On Wed, 5 Apr 2017 07:24:32 +0000 Marc Tempelmeier <marc.tempelmeier@xxxxxxxx> wrote: > > Can you elaborate a bit on this part: > " Because of how Postgres caches changes, you may find that a failover requires some time in recovery mode." https://www.postgresql.org/docs/9.6/static/wal-intro.html The WAL requires that any unexpected shutdown of Postgres (where it doesn't get to explicitly flush data pages to disk) go through a recovery cycle to fix anything in the WAL that is not yet in the data pages. Doing disk level replication and using that as a failover essentially duplicates a crash on the PostgreSQL end when you failover. -- Bill Moran <wmoran@xxxxxxxxxxxxxxxxx> -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
