none">> >
# Streaming replication check period<br clear="none">> > # Disabled (0) by default<br clear="none">> > sr_check_user = 'postgres'<br clear="none">> > # Streaming replication check user<br clear="none">> >
# This is necessary even if you disable<br clear="none">> > # streaming replication delay check with<br clear="none">> > # sr_check_period = 0<br clear="none">> > sr_check_password = ''<br clear="none">> >
# Password for streaming replication check user<br clear="none">> > delay_threshold = 0<br clear="none">> > # Threshold before not dispatching query to standby node<br clear="none">> > # Unit is in bytes<br clear="none">> >
# Disabled (0) by default<br clear="none">> > <br clear="none">> > # - Special commands -<br clear="none">> > <br clear="none">> > follow_master_command = ''<br clear="none">> > # Executes this command after master failover<br clear="none">> > # Special values:<br clear="none">> >
# %d = node id<br clear="none">> > # %h = host name<br clear="none">> > # %p = port number<br clear="none">> >
# %D =
database cluster path<br clear="none">> > # %m = new master node id<br clear="none">> > # %H = hostname of the new master node<br clear="none">> > # %M = old master node id<br clear="none">> >
# %P = old primary node id<br clear="none">> > # %r = new master port number<br clear="none">> > # %R = new master database cluster path<br clear="none">> >
# %% = '%' character<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # PARALLEL MODE<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > parallel_mode = off<br clear="none">> > # Activates parallel query mode<br clear="none">> >
# (change requires restart)<br clear="none">> > pgpool2_hostname = ''<br clear="none">> > # Set pgpool2 hostname<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - System DB info -<br clear="none">> > <br clear="none">> > system_db_hostname = 'localhost'<br
clear="none">> >
# (change requires restart)<br clear="none">> > system_db_port = 5432<br clear="none">> > # (change requires restart)<br clear="none">> > system_db_dbname = 'pgpool'<br clear="none">> > # (change requires restart)<br clear="none">> > system_db_schema = 'pgpool_catalog'<br clear="none">> >
# (change requires restart)<br clear="none">> > system_db_user = 'pgpool'<br clear="none">> > # (change requires restart)<br clear="none">> > system_db_password = ''<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > <br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > # HEALTH CHECK<br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > health_check_period = 2<br clear="none">> > # Health check period<br clear="none">> > # Disabled (0) by default<br clear="none">> > health_check_timeout = 20<br clear="none">> > # Health check
timeout<br clear="none">> >
# 0 means no timeout<br clear="none">> > health_check_user = 'postgres'<br clear="none">> > # Health check user<br clear="none">> > health_check_password = ''<br clear="none">> > # Password for health check user<br clear="none">> > health_check_max_retries = 0<br clear="none">> >
# Maximum number of times to retry a failed health check before giving up.<br clear="none">> > health_check_retry_delay = 1<br clear="none">> > # Amount of time to wait (in seconds) between retries.<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # FAILOVER AND FAILBACK<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br
clear="none">> > failover_command = ''<br clear="none">> >
# Executes this command at failover<br clear="none">> > # Special values:<br clear="none">> > # %d = node id<br clear="none">> >
# %h = host
name<br clear="none">> > # %p = port number<br clear="none">> > # %D = database cluster path<br clear="none">> > # %m = new master node id<br clear="none">> >
# %H = hostname of the new master node<br clear="none">> > # %M = old master node id<br clear="none">> > # %P = old primary node id<br clear="none">> >
# %r = new master port number<br clear="none">> > # %R = new master database cluster path<br clear="none">> > # %% = '%' character<br clear="none">> > failback_command = ''<br clear="none">> >
# Executes this command at failback.<br clear="none">> > # Special values:<br clear="none">> > # %d = node id<br clear="none">> >
# %h = host
name<br clear="none">> > # %p = port number<br clear="none">> > # %D = database cluster path<br clear="none">> > # %m = new master node id<br clear="none">> >
# %H = hostname of the new master node<br clear="none">> > # %M = old master node id<br clear="none">> > # %P = old primary node id<br clear="none">> >
# %r = new master port number<br clear="none">> > # %R = new master database cluster path<br clear="none">> > # %% = '%' character<br clear="none">> > <br clear="none">> > fail_over_on_backend_error = on<br clear="none">> >
# Initiates failover when reading/writing to the<br clear="none">> > # backend communication socket fails<br clear="none">> > # If set to off, pgpool will report an<br clear="none">> >
# error and disconnect the session.<br clear="none">> > <br clear="none">> > search_primary_node_timeout = 10<br clear="none">> > # Timeout in seconds to search for the<br clear="none">> > # primary node when a failover occurs.<br clear="none">> >
# 0 means no timeout, keep searching<br clear="none">> > # for a primary node forever.<br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # ONLINE RECOVERY<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > recovery_user = 'postgres'<br clear="none">> >
# Online recovery user<br clear="none">> > recovery_password = ''<br clear="none">> > # Online recovery password<br clear="none">> > recovery_1st_stage_command = 'basebackup.sh'<br clear="none">> > # Executes a command in first stage<br clear="none">> > recovery_2nd_stage_command = 'pgpool_recovery_pitr.sh'<br
clear="none">> >
# Executes a command in second stage<br clear="none">> > recovery_timeout = 900<br clear="none">> > # Timeout in seconds to wait for the<br clear="none">> > # recovering node's postmaster to start up<br clear="none">> >
# 0 means no wait<br clear="none">> > client_idle_limit_in_recovery = 0<br clear="none">> > # Client is disconnected after being idle<br clear="none">> > # for that many seconds in the second stage<br clear="none">> >
# of online recovery<br clear="none">> > # 0 means no disconnection<br clear="none">> > # -1 means immediate disconnection<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # WATCHDOG<br clear="none">>
>
#------------------------------------------------------------------------------<br clear="none">> > <br clear="none">> > # - Enabling -<br clear="none">> > <br clear="none">> > use_watchdog = on<br clear="none">> > # Activates watchdog<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # -Connection to up stream servers -<br clear="none">> > <br clear="none">> > trusted_servers = ''<br clear="none">> >
# trusted server list which are used<br clear="none">> > # to confirm network connection<br clear="none">> > # (hostA,hostB,hostC,...)<br clear="none">> >
# (change requires restart)<br clear="none">> > ping_path = '/bin'<br clear="none">> > # ping command path<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Watchdog communication Settings -<br clear="none">> > <br clear="none">> > wd_hostname =
'192.168.91.31'<br clear="none">> >
# Host name or IP address of this watchdog<br clear="none">> > # (change requires restart)<br clear="none">> > wd_port = 9000<br clear="none">> > # port number for watchdog service<br clear="none">> >
# (change requires restart)<br clear="none">> > wd_authkey = ''<br clear="none">> > # Authentication key for watchdog communication<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Virtual IP control Setting -<br clear="none">> > <br clear="none">>
> delegate_IP = '192.168.91.30'<br clear="none">> >
# delegate IP address<br clear="none">> > # If this is empty, virtual IP never bring up. <br clear="none">> > # (change requires restart)<br clear="none">> > ifconfig_path = '/bin'<br clear="none">> >
# ifconfig command path<br clear="none">> > # (change requires restart)<br clear="none">> > if_up_cmd = 'ifconfig eth0:0 inet $_IP_$ netmask 255.255.255.0'<br clear="none">> > # startup delegate IP command<br clear="none">> >
# (change requires restart)<br clear="none">> > if_down_cmd = 'ifconfig eth0:0 down'<br clear="none">> > # shutdown delegate IP command<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > arping_path =
'/sbin' # arping command path<br clear="none">> >
# (change requires restart)<br clear="none">> > <br clear="none">> > arping_cmd = 'arping -U $_IP_$ -w 1'<br clear="none">> > # arping command<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Behaivor on escalation Setting -<br clear="none">> > <br
clear="none">> > clear_memqcache_on_escalation = on<br clear="none">> >
# Clear all the query cache on shared memory<br clear="none">> > # when standby pgpool escalate to active pgpool<br clear="none">> > # (= virtual IP holder).<br clear="none">> >
# This should be off if client connects to pgpool<br clear="none">> > # not using virtual IP.<br clear="none">> > # (change requires restart)<br clear="none">> > wd_escalation_command = ''<br clear="none">> >
# Executes this command at escalation on new active pgpool.<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Lifecheck Setting - <br clear="none">> > <br clear="none">> > # -- common --<br clear="none">> > <br clear="none">> > #wd_lifecheck_method = 'heartbeat'<br clear="none">> >
# Method of watchdog lifecheck ('heartbeat' or 'query')<br clear="none">>
> # (change requires restart)<br clear="none">> > wd_lifecheck_method = 'heartbeat'<br clear="none">> > wd_interval = 2<br clear="none">> > # lifecheck interval (sec) > 0<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # -- heartbeat mode --<br
clear="none">> > <br clear="none">> > wd_heartbeat_port = 9694<br clear="none">> >
# Port number for receiving heartbeat signal<br clear="none">> > # (change requires restart)<br clear="none">> > wd_heartbeat_keepalive = 2<br clear="none">> > # Interval time of sending heartbeat signal (sec)<br clear="none">> >
# (change requires restart)<br clear="none">> > wd_heartbeat_deadtime = 30<br clear="none">> > # Deadtime interval for heartbeat signal (sec)<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > heartbeat_destination0 = '192.168.91.32'<br clear="none">> >
# Host name or IP address of destination 0<br clear="none">> > # for sending heartbeat signal.<br clear="none">> > # (change requires restart)<br clear="none">> > heartbeat_destination_port0 = 9694 <br clear="none">> >
# Port number of destination 0 for sending<br clear="none">> > # heartbeat signal. Usually this is the<br clear="none">> > # same as wd_heartbeat_port.<br clear="none">> >
# (change requires restart)<br clear="none">> > heartbeat_device0 = 'eth0'<br clear="none">> > # Name of NIC device (such like 'eth0')<br clear="none">> > # used for sending/receiving heartbeat<br clear="none">> >
# signal to/from destination 0.<br clear="none">> > # This works only when this is not empty<br clear="none">> > # and pgpool has root privilege.<br clear="none">> >
# (change requires restart)<br clear="none">> > <br clear="none">> > #heartbeat_destination1 = 'host0_ip2'<br clear="none">> > #heartbeat_destination_port1 = 9694<br clear="none">> > #heartbeat_device1 = ''<br clear="none">> > <br clear="none">> > # -- query mode --<br clear="none">> > <br clear="none">> > wd_life_point = 3<br clear="none">> > # lifecheck retry times<br clear="none">> >
# (change
requires restart)<br clear="none">> > wd_lifecheck_query = 'SELECT 1'<br clear="none">> > # lifecheck query to pgpool from watchdog<br clear="none">> > # (change requires restart)<br clear="none">> > wd_lifecheck_dbname = 'template1'<br clear="none">> > # Database name connected for lifecheck<br
clear="none">> >
# (change requires restart)<br clear="none">> > wd_lifecheck_user = 'postgres'<br clear="none">> > # watchdog user monitoring pgpools in lifecheck<br clear="none">> > # (change requires restart)<br clear="none">> > wd_lifecheck_password = ''<br clear="none">> >
# Password for watchdog user in lifecheck<br clear="none">> > # (change requires restart)<br clear="none">> > <br clear="none">> > # - Other pgpool Connection Settings -<br clear="none">> > <br clear="none">> > other_pgpool_hostname0 = '192.168.91.32'<br clear="none">> > # Host name or IP address
to connect to for other pgpool 0<br clear="none">> >
# (change requires restart)<br clear="none">> > other_pgpool_port0 = 9999<br clear="none">> > # Port number for othet pgpool 0<br clear="none">> > # (change requires restart)<br clear="none">> > other_wd_port0 = 9000<br clear="none">> >
# Port number for othet watchdog 0<br clear="none">> > # (change requires restart)<br clear="none">> > #other_pgpool_hostname1 = 'host1'<br clear="none">> > #other_pgpool_port1 = 5432<br clear="none">> > #other_wd_port1 = 9000<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # OTHERS<br clear="none">> >
#------------------------------------------------------------------------------<br clear="none">> > relcache_expire = 0<br clear="none">> >
# Life time of relation cache in seconds.<br clear="none">> > # 0 means no cache expiration(the default).<br clear="none">> > # The relation cache is used for cache the<br clear="none">> >
# query result against PostgreSQL system<br clear="none">> > # catalog to obtain various information<br clear="none">> > # including table structures or if it's a<br clear="none">> >
# temporary table or not. The cache is<br clear="none">> > # maintained in a pgpool child local memory<br clear="none">> > # and being kept as long as it survives.<br clear="none">> >
# If someone modify the table by using<br clear="none">> > # ALTER TABLE or some such, the relcache is<br clear="none">> > # not consistent anymore.<br clear="none">> >
# For this purpose, cache_expiration<br clear="none">> > # controls the life time of the cache.<br clear="none">> > <br clear="none">> > relcache_size = 256<br clear="none">> > # Number of relation cache<br clear="none">> > # entry. If you see frequently:<br clear="none">> >
# "pool_search_relcache: cache replacement happend"<br clear="none">> > # in the pgpool log, you might want to increate this number.<br clear="none">> > <br clear="none">> > check_temp_table = on<br clear="none">> > # If on, enable temporary table check in SELECT statements.<br clear="none">> >
# This initiates queries against system catalog of primary/master<br clear="none">> > # thus increases load of master.<br clear="none">> > # If you are absolutely sure that your system never uses temporary tables<br clear="none">> >
# and you want to save access to primary/master, you could turn this off.<br clear="none">> > # Default is on.<br clear="none">> > <br clear="none">> > <br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > # ON MEMORY QUERY MEMORY CACHE<br clear="none">> > #------------------------------------------------------------------------------<br clear="none">> > memory_cache_enabled = off<br clear="none">> >
# If on, use the memory cache functionality, off by default<br clear="none">> > memqcache_method = 'shmem'<br clear="none">> > # Cache storage method. either 'shmem'(shared memory) or<br clear="none">> > # 'memcached'. 'shmem' by default<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_memcached_host = 'localhost'<br clear="none">> >
# Memcached host name or IP address. Mandatory if<br clear="none">> > # memqcache_method = 'memcached'.<br clear="none">> > # Defaults to localhost.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_memcached_port = 11211<br clear="none">> >
# Memcached port number. Mondatory if memqcache_method = 'memcached'.<br clear="none">> > # Defaults to 11211.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_total_size = 67108864<br clear="none">> > # Total memory size in bytes for storing memory cache.<br clear="none">> >
# Mandatory if memqcache_method = 'shmem'.<br clear="none">> > # Defaults to 64MB.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_max_num_cache = 1000000<br clear="none">> > # Total number of cache entries. Mandatory<br clear="none">> >
# if memqcache_method = 'shmem'.<br clear="none">> > # Each cache entry consumes 48 bytes on shared memory.<br clear="none">> > # Defaults to 1,000,000(45.8MB).<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_expire = 0<br clear="none">> >
# Memory cache entry life time specified in seconds.<br clear="none">> > # 0 means infinite life time. 0 by default.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_auto_cache_invalidation = on<br clear="none">> > # If on, invalidation of query cache is triggered by corresponding<br clear="none">> >
# DDL/DML/DCL(and memqcache_expire). If off, it is only triggered<br clear="none">> > # by memqcache_expire. on by default.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_maxcache = 409600<br clear="none">> > # Maximum SELECT result size in bytes.<br clear="none">> >
# Must be smaller than memqcache_cache_block_size. Defaults to 400KB.<br clear="none">> > # (change requires restart)<br clear="none">> > memqcache_cache_block_size = 1048576<br clear="none">> > # Cache block size in bytes. Mandatory if memqcache_method = 'shmem'.<br clear="none">> > # Defaults to
1MB.<br clear="none">> >
# (change requires restart)<br clear="none">> > memqcache_oiddir = '/var/log/pgpool/oiddir'<br clear="none">> > # Temporary work directory to record table oids<br clear="none">> > # (change requires restart)<br clear="none">> > white_memqcache_table_list = ''<br clear="none">> >
# Comma separated list of table names to memcache<br clear="none">> > # that don't write to database<br clear="none">> > # Regexp are accepted<br clear="none">> > black_memqcache_table_list = ''<br clear="none">> >
# Comma separated list of table names not to memcache<br clear="none">> > # that don't write to database<br clear="none">> > # Regexp are accepted<br clear="none">> > <br clear="none">> > <br clear="none">> > <br clear="none">> > <br clear="none">> > Also, when I use load balance mode the load balancing is
made between connections and not queries, right?<br clear="none">> > I mean that if i have 1 script
the open one connection and perform 1000 selects, these selects will be performed on one node.<br clear="none">> > <br clear="none">> > <br clear="none">> > <br clear="none">> > <br clear="none">> > Regards,<br clear="none">> > Adrian Videanu<br clear="none">> > <br clear="none">> > <br clear="none">> > ________________________________<br clear="none">> > From: Yugo Nagata <<a rel="nofollow" shape="rect" ymailto="mailto:nagata@sraoss.co.jp" target="_blank" href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a>><br clear="none">> > To: Videanu Adrian <<a rel="nofollow" shape="rect" ymailto="mailto:videanuadrian@yahoo.com" target="_blank" href="mailto:videanuadrian@yahoo.com">videanuadrian@yahoo.com</a>> <br clear="none">> > Cc: <a rel="nofollow" shape="rect" ymailto="mailto:pgpool-general@pgpool.net" target="_blank"
href="mailto:pgpool-general@pgpool.net">pgpool-general@pgpool.net</a> <br clear="none">> > Sent: Thursday, November 7, 2013 12:44 PM<br clear="none">> > Subject: Re: [pgpool-general: 2237] pgpool 3.3.1 replicate setup with 3 nodes<br clear="none">> > <br clear="none">> > <br clear="none">> > Hi,<br clear="none">> > <br clear="none">> > Are you setting
recovery_2nd_stage_command properly?<br clear="none">> > (<a rel="nofollow" shape="rect" target="_blank" href="http://www.pgpool.net/docs/latest/pgpool-en.html#online-recovery">http://www.pgpool.net/docs/latest/pgpool-en.html#online-recovery</a><br clear="none">> > <a rel="nofollow" shape="rect" target="_blank" href="http://www.pgpool.net/docs/latest/pgpool-en.html#RECOVERY_2ND_STAGE_COMMAND">http://www.pgpool.net/docs/latest/pgpool-en.html#RECOVERY_2ND_STAGE_COMMAND</a>)<br clear="none">> > <br clear="none">> > If this is wrong, recovery might fails and backends might get inconsistent.<br clear="none">> > For analysis, could you please provide your pgpool.conf and all scripts? <br clear="none">> > <br clear="none">> > <br clear="none">> > On Wed, 6 Nov 2013 06:08:05 -0800 (PST)<br clear="none">> > Videanu Adrian <<a rel="nofollow" shape="rect" ymailto="mailto:videanuadrian@yahoo.com"
target="_blank" href="mailto:videanuadrian@yahoo.com">videanuadrian@yahoo.com</a>> wrote:<br clear="none">> > <br clear="none">> > > Hi all,<br clear="none">> > > <br clear="none">> > > I have a pgpool 3.3.1 with 3 postgresql 9.2
backends.<br clear="none">> > > The pgpool is configured as : [ mode ]<br clear="none">> > > Replication Mode<br clear="none">> > > / Load Balance Mode / Watchdog On<br clear="none">> > > <br clear="none">> > > I have a problem when I use online recovery for one of the nodes.<br clear="none">> > > <br clear="none">> > > Scenario: <br clear="none">> > > 1. The 3rd node failed.<br clear="none">> > > 2. Pgpool detects the failure and present the node as down. (everything is ok)<br clear="none">> > > 3. I press recovery from pgpadmin and the recovery script starts.<br clear="none">> > > 4. The 3rd node is back online, but the sequence for this node and the 1st node are incremented by 1 regarding the 2nd node.<br clear="none">> > > Because of this nothing works because i get a kind mismatch between nodes.<br
clear="none">> > > <br clear="none">> > > Does replication setup works for more than 2 nodes and if yes how should i perform online recovery.<br clear="none">> > > <br clear="none">> >
> PS. I use PITR.<br clear="none">> > > <br clear="none">> > > <br clear="none">> > > <br clear="none">> > > Regards,<br clear="none">> > > Adrian Videanu<br clear="none">> > <br clear="none">> > <br clear="none">> > -- <br clear="none">> > Yugo Nagata <<a rel="nofollow" shape="rect" ymailto="mailto:nagata@sraoss.co.jp" target="_blank" href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a><br clear="none">> > ><br clear="none">> <br clear="none">> <br clear="none">> -- <br clear="none">> Yugo Nagata <<a rel="nofollow" shape="rect" ymailto="mailto:nagata@sraoss.co.jp" target="_blank" href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a>><br clear="none"><br clear="none"><br clear="none">-- <br clear="none">Yugo Nagata <<a rel="nofollow" shape="rect" ymailto="mailto:nagata@sraoss.co.jp" target="_blank"
href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a>><br clear="none"><br clear="none"></div> </div> </div></div> </div></div></div><br><div class="yqt1393182400" id="yqt99750">_______________________________________________<br clear="none">pgpool-general mailing list<br clear="none"><a shape="rect" ymailto="mailto:pgpool-general@pgpool.net" href="mailto:pgpool-general@pgpool.net">pgpool-general@pgpool.net</a><br clear="none"><a shape="rect" href="http://www.pgpool.net/mailman/listinfo/pgpool-general" target="_blank">http://www.pgpool.net/mailman/listinfo/pgpool-general</a><br clear="none"></div><br><br></div> </div> </div> </div></body></html>