- If using PostgreSQL 9.3 or 9.4, you should ensure that the shutdown command
is configured to use PostgreSQL's fast shutdown mode (the default in 9.5
and later). If relying on pg_ctl to perform database server operations,
you should include -m fast in pg_ctl_options
in repmgr.conf.
- pg_rewind *requires* that either wal_log_hints is enabled, or that
data checksums were enabled when the cluster was initialized. See the
pg_rewind documentation
for details.
- repmgrd should not be running with setting failover=automatic
in repmgr.conf when a switchover is carried out, otherwise the
repmgrd daemon may try and promote a standby by itself.
We hope to remove some of these restrictions in future versions of repmgr.