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Re: [SQL] pg_multixact issues

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On Fri, Sep 26, 2014 at 1:36 PM, Dev Kumkar <devdas.kumkar@xxxxxxxxx> 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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