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Re: pg_dump blocking create database?
- From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
- To: Dan Harris <fbsd(at)drivefaster(dot)net>
- Cc: PostgreSQL Performance <pgsql-performance(at)postgresql(dot)org>
- Subject: Re: pg_dump blocking create database?
- Date: Wed, 12 Sep 2007 23:21:13 -0400
Dan Harris <fbsd(at)drivefaster(dot)net> writes: > My PG server came to a screeching halt yesterday. Looking at top saw a very > large number of "startup waiting" tasks. A pg_dump was running and one of my > scripts had issued a CREATE DATABASE command. It looks like the CREATE DATABASE > was exclusive but was having to wait for the pg_dump to finish, causing a > massive traffic jam of locks behind it. > Once I killed the pg_dump process, things returned to normal. > Version 8.0.12. Is this a bug? It's operating as designed :-(. 8.1 and later use less strict locking on pg_database during create/drop database. regards, tom lane
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