On Thu, Jan 7, 2010 at 11:29 AM, Alvaro Herrera
<alvherre@commandprompt.com> wrote:
> Aleksey Tsalolikhin escribió:
>
>> I do have a cron job that cleans files older than 2 days out of the
>> pg_xlog directory;
>
> Bad, bad idea. Get rid of that. Perfect way to corrupt your system.
> Postgres removes pg_xlog files automatically when they are no longer
> necessary. If it doesn't remove them, something is happening and you
> need to fix *that*. Deleting files by hand only works around the
> wasted-disk-space symptom in a bad way.
Completely agreed.
>> How do I get Postgres to stop trying to rsync
>> 00000001000000350000006E, and to do rsync all the WAL files that ARE
>> there?
>
> You're screwed. You need to get a new base backup; all the files
> you have archived previous to 00000001000000350000006E are useless.
>
> You can get out of the problem by creating a dummy file with that name
> in pg_xlog, but keep in mind that the archive is now completely useless
> and unrecoverable.
Or remove pg_xlog/archive_status/00000001000000350000006E.ready instead
of creating a dummy file. Postgres tries to archive the WAL files whose
.ready file exists in archive_status directory.
And, note that you must get out of the archiving problem *before* making
a new base backup because pg_stop_backup() waits until the last WAL file
filled during backup has been archived. Otherwise, pg_stop_backup() would
get stuck.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
