| From: | Dev Kumkar <devdas(dot)kumkar(at)gmail(dot)com> |
|---|---|
| To: | Bill Moran <wmoran(at)potentialtech(dot)com> |
| Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Lock Management: Waiting on locks |
| Date: | 2014-11-26 18:57:42 |
| Message-ID: | CALSLE1OtoqKK4i6LK3GpmF+SuKFZhaAKNhourZ5fL62jKp+Wgg@mail.gmail.com |
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| Lists: | pgsql-general |
Thanks Bill !
On Wed, Nov 26, 2014 at 9:07 AM, Bill Moran <wmoran(at)potentialtech(dot)com>
wrote:
> In addition to what you're getting from that query, include the xact_start
> and
> state_change columns from pg_stat_activity. My guess is that your code is
> starting a transaction, then running a query, then processing the query
> results before committing the transaction. Since query locks are held for
> the duration of the transaction, this will cause the locks to be held for a
> long time if the processing step takes a while.
>
Actually each of this transaction is just single INSERT or single UPDATE
query.
> If that turns out not to be the problem, then you'll probably need to
> provide
> a bit more detail before anyone will be able to provide a better answer. I
> mean, I'm even guessing that it's an app making the queries.
Can you let me know what exact details should be provided here?
Regards...
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