[Zope-DB] ZPsycopgDA connection failing

Davis Mr MR m.r.davis at cranfield.ac.uk
Wed Jun 7 11:24:17 EDT 2006

Hi Charlie,

I was afriad of that. Looks like the firewall is killing it, and it is
not telling the DA.

Will need to speak to our network people.

Thanks for your help.

-----Original Message-----
From: Charlie Clark [mailto:charlie at egenix.com] 
Sent: 07 June 2006 15:53
To: Davis Mr MR
Cc: zope-db at zope.org
Subject: Re: [Zope-DB] ZPsycopgDA connection failing

On 2006-06-07 at 16:17:13 [+0200], Davis Mr MR
<m.r.davis at cranfield.ac.uk>
> Hi,
> My connection to Postgres keeps failing every couple of hours. I did 
> read that there was a problem with some versions of this. I'm using
> 2.0b6 at the moment.
> Does anyone have a version number that I can try that will 
> re-establish a connection on failure.


if you look at the DA (db.py) source you will see that it actually tries
to reconnect if no connection is available so the problem must be
somewhere else. PostgreSQL connections themselves don't timeout but if
the database is on a network and the connection is dropped then the DA
may well think it is connected when it isn't. This is difficult to solve
in the DA and you need to know why the connection is being dropped


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