[rabbitmq-discuss] RabbitMQ crash due to out of memory

Tue Aug 28 21:40:49 BST 2012

Hello,

We recently experienced crashes on 3 RabbitMQ servers.  The  first part
of one dump file is attached.

The Application Error event in Windows event log is also attached.

We are using 3 RabbitMQ servers to serve around 240 nodes. Each node has
12 services (clients).

On average, each server serves about 960 clients.

The version is RabbitMQ 2.8.4 on Erlang R15B01.

We have increased the limit of file descriptors, socket descriptors to
the maximum values.

The high memory watermark was set to 1.6 GB. See the attached picture.

Usually the memory used is just a few hundred MB, saying < 800 MB. We've
never seen it more than 1 GB.

Do you have any idea why out of memory happened? Is there any suggestion
to prevent this from happening again.

We were using version 2.7.1 on Erlang R14B02 before, and we had never
encountered out of memory crash issue.

Best regards,

--Bin Chen

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