Обсуждение: no entry on pg_database for a live database
I have a situation I thought was impossible.
I have a live postgres database with 4 application tables. I can access it through PSQL.
But there is no record of this database on the PG_DATABASE catalog table.
And I therefore cannot perform a PG_DUMP backup because it errors with,
You guessed it, ‘No entry on pg_database’ We haven’t done backups
As these are workfile temporary tables. But I’ve primed one of these
Tables with permanent data for performance.
I’m running version 7.4.5. Do I have to do a drop-recreate or is there
Some other way around this?
Any ideas would be appreciated
Mark Steben
Senior Database Administrator
@utoRevenue™
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"Mark Steben" <msteben@autorevenue.com> writes: > I have a live postgres database with 4 application tables. I can access it > through PSQL. > But there is no record of this database on the PG_DATABASE catalog table. Try vacuuming pg_database. If that works, it means your routine vacuuming procedures need some re-thinking, because they are missing (at least) pg_database. > I'm running version 7.4.5. You're doing yourself no favors by failing to update. The current release in that branch is 7.4.19. regards, tom lane
Mark Steben wrote: > > I'm running version 7.4.5. Do I have to do a drop-recreate or is there > > Some other way around this? > > There has been mention that some of the old versions of 7.x had data critical issues that are fixed in newer updates. My first suggestion would be to try it with 7.4.19 (using a copy of your data files of course) As well as planning an upgrade to 8.1 or 8.2 -- Shane Ambler pgSQL (at) Sheeky (dot) Biz Get Sheeky @ http://Sheeky.Biz
Thanks Tom - that did the trick We will be upgrading to 8.2 within the next couple weeks. -----Original Message----- From: Tom Lane [mailto:tgl@sss.pgh.pa.us] Sent: Tuesday, January 22, 2008 12:20 PM To: Mark Steben Cc: pgsql-admin@postgresql.org Subject: Re: [ADMIN] no entry on pg_database for a live database "Mark Steben" <msteben@autorevenue.com> writes: > I have a live postgres database with 4 application tables. I can access it > through PSQL. > But there is no record of this database on the PG_DATABASE catalog table. Try vacuuming pg_database. If that works, it means your routine vacuuming procedures need some re-thinking, because they are missing (at least) pg_database. > I'm running version 7.4.5. You're doing yourself no favors by failing to update. The current release in that branch is 7.4.19. regards, tom lane
"Mark Steben" <msteben@autorevenue.com> writes: > Thanks Tom - that did the trick In that case, you were missing pg_database and probably other system catalogs too in your vacuuming. > We will be upgrading to 8.2 within the next couple weeks. I'd recommend making sure you have vacuumed all system catalogs before you try to pg_dump, else some of the catalog entries may be invisible to pg_dump :-( FWIW, 8.2 should be proof against this type of problem recurring, because it takes proactive steps to avoid transaction ID wraparound. 7.4 left that up to the DBA ... regards, tom lane