On 10/27/2015 07:44 AM, Andres Freund wrote: >> Unlinking old pg_clog files is strictly an optimization. If you were to >> > comment out every unlink() call in slru.c, the only ill effect on CLOG is >> > the >> > waste of disk space. Is the same true of MultiXact? > Well, multixacts are a lot larger than the other SLRUs, I think that > makes some sort of difference.
And by "a lot larger" we're talking like 50X to 100X. I regularly see pg_multixact directories larger than 1GB. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers