| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | valgog(at)gmail(dot)com |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: BUG #8647: Backend process hangs and becomes unkillable when SSL client looses connection |
| Date: | 2013-12-05 09:59:49 |
| Message-ID: | 20131205095949.GA11997@alap2.anarazel.de |
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| Lists: | pgsql-bugs |
On 2013-12-02 19:30:15 +0000, valgog(at)gmail(dot)com wrote:
> If a TCP connection of the SSL client (psql in our case) is gone, during
> execution of a query, that is preparing a big dataset, the process on the
> server side (the backend process) becomes unkillable, and as soon as the OS
> cleans the TCP connection away, the process starts to consume up to 60% of
> system time for it's processor and is still unkillable.
> If needed I could try to do some more experiments and collect dbg and strace
> information about that hanging processes.
Yes, that would be good. Possibly also a profile showing where time is
spent.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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