Rob Sargent <robjsargent@xxxxxxxxx> writes: > On 4/19/22 00:06, David G. Johnston wrote: >> On Monday, April 18, 2022, bhargav kamineni <kbn98406@xxxxxxxxx> wrote: >> It seems vacuum is behaving somewhat weird on postgres database , >> observing below HINTS on the vacuum logs >> WARNING: oldest xmin is far in the past > This site has lots of useful queries for this sort of issue: > https://www.shanelynn.ie/postgresql-find-slow-long-running-and-blocked-queries. > I think you're looking for a very old transaction that is probably not > going to finish, must be terminated. Yeah, that. Manual vacuuming isn't going to help until you get rid of the old open transaction. Look into pg_prepared_xacts and pg_stat_activity. regards, tom lane
