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Re: Lock issue when trying to vacuum db


  • From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
  • To: "Jess Balint" <jbalint(at)gmail(dot)com>
  • Cc: pgsql-hackers(at)postgresql(dot)org
  • Subject: Re: Lock issue when trying to vacuum db
  • Date: Mon, 19 Dec 2005 22:03:29 -0500
  • Message-id: <24291(dot)1135047809(at)sss(dot)pgh(dot)pa(dot)us>

"Jess Balint" <jbalint(at)gmail(dot)com> writes:
> Hi, I have a database that had a large table in it. I dropped the table, but
> when I try to full vacuum the db, it just freezes indefinitely. There are
> shared locks held on this that I can't identify. I've tried bouncing this
> instance and ran some queries immediately after starting up.

AFAIK, the only way for a lock to survive a database restart is a
prepared transaction.  Are you running 8.1, and if so what does
pg_prepared_xacts show?

			regards, tom lane



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