On 01/02/2015 01:57 AM, Heikki Linnakangas wrote: > wal_keep_segments does not affect the calculation of CheckPointSegments. > If you set wal_keep_segments high enough, checkpoint_wal_size will be > exceeded. The other alternative would be to force a checkpoint earlier, > i.e. lower CheckPointSegments, so that checkpoint_wal_size would be > honored. However, if you set wal_keep_segments high enough, higher than > checkpoint_wal_size, it's impossible to honor checkpoint_wal_size no > matter how frequently you checkpoint.
So you're saying that wal_keep_segments is part of the max_wal_size total, NOT in addition to it? Just asking for clarification, here. I think that's a fine idea, I just want to make sure I understood you. The importance of wal_keep_segments will be fading as more people use replication slots. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
