HOT standby on windows not working - Mailing list pgsql-general
From | CS_DBA |
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Subject | HOT standby on windows not working |
Date | |
Msg-id | 534717E5.20400@consistentstate.com Whole thread Raw |
Responses |
Re: HOT standby on windows not working
|
List | pgsql-general |
Hi All; We're setting up a HOT standby on Windows 2000 server and PostgreSQL 9.2 We do this: 1) stop both servers 2) copy the master data directory to the slave 3) edit the master postgresql.conf file as follows: Modify the following listen_address = ‘*’ wal_level = hot_standby max_wal_senders = 3 4) edit the master pg_hba.conf file and add this line: host replication all 192.168.91.136/32 trust where 192.168.91.136 is the IP of the slave 5) edit the postgresql.conf file on the slave as follows: hot_standby = on 6) create a recovery.conf with the following contents: standby_mode = ‘on’ primary_conninfo = ‘host=192.168.91.165’ where 192.168.91.165 is the IP of the master 7) start the standby 8) start the master The standby simply comes online, almost like it is ignoring the recovery.conf file. Here's a tail of the log from the slave when we start it: 2014-04-10 15:45:24 MDT [3756]: [1-1] LOG: database system was interrupted; last known up at 2014-04-10 16:36:17 MDT 2014-04-10 15:45:24 MDT [3756]: [2-1] LOG: database system was not properly shut down; automatic recovery in progress 2014-04-10 15:45:24 MDT [3756]: [3-1] LOG: record with zero length at 0/8000080 2014-04-10 15:45:24 MDT [3756]: [4-1] LOG: redo is not required 2014-04-10 15:45:24 MDT [3592]: [1-1] LOG: database system is ready to accept connections 2014-04-10 15:45:24 MDT [3572]: [1-1] LOG: autovacuum launcher started Any thoughts why this is not working? I've also tried this approach: 1) Master postgresql.conf file Modify the following settings: listen_address = ‘*’ wal_level = hot_standby max_wal_senders = 3 2) Modify Master pg_hba.conf file: hostssl replication al 192.168.91.136/32 trust 3) RESTART MASTER DATABASE 4) Slave postgresql.conf file hot_standby = on 5) Create a recovery.conf file on the slave as follows: standby_mode = ‘on’ primary_conninfo = ‘host=192.168.91.165’ 6) Execute a ‘pg_start_backup’ on the master. SELECT pg_start_backup (‘date’, true); 7) Copy the data files to the standby. a) Copied the master data directory to the slave desktop b) removed postgresql.conf and pg_hba.conf from the data directory (the copy on the slave desktop) c) removed the pg_xlog dir from the data directory (the copy on the slave desktop) 8) Execute a ‘pg_stop_backup’ on the master. SELECT pg_stop_backup (); 9) Copy the Write Ahead Log (WAL) files (the data/pg_xlog directory) from the master to the standby 10) start the standby database We get the same behavior (i.e. the slave comes fully online, not just into recovery / standby mode) no matter which approach we use... Thoughts? Thanks in advance...
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