Horton

Re: [BUG] Panic due to incorrect missingContrecPtr after promotion

Alvaro Herrera <alvherre@alvh.no-ip.org>

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From: "alvherre@alvh.no-ip.org" <alvherre@alvh.no-ip.org>
To: "Imseih (AWS), Sami" <simseih@amazon.com>
Cc: Kyotaro Horiguchi <horikyota.ntt@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2022-03-23T17:24:49Z
Lists: pgsql-hackers 
On 2022-Mar-07, Imseih (AWS), Sami wrote:

> I have gone ahead and backpatched this all the way to 10 as well.

Thanks!  I pushed this now.  I edited the test though: I don't
understand why you went to the trouble of setting stuff in order to call
'pg_ctl promote' (in different ways for older branches), when
$node_standby->promote does the same and is simpler to call.  So I
changed the tests to do that.  (I did verify that without the code fix,
the PANIC indeed is thrown.)

Thank again,

-- 
Álvaro Herrera        Breisgau, Deutschland  —  https://www.EnterpriseDB.com/

Commits

  1. Prevent WAL corruption after a standby promotion.

  2. Fix "missing continuation record" after standby promotion