[rabbitmq-discuss] Rabbit-MQ crashing

[Steve Conover]

We're experiencing this problem as well.  Just from reading the list
it seems that the new persister stuff committed around 12/1 is
supposed to fix it.

I'm curious:

- has this bug indeed been fixed?
- is the code somewhere past bleeding edge?  Would you consider it to be stable?
- please excuse my ignorance, but is there any bug or ticket url that
I can follow to keep track of the fix / when it's been released / etc
?

Regards,
Steve

On Thu, Nov 12, 2009 at 6:25 AM, Tony Garnock-Jones <tonyg at lshift.net> wrote:
> Hi Derek,
>
> (Replying here as well for the archive)
>
> Derek Burdick wrote:
>> I have a durable, fanout exchange and queue.  I post persistent messages
>> to the exchange.  After sending messages for some time, the ERL process
>> stops and I can not restart RabbitMQ without deleting the contents of
>> the Database.  Here is the log from startup:
>> [...]
>>                               {{{badmatch,eof},
>> [{rabbit_persister,internal_load_snapshot,2},
>> [...]
>
> RabbitMQ has become overfull, and crashed during persister log rollover
> as a result. You probably have a zero-byte-long rabbit_persister.LOG,
> and a large rabbit_persister.LOG.previous. Make a backup of the
> .previous file somewhere else, just in case, and then copy it over top
> of the rabbit_persister.LOG file and start the broker. You shouldn't
> need to delete the whole database.
>
> We're working on fixing the underlying cause, but for now, you must not
> store more messages than (some proportion of) your available RAM can
> hold. If you are simply buffering things without trying to consume them,
> then you will probably need to introduce some consumers of some kind :-)
> and if you do have consumers running, but Rabbit is running out of
> memory anyway, you should probably check that you are acknowledging
> deliveries from the broker properly.
>
> Regards,
>  Tony
> --
>  [][][] Tony Garnock-Jones     | Mob: +44 (0)7905 974 211
>   [][] LShift Ltd             | Tel: +44 (0)20 7729 7060
>  []  [] http://www.lshift.net/ | Email: tonyg at lshift.net
>
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