RE: Slow catchup of 2PC (twophase) transactions on replica in LR

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

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

To: 'Amit Kapila' <amit.kapila16@gmail.com>, "Zhijie Hou (Fujitsu)" <houzj.fnst@fujitsu.com>

Cc: "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>, Vitaly Davydov <v.davydov@postgrespro.ru>, Ajin Cherian <itsajin@gmail.com>

Date: 2024-07-16T05:17:06Z

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 →

Fix random failure in 021_twophase.
- 0dcea330babd 18.0 landed
Allow altering of two_phase option of a SUBSCRIPTION.
- 1462aad2e447 18.0 landed
Doc: use true|false rather than on|off for "failover" option
- fa65a022db26 17.0 cited
Support an optional asynchronous commit mode, in which we don't flush WAL
- 4a78cdeb6b59 8.3.0 cited

Attachments

v18-0001-Allow-altering-of-two_phase-option-of-a-SUBSCRIP.patch (application/octet-stream) patch v18-0001
v18-0002-Alter-slot-option-two_phase-only-when-altering-t.patch (application/octet-stream) patch v18-0002
v18-0003-Notify-users-to-roll-back-prepared-transactions.patch (application/octet-stream) patch v18-0003

Dear Amit, Hou,

Thanks for giving comments! PSA new versions.
What's new:

0001: included Hou's patch [1] not to overwrite slot options.
      Some other comments were also addressed.
0002: not so changed, just rebased.
0003: Typo was fixed, s/Alter/After/.

[1]: https://www.postgresql.org/message-id/OS3PR01MB57184E0995521300AC06CB4B94A72%40OS3PR01MB5718.jpnprd01.prod.outlook.com 

Best regards,
Hayato Kuroda
FUJITSU LIMITED