Uwe Bartels <uwe.bartels@xxxxxxxxx> writes: > i'm pretty sure there is no repetitive ddl happen on this or any other > table. i checked this with the developers. Well, *something* was blocking that RowExclusiveLock request, and for sure it wasn't autovacuum. There has to be something else going on. > but if i had an anti-wraparound vacuum, then i should see warnings like > these in the log. am i right? I don't have any warnings that day. > WARNING: database "mydb" must be vacuumed within 177009986 transactions > HINT: To avoid a database shutdown, execute a database-wide VACUUM in "mydb". Uh, no. Anti-wraparound vacuums are performed long before you would get to the point of seeing any actual warnings. regards, tom lane -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
