Re: [GENERAL] Template zero xid issue

"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:

> 4. Keep spawning a child, but mark it in the BackendList as known
> doomed, and don't count such children when deciding if it's OK to
> terminate. The problem with this idea is that such children will
> still be connected to shared memory, and we really don't want to
> terminate the postmaster before all connections to shmem are gone.
> (This objection also applies to #1, now that I think about it.)
>
> I'm sort of leaning to solution #3, but I wondered if anyone had
> a different opinion or a better idea.

A variant on option 4 would be to stop accepting new connections once there
are only known-doomed clients left. Ie, behave as if we're shut down already
but not actually exit until all the known-doomed clients drain out.

I think I agree that option 3 sounds simpler though.

--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com