On Wed, May 28, 2014 at 8:53 PM, Andres Freund <
andres@2ndquadrant.com> wrote:
> Hi,
>
> Since a64ca63e59c11d8fe6db24eee3d82b61db7c2c83 pg_sleep() uses
> WaitLatch() to wait. That's fine in itself. But
> procsignal_sigusr1_handler, which is used e.g. when resolving recovery
> conflicts, doesn't unconditionally do a SetLatch().
> That means that we'll we'll currently not be able to cancel conflicting
> backends during recovery for 10min. Now, I don't think that'll happen
> too often in practice, but it's still annoying.
How will such a situation occur, aren't we using pg_usleep during
RecoveryConflict functions
(ex. in ResolveRecoveryConflictWithVirtualXIDs)?
