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dsc0_just_rebooted.txt |
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Login to dcs0 and dcs2 as needed as postgres/production. |
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NOTE: to use like jim after su - postgres (newuser1): |
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> csh |
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> source .jimalias |
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NOTE!! For dcs1: Substitute dcs1 for dcs0 below and 5431 for 5430 |
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Stop dcs0 DB on dcs0: pg_ctl -D /var/lib/pgsql/dcs0_data -m fast stop |
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Stop dcs0/dcs1 warm standby on dcs2: |
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pg_ctl -D /var/lib/pgsql/dcs0_data/ stop -m fast |
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Make sure no /tmp/pgsql.trigger.5430 on dcs2 |
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Login to dcs0 as postgres |
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> ls -1 / | grep WALarchive | wc -l |
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1 |
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NOTE: the original dcs0 will return 1. Orig dcs2 converted to dcs0 returns 0. |
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If (0) then |
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cp configfiles/postgresql.conf.dcs0.0 dcs0_data/postgresql.conf |
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rm -f /data/WALarchive/5430/* |
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if (1) then |
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cp configfiles/postgresql.conf.dcs0.1 dcs0_data/postgresql.conf |
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rm -f /WALarchive/5430/* |
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Restart the dcs0 database to create WAL archives: |
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> pg_ctl -D /var/lib/pgsql/dcs0_data/ start |
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Begin the backup process on dcs0: |
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> psql -p 5430 -c "select pg_start_backup('2010-03-15')" |
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Create a tar archive of the system data directory: |
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> tar -czvf dcs0_backup.tar.gz dcs0_data/ |
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Stop the backup process on dcs0: |
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> psql -p 5430 -c "select pg_stop_backup()" |
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Copy the archive file from dcs0 to dcs2: |
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> scp dcs0_backup.tar.gz postgres@dcs2:/var/lib/pgsql/ |
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Now login to dcs2 as postgres: |
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> rm -rf dcs0_data |
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Uncompress the archive file: |
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> tar -xzvf dcs0_backup.tar.gz |
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> ls -1 / | grep WALarchive | wc -l |
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0 |
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|
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if(0) then |
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cp configfiles/recovery.conf.dcs0.0 dcs0_data/recovery.conf |
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cp configfiles/postgresql.conf.dcs0.ws dcs0_data/postgresql.conf |
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if(1) then |
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cp configfiles/recovery.conf.dcs0.1 dcs0_data/recovery.conf |
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cp configfiles/postgresql.conf.dcs0.ws dcs0_data/postgresql.conf |
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Remove the postmaster.pid file: |
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> rm dcs0_data/postmaster.pid |
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> chmod 700 /var/lib/pgsql/dcs0_data/ |
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Start the dcs0 warm standby server, execute the command: |
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> pg_ctl -D /var/lib/pgsql/dcs0_data/ start |
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The server should go into recovery mode and stay there. |
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This msg is ok: |
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LOG: could not create IPv6 socket: Address family not supported by protocol |
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|
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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Now as user production on dcs0: |
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See the file /home/production/cvs/JSOC/doc/whattodo_dcs.txt |
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