Re: Strange slowness
От | Russ Neufeld |
---|---|
Тема | Re: Strange slowness |
Дата | |
Msg-id | 68683144-6732-4E94-807E-23BE43EC0977@nasuni.com обсуждение исходный текст |
Ответ на | Re: Strange slowness (Federico Di Gregorio <fog@dndg.it>) |
Список | psycopg |
Thanks Federico. I think you might be right - pgbouncer does not seem to be maintaining connections to postgresql for verylong, and as a result when a load spike comes in I suspect there's a fair bit of time and contention in reestablishingthem. I'm looking there now. On May 1, 2012, at 5:54 AM, Federico Di Gregorio wrote: > On 30/04/12 23:29, Russ Neufeld wrote: >> Hi all, >> >> I'm investigating some occasional slowness in our API servers, and I've >> hit upon some strange behavior that I can't explain. I'm hoping someone >> on this list can help. > > Hi Russ, > > you may want to configure PostgreSQL to log connections and queries, > with execution times. Then cross-check PostgreSQL, Django and pgbouncer > logs to understand exactly where that 6 seconds are spent. I bet on > pgbouncer connecting to PostgreSQL (SSL?) but we don't have enough data > to do a proper analysis here. > > federico > > -- > Federico Di Gregorio federico.digregorio@dndg.it > Studio Associato Di Nunzio e Di Gregorio http://dndg.it > Quis custodiet ipsos custodes? -- Juvenal, Satires, VI, 347 > > -- > Sent via psycopg mailing list (psycopg@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/psycopg
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