Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-08-17 Thread Jim Vanns
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Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-24 Thread Jim Vanns
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Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-24 Thread Jim Vanns
Park Nottingham, NG7 > 2PZ England Telephone numbers: +44 (0)115 951 88 00 (main) For other > office locations see: http://www.romaxtech.com/Contact > = === E-mail: > i...@romaxtech.com Website: www.romaxtech.com > = Confidentiality > Statement This transmission is for the addressee only and contains > information that is confidential and privileged. Unless you are the > named addressee, or authorised to receive it on behalf of the > addressee you may not copy or use it, or disclose it to anyone else. > If you have received this transmission in error please delete from > your system and contact the sender. Thank you for your cooperation. > = > -- Jim Vanns Systems Programmer Framestore -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance

Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-24 Thread Jim Vanns
On Tue, 2012-07-24 at 08:30 +0800, Craig Ringer wrote: > On 07/23/2012 10:46 PM, Jim Vanns wrote: > > Nothing obvious - and we log a fair amount. No tmp table creations, > > no locks held. > > > > To add to this EXPLAIN reports it took only 0.23ms to run (for example)

Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-23 Thread Jim Vanns
On Mon, 2012-07-23 at 11:09 -0400, Tom Lane wrote: > Jim Vanns writes: > > We're seeing SELECT statements and even EXPLAIN (no ANAYLZE) > > statements hang indefinitely until *something* (we don't know what) > > releases some kind of resource or no longer becomes a

Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-23 Thread Jim Vanns
On Mon, 2012-07-23 at 09:53 -0400, Andrew Dunstan wrote: > On 07/23/2012 04:41 AM, Jim Vanns wrote: > > We're seeing SELECT statements and even EXPLAIN (no ANAYLZE) > > statements hang indefinitely until *something* (we don't know what) > > releases some kind of

Re: [PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-23 Thread Jim Vanns
ail: i...@romaxtech.com Website: www.romaxtech.com > = Confidentiality > Statement This transmission is for the addressee only and contains > information that is confidential and privileged. Unless you are the > named addressee, or authoris

[PERFORM] Odd blocking (or massively latent) issue - even with EXPLAIN

2012-07-23 Thread Jim Vanns
vacuum_max_workers = 4 PPS. I've just noticed that our memory configuration is over subscribed! shared_buffers + effective_cache_size > Total available RAM! Could this be the root cause somehow? -- Jim Vanns Systems Programmer Framestore -- Sent via pgsql-performance mailing