Re: SV: Log files polluted with permission denied error messages after every 10 seconds

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Andrus <kobruleht2(at)hot(dot)ee>
Cc: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Niels Jespersen <NJN(at)dst(dot)dk>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: SV: Log files polluted with permission denied error messages after every 10 seconds
Date: 2021-03-22 07:44:52
Message-ID: YFhK9A6khOLj+QgN@paquier.xyz
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On Mon, Mar 22, 2021 at 09:25:26AM +0200, Andrus wrote:
> Errors in pg_wal directory seems not to occur in patched version. Errors in
> pg_stat_tmp still occur. Yesterdays log introduces new error message
>
> using stale statistics instead of current ones because stats collector is
> not responding
>
> 2021-03-21 23:51:25 EET     autovacuum worker LOG:  using stale statistics
> instead of current ones because stats collector is not responding

The renaming of stats files involves just pgrename(), which is a
completely separate code path than the one of the WAL segments. This
requires a separate investigation.
--
Michael

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