Re: Listen / Notify - what to do when the queue is full

On Fri, Nov 20, 2009 at 7:51 AM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
>> Note that we don't preserve notifications when the database restarts.
>> But 2PC can cope with restarts. How would that fit together?
>
> The notifications are written to the state file at prepare. They can be
> recovered from there and written to the queue again at server start (see
> twophase_rmgr.c).

Okay, but which of the backends would then leave its pointer at that
place in the queue upon restart?

This is also an issue for the non-restart case, what if you prepare
the transaction in one backend and commit in the other?


Joachim