Horton

Re: Introduce XID age and inactive timeout based replication slot invalidation

Bertrand Drouvot <bertranddrouvot.pg@gmail.com>

View thread
From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
To: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>, Nathan Bossart <nathandbossart@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2024-03-23T09:04:45Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Add a test for commit ac0e33136a using the injection point.

  2. Invalidate inactive replication slots.

  3. Fix incorrect slot type in BuildTupleHashTableExt

  4. Allow synced slots to have their inactive_since.

  5. Change last_inactive_time to inactive_since in pg_replication_slots.

  6. Track last_inactive_time in pg_replication_slots.

  7. Track invalidation_reason in pg_replication_slots.

  8. Add option force_initdb to PostgreSQL::Test::Cluster:init()

  9. Add a failover option to subscriptions.

  10. Allow setting failover property in the replication command.

  11. Allow to enable failover property for replication slots via SQL API.

  12. Track conflict_reason in pg_replication_slots.

  13. Log messages for replication slot acquisition and release.

  14. Remove vacuum_defer_cleanup_age

  15. Fix corruption due to vacuum_defer_cleanup_age underflowing 64bit xids

  16. meson: Add initial version of meson based build system

Hi,

On Sat, Mar 23, 2024 at 01:11:50PM +0530, Bharath Rupireddy wrote:
> On Sat, Mar 23, 2024 at 11:27 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
> >
> > How about adding the test in 019_replslot_limit? It is not a direct
> > fit but I feel later we can even add 'invalid_timeout' related tests
> > in this file which will use last_inactive_time feature.
> 
> I'm thinking the other way. Now, the new TAP file 043_replslot_misc.pl
> can have last_inactive_time tests, and later invalid_timeout ones too.
> This way 019_replslot_limit.pl is not cluttered.

I share the same opinion as Amit: I think 019_replslot_limit would be a better
place, because I see the timeout as another kind of limit.

> 
> > It is also
> > possible that some of the tests added by the 'invalid_timeout' feature
> > will obviate the need for some of these tests.
> 
> Might be. But, I prefer to keep both these tests separate but in the
> same file 043_replslot_misc.pl. Because we cover some corner cases the
> last_inactive_time is set upon loading the slot from disk.

Right but I think that this test does not necessary have to be in the same .pl
as the one testing the timeout. Could be added in one of the existing .pl like
001_stream_rep.pl for example.

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com