Hi, On 2018-05-23 00:04:26 +0200, Paolo Crosato wrote: > I managed to recover the log of the first time we run into the issue, the > error was the same but on template1: > > May 8 11:26:46 xxx postgres[32543]: [1154-1] user=,db=,client= ERROR: > found xmin 2600758304 from before relfrozenxid 400011439 > May 8 11:26:46 xxx postgres[32543]: [1154-2] user=,db=,client= CONTEXT: > automatic vacuum of table "template1.pg_catalog.pg_authid"
pg_authid (along with a few other tables) is shared between databases. So that's just hte same error. At which rate are you creating / updating database users / roles?
Once or twice a month. Yesterday I updated some rows on the table with a
update pg_auth_id set rolname=rolname where rolname=...
for some users in the hope to work around the issue, but it didn't work. That's why there are recent xmin on some rows.