Re: Listen / Notify - what to do when the queue is full - Mailing list pgsql-hackers

From Andreas 'ads' Scherbaum
Subject Re: Listen / Notify - what to do when the queue is full
Date
Msg-id 20091119171848.287225f8@iridium.wars-nicht.de
Whole thread Raw
In response to Re: Listen / Notify - what to do when the queue is full  (Joachim Wieland <joe@mcknight.de>)
List pgsql-hackers
On Thu, 19 Nov 2009 14:23:57 +0100 Joachim Wieland wrote:

> On Thu, Nov 19, 2009 at 1:51 PM, Andreas 'ads' Scherbaum
> <adsmail@wars-nicht.de> wrote:
> > And in addition i don't like the idea of having the sender sitting
> > around until there's room for more messages in the queue, because some
> > very old backends didn't remove the stuff from the same.
> 
> The only valid reason why a backend has not processed the
> notifications in the queue
> must be a backend that is still in a transaction since then (and has
> executed LISTEN
> some time before).

Yes, i know. The same backend is probably causing more trouble
anyway (blocking vacuum, xid wraparound, ...).

--             Andreas 'ads' Scherbaum
German PostgreSQL User Group
European PostgreSQL User Group - Board of Directors
Volunteer Regional Contact, Germany - PostgreSQL Project


pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: Listen / Notify - what to do when the queue is full
Next
From: "Florian G. Pflug"
Date:
Subject: Re: Listen / Notify - what to do when the queue is full