Greg Smith <greg@2ndquadrant.com> writes:
[…]
> I don't see this as needing any implementation any more complicated than the
> usual way such timeouts are handled. Note how long you've been trying to
> reach the standby. Default to -1 for forever. And if you hit the timeout,
> mark the standby as degraded and force them to do a proper resync when they
> disconnect. Once that's done, then they can re-enter sync rep mode again,
> via the same process a new node would have done so.
Thank you for this post, which is so much better than anything I could
achieve.
Just wanted to add that it should be possible in lots of cases to have a
standby rejoin the party without getting as far back as taking a new
base backup. Depends on wal_keep_segments and standby's degraded state,
among other parameters (archives, etc).
Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
