Re: Synchronizing slots from primary to standby

On 24.11.21 07:11, Masahiko Sawada wrote:
> I haven’t looked at the patch deeply but regarding 007_sync_rep.pl,
> the tests seem to fail since the tests rely on the order of the wal
> sender array on the shared memory. Since a background worker for
> synchronizing replication slots periodically connects to the walsender
> on the primary and disconnects, it breaks the assumption of the order.
> Regarding 010_logical_decoding_timelines.pl, I guess that the patch
> breaks the test because the background worker for synchronizing slots
> on the replica periodically advances the replica's slot. I think we
> need to have a way to disable the slot synchronization or to specify
> the slot name to sync with the primary. I'm not sure we already
> discussed this topic but I think we need it at least for testing
> purposes.

This has been addressed by patch v2 that adds such a setting.