[pgpool-general: 7377] Re: Watchdog New Primary & Standby shutdown when Node 0 Fails

Tatsuo Ishii ishii at sraoss.co.jp
Sat Dec 19 21:10:07 JST 2020

> On Sat, Dec 19, 2020 at 5:48 AM Tatsuo Ishii <ishii at sraoss.co.jp> wrote:
>> Ok, let me clarify. You think that 4.2.0's watchdog code has a problem
>> here:
>> https://github.com/pgpool/pgpool2/blob/V4_2_0_RPM/src/watchdog/watchdog.c#L2244
>> and you think it causes your issue (node 0 dead).
>> So you wonder if commit 70e0b2b93715094823102c9b1879e83fa75c7913
>> would solve the issue.
> Yes, that's correct. this commit should solve the mentioned issue.
>> I am not sure because according to the commit message, it was intended
>> to fix the problem of wd_cli command (which is new in 4.2). Probably
>> you'd better ask the commit author (Muhammad Usama).  I have added his
>> email address in the Cc: field.
> Both wd_cli and the lifecheck mechanism uses the same path and commit
> messages
> only mentions the wd_cli.
> Looking at the email I think it's a very critical issue and we should do a
> point
> release for 4.2
> The issue was caused by an oversight by the "simplifying watchdog
> configuration" feature
> which was introduced in 4.2, so the older versions should not have the same
> problem.
> Thanks
> Best regards
> Muhammad Usama

Thank you for the explanation. Next scheduled minor release is
February 18th, 2021 and it's a long way off. I am going to discuss
with Pengbo about this.

Best regards,
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php

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