From: | David Roid <dataroid(at)gmail(dot)com> |
---|---|
To: | Federico Di Gregorio <fog(at)dndg(dot)it>, Daniele Varrazzo <daniele(dot)varrazzo(at)gmail(dot)com> |
Cc: | psycopg(at)postgresql(dot)org |
Subject: | Re: psycopg2 hang with multithread frequent queries |
Date: | 2012-09-17 23:24:08 |
Message-ID: | CAKN1bq7zxMHy52zffxiM=dtQMLkzDXBOxbuF2pWiFLkkwEK84w@mail.gmail.com |
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Lists: | psycopg |
Hi Daniele, Federico,
Just want to know, if I keep signal handler but switch from thread to
subprocess, i.e. put the signal handler code with database queries into
another process, is that safe?
Regards
-David
2012/9/17 Federico Di Gregorio <fog(at)dndg(dot)it>
> On 17/09/2012 10:21, Daniele Varrazzo wrote:
> > On Fri, Sep 14, 2012 at 6:15 PM, David Roid <dataroid(at)gmail(dot)com> wrote:
> >
> >> > No long-running trac, commit is done fair often. I also tried "one
> conn for
> >> > all threads" vs "one conn for one thread", and "one cursor all the
> way" vs
> >> > "use and throw away cursor", issue remains.
> > David has provided me further information about his setup and a gcc
> > traceback, from which it was obvious that he was performing database
> > queries from a signal handler. It seems he is not experiencing any
> > more problems since he got rid of this unsafe practice.
>
> Nice to know.
>
> federico
>
> --
> Federico Di Gregorio federico(dot)digregorio(at)dndg(dot)it
> Studio Associato Di Nunzio e Di Gregorio http://dndg.it
> I did appreciate the irony that I was whining about encoding issues on
> a mailing list that was unable to show those chars, too.
> -- Antti S. Lankila to mono-devel-list@
>
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