We are using 9.1., We have a set up like a master and 2 standby servers. M -- > S1,S2 . Both standby S1 and S2 share the same archive. Master will have an Virtual IP. Both stand by servers will be replicated using this virtual ip. Assume the master fails,using our heart beat mechanism Virtual IP bound to S1(if S1 is ahead or equal to S2 XLOG)., Is it required to copy the time line history file that is generated at time of S1 promotion as master to the archive directory of S2 for replication to work (i.e S1(new master) to S2.) without restarting S2 or Is there any command in restore_command to be modified in recovery.conf ---------------------------------------------- Replication related configuration that are set in primary.,(postgresql.conf) wal_level = hot_standby hot_standby = on archive_mode = on archive_command = 'cp %p ../archive/%f' --------------------------------------------- recovery.conf: restore_command = 'cp ../archive/%f "%p"' standby_mode = 'on' primary_conninfo = 'host=IP port=5432 user=user password=pass' trigger_file = '/tmp/pg_failover_trigger' recovery_target_timeline='latest' --------------------------------------- *** if you copy(manually) the history file to the archive directory of S2 the replication catches up with S1 with out restarting S2. Without doing this history file copy from S1 to S2, S2 keeps throwing the following error message., 2011-12-07 17:29:46 IST::@:[18879]:FATAL: could not receive data from WAL stream: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. cp: cannot stat `../archive/000000010000000000000005': No such file or directory 2011-12-07 17:29:49 IST::@:[18875]:LOG: record with zero length at 0/5D8FFC0 cp: cannot stat `../archive/000000010000000000000005': No such file or directory cp: cannot stat `../archive/00000002.history': No such file or directory 2011-12-07 17:29:49 IST::@:[20362]:FATAL: timeline 2 of the primary does not match recovery target timeline 1 cp: cannot stat `../archive/000000010000000000000005': No such file or directory cp: cannot stat `../archive/000000010000000000000005': No such file or directory cp: cannot stat `../archive/00000002.history': No such file or directory 2011-12-07 17:29:54 IST::@:[20367]:FATAL: timeline 2 of the primary does not match recovery target timeline 1 cp: cannot stat `../archive/000000010000000000000005': No such file or directory cp: cannot stat `../archive/000000010000000000000005': No such file or directory cp: cannot stat `../archive/00000002.history': No such file or directory -- View this message in context: http://postgresql.1045698.n5.nabble.com/Copying-timeline-history-file-to-standby-tp5073536p5073536.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general