Hi all,
I’m trying to work out a procedure for a safe zero data loss switchover under (high) load, which allows the old master to be reconnected without the use of pgrewind.
Would the following be sane?
- open connection to database
- smart shutdown master
- terminate all other connections
- wait for shutdown (archiving will finish)
- Identify last archived WAL file name (ensure it’s on backup server.)
- wait till a standby has applied this WAL
- promote that standby
- attach old master to new master
Cheers,
James Sewell
James Sewell,
Chief Architect, Jirotech
Suite 46, Jones Bay Wharf, 26-32 Pirrama Road, Pyrmont NSW 2009
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