Re: BUG #17903: There is a bug in the KeepLogSeg()
Nathan Bossart <nathandbossart@gmail.com>
From: Nathan Bossart <nathandbossart@gmail.com>
To: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: zhjwpku@gmail.com, xu.xw2008@163.com, pgsql-bugs@lists.postgresql.org
Date: 2023-04-27T21:47:46Z
Lists: pgsql-bugs
On Tue, Apr 25, 2023 at 01:14:52PM +0900, Kyotaro Horiguchi wrote: > At Mon, 24 Apr 2023 12:14:52 -0700, Nathan Bossart <nathandbossart@gmail.com> wrote in >> When determining the oldest segment that must be kept for >> replication slots, KeepLogSeg() might calculate a segment number >> ahead of the one for the LSN given to the function. This causes > > Maybe the KeepLogSeg() is a mistake of > XLogGetReplicationSlotMinimumLSN()? I adjusted the commit message to call out that function explicitly. Also, I decided to go with the "keep < recptr" approach since there's no reason to do anything in that block otherwise. Thanks! -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
Commits
-
Prevent underflow in KeepLogSeg().
- be40dd63e00d 13.11 landed
- 137003036972 14.8 landed
- c98b06e2f865 15.3 landed
- b72623671d9c 16.0 landed