[rabbitmq-discuss] Rabbit - Crash?

Simon MacMullen simon at rabbitmq.com
Thu Sep 27 10:14:41 BST 2012


On 26/09/12 23:45, Matthias Radestock wrote:
>> I think you're right. The node Rabbit is running on is a development one
>> with limited disk space.
>>
>> Knowing that, I put the following in rabbit config:
>>
>>    {rabbit, [{disk_free_limit, 2097152}
>>               ]},
>>
>> It might have influenced.
>> I just did not expect rabbit to crash, rather to raise some alarms.
>
> I suspect the rabbit logs will show that an alarm was raised.
>
> Rabbit's response to such an alarm is to block all publishers, since
> messages are generally the main source of memory and disk space growth
> in rabbit, by some margin.

In addition, if the alarm goes off when there is only 2MB of disc space 
left, you're essentially stuck anyway - even blocking publishers is very 
unlikely to happen fast enough to stop you from consuming disc space 
before you run out of space.

Cheers, Simon

-- 
Simon MacMullen
RabbitMQ, VMware


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