[rabbitmq-discuss] Diagnosing crashes?

[Benno Rice]

Hi guys,

I've got a RabbitMQ instance running on Ubuntu that's suddenly decided to crash about once every 24 hours. How would I go about working out why this is the case?

The system is a Ubuntu 10.04 LTS instance running under VMware. It's fully up to date, and using RabbitMQ from the rabbitmq.com package repo:

% dpkg -l |grep rabbit
ii  rabbitmq-server                     2.7.0-1                           An AMQP server written in Erlang
% dpkg -l |grep erlang-base
ii  erlang-base                         1:13.b.3-dfsg-2ubuntu2.1          Erlang/OTP virtual machine and base applicat

I can't see anything untoward in the rabbitmq log files, but then I'm not entirely sure what to look for, hence the question. Here's a grab from somewhere around one of the restarts:

=INFO REPORT==== 18-Dec-2011::07:17:39 ===
closing TCP connection <0.256.0> from [::1]:51570

=INFO REPORT==== 18-Dec-2011::07:17:42 ===
accepted TCP connection on [::]:5672 from [::1]:54231

=INFO REPORT==== 18-Dec-2011::07:17:42 ===
starting TCP connection <0.443.0> from [::1]:54231

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
Limiting to approx 924 file handles (829 sockets)

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
Memory limit set to 803MB of 2009MB total.

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
msg_store_transient: using rabbit_msg_store_ets_index to provide index

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
msg_store_persistent: using rabbit_msg_store_ets_index to provide index

=WARNING REPORT==== 18-Dec-2011::07:22:08 ===
msg_store_persistent: rebuilding indices from scratch

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
started TCP Listener on [::]:5672

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
accepted TCP connection on [::]:5672 from [::1]:54780

=INFO REPORT==== 18-Dec-2011::07:22:08 ===
starting TCP connection <0.198.0> from [::1]:54780

The sasl log is empty.

If it's an Erlang crash, where would I go hunting for the dumps?

Many thanks,
	Benno.

-- 
Benno Rice
benno at jeamland.net