RE: speed up a logical replica setup

Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com>

From: "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>
To: 'Euler Taveira' <euler@eulerto.com>, "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>
Cc: Shlok Kyal <shlok.kyal.oss@gmail.com>, vignesh C <vignesh21@gmail.com>, Michael Paquier <michael@paquier.xyz>, Peter Eisentraut <peter@eisentraut.org>, Andres Freund <andres@anarazel.de>, Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>
Date: 2024-01-17T07:28:55Z
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. pg_createsubscriber: Remove obsolete comment

  2. pg_createsubscriber: Fix an unpredictable recovery wait time.

  3. Fix unstable test in 040_pg_createsubscriber.

  4. Fix the testcase introduced in commit 81d20fbf7a.

  5. Further weaken new pg_createsubscriber test on Windows.

  6. Temporarily(?) weaken new pg_createsubscriber test on Windows.

  7. Make pg_createsubscriber warn if publisher has two-phase commit enabled.

  8. Make pg_createsubscriber more wary about quoting connection parameters.

  9. pg_createsubscriber: Remove failover replication slots on subscriber

  10. pg_createsubscriber: Remove replication slot check on primary

  11. pg_createsubscriber: Only --recovery-timeout controls the end of recovery process

  12. pg_createsubscriber: creates a new logical replica from a standby server

  13. Add some const decorations

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

  15. Remove MSVC scripts

Attachments

Dear Euler, hackers,

I found that some bugs which have been reported by Shlok were not fixed, so
made a top-up patch. 0001 was not changed, and 0002 contains below:

* Add a timeout option for the recovery option, per [1]. The code was basically ported from pg_ctl.c.
* Reject if the target server is not a standby, per [2]
* Raise FATAL error if --subscriber-conninfo specifies non-local server, per [3]
  (not sure it is really needed, so feel free reject the part.)

Feel free to merge parts of 0002 if it looks good to you.
Thanks Shlok to make a part of patch.

[1]: https://www.postgresql.org/message-id/CANhcyEUCt-g4JLQU3Q3ofFk_Vt-Tqh3ZdXoLcpT8fjz9LY_-ww%40mail.gmail.com
[2]: https://www.postgresql.org/message-id/CANhcyEUCt-g4JLQU3Q3ofFk_Vt-Tqh3ZdXoLcpT8fjz9LY_-ww%40mail.gmail.com
[3]: https://www.postgresql.org/message-id/TY3PR01MB98895BA6C1D72CB8582CACC4F5682%40TY3PR01MB9889.jpnprd01.prod.outlook.com

Best Regards,
Hayato Kuroda
FUJITSU LIMITED