On 1/6/16, 11:14 PM, "Jim Nasby" <Jim.Nasby@xxxxxxxxxxxxxx> wrote: >On 1/6/16 12:01 PM, Scott Rankin wrote: >> I guess we’re back to lock contention? > >Is there by chance an anti-wraparound vacuum happening on that table? > >Actually, for that matter... if autovacuum is hitting that table it's >locking could be causing problems, and it won't release it's locks until >the deadlock detector kicks in. >-- >Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX >Experts in Analytics, Data Architecture and PostgreSQL >Data in Trouble? Get it in Treble! http://BlueTreble.com Hi Jim, Tom, Thanks both of you for your help, by the way. I lowered the deadlock_timeout this morning to 100ms and ran for a little while, but I did not see any lock waits even when the statements ran slowly. Jim, to your point, I enabled auto vacuum logging (log_autovacuum_min_duration=0) but no vacuums are taking place even when I see slow queries. Any other ideas? Thanks, Scott This email message contains information that Motus, LLC considers confidential and/or proprietary, or may later designate as confidential and proprietary. It is intended only for use of the individual or entity named above and should not be forwarded to any other persons or entities without the express consent of Motus, LLC, nor should it be used for any purpose other than in the course of any potential or actual business relationship with Motus, LLC. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify sender immediately and destroy the original message. Internal Revenue Service regulations require that certain types of written advice include a disclaimer. To the extent the preceding message contains advice relating to a Federal tax issue, unless expressly stated otherwise the advice is not intended or written to be used, and it cannot be used by the recipient or any other taxpayer, for the purpose of avoiding Federal tax penalties, and was not written to support the promotion or marketing of any transaction or matter discussed herein. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
