| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Andrej Vanek <andrej(dot)vanek(dot)sk(at)gmail(dot)com> |
| Cc: | Bill Moran <wmoran(at)potentialtech(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: deadlock of lock-waits (on transaction and on tuple) using same update statement |
| Date: | 2014-09-25 14:05:02 |
| Message-ID: | 20140925140502.GX5311@eldon.alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-general |
Andrej Vanek wrote:
> Hi,
>
>
> now I've checked release-notes of 9.3.5 (my version 9.3.4)- found a fix
> which probably could lead to my deadlocks:
>
> > Fix race condition when updating a tuple concurrently locked by another
> > process (Andres Freund,Álvaro Herrera)
>
> How can I make sure I've run into this bug?
Update and see if you can reproduce the bug there. If you can, let us
know; I didn't trace through your example and won't unless you confirm
it's still an issue.
It's a bad idea to run any 9.3 version other than the latest one. There
are some ugly bugs in there.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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