| From: | Dev Kumkar <devdas(dot)kumkar(at)gmail(dot)com> |
|---|---|
| To: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: [SQL] pg_multixact issues |
| Date: | 2014-09-30 15:10:28 |
| Message-ID: | CALSLE1PzxeRd0RAmC20-X01TijiR-aSjxAVjfze6keW_iYMdCA@mail.gmail.com |
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| Lists: | pgsql-general pgsql-hackers pgsql-sql |
On Fri, Sep 26, 2014 at 1:36 PM, Dev Kumkar <devdas(dot)kumkar(at)gmail(dot)com> wrote:
> Received the database with huge pg_multixact directory of size 21G and
> there are ~82,000 files in "pg_multixact/members" and 202 files in
> "pg_multixact/offsets" directory.
>
> Did run "vacuum full" on this database and it was successful. However now
> am not sure about pg_multixact directory. truncating this directory except
> 0000 file results into database start up issues, of course this is not
> correct way of truncating.
> FATAL: could not access status of transaction 13224692
>
> Stumped ! Please provide some comments on how to truncate pg_multixact
> files and if there is any impact because of these files on database
> performance.
>
Facing this issue on couple more machines where pg_multixact is huge and
not being cleaned up. Any suggestions / troubleshooting tips?
Regards...
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