[rabbitmq-discuss] rabbit chokes?

Thu Nov 5 15:47:08 GMT 2009

Hi Owen,

You've got two options for this. Either you can write a client app to do a
queue purge, or you can install the BQL plugin which provides a console that
you can execute commands on.

The page at http://www.rabbitmq.com/rabbitmq-bql.html#installation discusses
installation of this plugin - once you've done that, you should be able to
execute a command such as:
  BQL> purge queue celerygraph;

Thanks,
Paul.

On Thu, Nov 5, 2009 at 2:22 PM, Owen Nelson <onelson at ringling.edu> wrote:

> Perhaps this is the culprit?
>
> rabbitmqctl list_queues -p gmate_test
> Listing queues ...
> celerygraph     277558
> celery  0
> ...done.
>
> What's the best way to clear that out?  Looking at the man page for
> rabbitmqctl, the only thing I see that would potentially do it would be
> to reset the node, then rebuild the vhosts/users.  Is that the only way?
>
>
> Matthias Radestock wrote:
> > Owen,
> >
> > Owen Nelson wrote:
> >> =INFO REPORT==== 1-Nov-2009::09:13:43 ===
> >>     alarm_handler: {set,{system_memory_high_watermark,[]}}
> >>
> >> =INFO REPORT==== 1-Nov-2009::09:13:44 ===
> >>     alarm_handler: {clear,system_memory_high_watermark}
> >
> > These messages indicate that rabbit is running low on memory and is
> > attempting to throttle producers.
> >
> > I recommend checking the status of your rabbit using the 'rabbitmqctl
> > list_* ...' commands. Chances are you have lots of messages in queues,
> > or perhaps lots of queues, exchanges or bindings.
> >
> >
> > Regards,
> >
> > Matthias.
>
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