Horton

Re: Skipping logical replication transactions on subscriber side

Amit Kapila <amit.kapila16@gmail.com>

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From: Amit Kapila <amit.kapila16@gmail.com>
To: Masahiko Sawada <sawada.mshk@gmail.com>
Cc: Greg Nancarrow <gregn4422@gmail.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>, "tanghy.fnst@fujitsu.com" <tanghy.fnst@fujitsu.com>, "osumi.takamichi@fujitsu.com" <osumi.takamichi@fujitsu.com>, Alexey Lesovsky <lesovsky@gmail.com>, Peter Eisentraut <peter.eisentraut@enterprisedb.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2021-11-09T10:03:50Z
Lists: pgsql-hackers 
On Tue, Nov 9, 2021 at 12:13 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
>
> On Tue, Nov 9, 2021 at 3:08 PM Amit Kapila <amit.kapila16@gmail.com> wrote:
> >
> >
> > 4. It seems now stats_reset entry is not present in
> > pg_stat_subscription_workers? How will users find that information if
> > required?
>
> Users can find it in pg_stat_databases. The same is true for table and
> function statistics -- they don't have stats_reset column but reset
> stats_reset of its entry on pg_stat_database.
>

Okay, but isn't it better to deal with the reset of subscription
workers via pgstat_recv_resetsinglecounter by introducing subobjectid?
I think that will make code consistent for all database-related stats.

-- 
With Regards,
Amit Kapila.

Commits

  1. Test ALIGNOF_DOUBLE==4 compatibility under ALIGNOF_DOUBLE==8.

  2. Reorder subskiplsn in pg_subscription to avoid alignment issues.

  3. Add ALTER SUBSCRIPTION ... SKIP.

  4. Optionally disable subscriptions on error.

  5. Update docs of logical replication for commit 8d74fc96db.

  6. Respect permissions within logical replication.

  7. Fix regression test failure caused by commit 8d74fc96db.

  8. Add a view to show the stats of subscription workers.

  9. Add logical change details to logical replication worker errcontext.

  10. Rename LOGICAL_REP_MSG_STREAM_END to LOGICAL_REP_MSG_STREAM_STOP.

  11. Fix typo in protocol.sgml.

  12. Remove unused argument in apply_handle_commit_internal().

  13. Fix replication of in-progress transactions in tablesync worker.

  14. Reorder pg_sequence columns to avoid alignment issue