Re: pg_dump: NOTICE: ShmemAlloc: out of memory

Tom Lane wrote:
> Brad Paul <bradpaul(dot)a(dot)with(at)long(dot)tail(dot)bdp-optics(dot)com> writes:
>
>>I'm trying to dump a database called stocks. I did:
>>pg_dump stocks > stocks.sql
>>pg_dump: NOTICE: ShmemAlloc: out of memory pg_dump: Attempt to lock table
>>"slab" failed. ERROR: LockAcquire: holder table out of memory
>
>
>>This database has 3478 tables.
>
>
> You probably need to increase max_locks_per_transaction. Or better,
> rethink your schema. Thousands of tiny tables is usually a bad idea
> compared to a smaller number of (properly indexed) tables.

The number 3478 is coincidentally close to the number of NYSE
listed stocks (which drops a few here, picks up a few there)
over time. Although, as of yesterday, it was 3611. Hmmm...sounds
suspicious... :-)

Mike Mascari
mascarm(at)mascari(dot)com