[rabbitmq-discuss] Rabbit MQ Crash

Tue Apr 8 08:33:17 BST 2014

Hi Matthais,

What I sent you was everything I had. However, I did check ps -aux after
the crash and rabbitmq-server was definitely not in there. I will turn off
the cron jobs that automatically restart rabbitmq, and I'll let you know if
I see it again.

Here is the output of the command.

$ sudo rabbitmqctl eval 'rabbit_misc:os_cmd("/bin/df -kP
/var/lib/rabbitmq/mnes
ia/").'
"Filesystem                                             1024-blocks    Used
Available Capacity Mounted
on\n/dev/disk/by-uuid/36fd30d4-ea87-419f-a6a4-a1a3cf290ff1    10320184
6348300   3447648      65% /\n"
...done.

Also, I'm not sure whether it will help you, but attached is a screenshot
of the rabbitmq console.  If you see the start of the top chart at 19:00,
there is a sharp increase in the queued messages.  That's when I restarted
rabbitmq after the crash.  Everything before that was flat.  Another point
to note is that it currently says that the disk space is unavailable.  I
definitely remember seeing a value there at some point before, I don't know
what causes that to occur.

I've turned off my rabbimq auto-start cron jobs, I'll let you know if I see
the crash again.

Thanks again.

Best,

Michael Sander

On Tue, Apr 8, 2014 at 1:18 AM, Matthias Radestock <matthias at rabbitmq.com>wrote:

> Michael,
>
>
> On 08/04/14 02:50, Michael Sander wrote:
>
>> Full logs are attached.  You'll notice that it crashes pretty often now.
>>
>
> The disk_monitor is crashing frequently, yes, but in none of the instances
> in the logs that actually took down rabbit (notice that there are no rabbit
> starts recorded in the rabbit.log); the disk_monitor restarts just fine and
> the bunny lives on.
>
> Do you have the logs covering the time period around the crash?
>
>
>  Here are the output of the commands
>>
>>     $ sudo rabbitmqctl eval 'rabbit_misc:os_cmd("/bin/df -kP
>>     /var/lib/rabbitmq/mnesia/")'
>>     Error: syntax error before:
>>
>
> Ah, sorry, missed a full stop. Should be
>
>     sudo rabbitmqctl eval 'rabbit_misc:os_cmd("/bin/df -kP
> /var/lib/rabbitmq/mnesia/").'
>
>
> Matthias.
>
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