On Thu, 2023-05-04 at 15:49 +0000, Evgeny Morozov wrote: > Well, the problem happened again! Kind of... This time PG has not > crashed with the PANIC error in the subject, but pg_dumping certain DBs > again fails with > > > pg_dump: error: connection to server on socket > "/var/run/postgresql/.s.PGSQL.5434" failed: FATAL: index > "pg_class_oid_index" contains unexpected zero page at block 0 If you dumped and restored the database after the last time the error happened, there must be a systemic problem. Perhaps you have bad hardware, or a problem with a storage driver, file system or some other low-level software component. It might of course be a PostgreSQL bug too, but it is hard to say without a way to reproduce... Yours, Laurenz Albe
