From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Geoffrey <lists(at)serioustechnology(dot)com> |
Cc: | PostgreSQL List <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: WAL file question |
Date: | 2009-11-17 14:52:37 |
Message-ID: | 28093.1258469557@sss.pgh.pa.us |
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Lists: | pgsql-general |
Geoffrey <lists(at)serioustechnology(dot)com> writes:
> listing of wal file time stamps for one of our production databases:
> Nov 17 06:22 000000010000006100000013
> Nov 17 06:42 000000010000006100000014
> Nov 17 07:02 000000010000006100000015
> Nov 17 07:22 000000010000006100000016
> Nov 17 07:42 000000010000006100000017
> Nov 17 08:02 000000010000006100000018
> Nov 17 08:22 000000010000006100000019
> Nov 17 08:34 000000010000006100000012
> I would expect that these things are sequential, yet the file that I
> would think would be the oldest (000000010000006100000012) has the
> latest time stamp.
> What am I missing?
Most of those are probably old files that have been renamed into place
for future use --- and the renamer doesn't really worry about reusing
old files in order. I suspect ...12 is the only one that's live.
A look at pg_controldata output would help you check that.
regards, tom lane
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