On Wed, Nov 10, 2010 at 12:28:46PM -0800, Bryce Nesbitt wrote: > I have a cluster with log_min_duration_statement set to log slow > queries. Presently what I'm tracking down is almost certainly a lock > problem. Is there any analog of log_min_duration_statement for locks? > If there is a lock on a certain critical tables for more than a few > hundredths of a second I want to know.
You could try log_lock_waits: http://www.postgresql.org/docs/8.3/interactive/runtime-config-logging.html#GUC-LOG-LOCK-WAITS It's defined in terms of deadlock_timeout, and reducing that to "a few hundredths of a second" like you're interested in might cause all kinds of load from the deadlock detector. -- Joshua Tolley / eggyknap End Point Corporation http://www.endpoint.com
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