Re: 'SGT DETAIL: Could not open file "pg_clog/05DC": No such file or directory' - what to do now?

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On Wed, May 4, 2011 at 12:37 PM, Tomasz Chmielewski <mangoo@xxxxxxxx> wrote:
> /var/log/postgresql/postgresql_log.1:May  3 18:24:49 db10 postgres[21363]: [26999-1] 2011-05-03 18:24:49 SGT ERROR:  could not access status of transaction 1573786613
> /var/log/postgresql/postgresql_log.1-May  3 18:24:49 db10 postgres[21363]: [26999-2] 2011-05-03 18:24:49 SGT DETAIL:  Could not open file "pg_clog/05DC": No such file or directory.
> /var/log/postgresql/postgresql_log.1-May  3 18:24:49 db10 postgres[21363]: [26999-3] 2011-05-03 18:24:49 SGT STATEMENT:  SELECT 1 FROM core_wot_seq FOR UPDATE

So a pg_clog file disappeared.

> Today I have this:
>
> /var/log/postgresql/postgresql_log:May  4 22:43:44 db10 postgres[15773]: [555-1] 2011-05-04 22:43:44 SGT ERROR:  could not access status of transaction 1612337841
> /var/log/postgresql/postgresql_log-May  4 22:43:44 db10 postgres[15773]: [555-2] 2011-05-04 22:43:44 SGT DETAIL:  Could not open file "pg_clog/0601": No such file or directory.
> /var/log/postgresql/postgresql_log-May  4 22:43:44 db10 postgres[15773]: [555-3] 2011-05-04 22:43:44 SGT STATEMENT:  SELECT 1 FROM core_wbl_seq FOR UPDATE

Then another pg_clog file disappeared.

Is it possible there's some rogue process deleting files in pg_clog
somehow?  Have you run an fsck on this drive to make sure it's not got
any file system errors?

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