On 14/11/11 15:17, Dave Greggory wrote: > We're running RabbitMQ 2.5.1 in production and it crashed last week. The error in the logs is the same as reported in http://old.nabble.com/Can%27t-Determine-Cause-of-541---INTERNAL_ERROR-ts32825393.html The advice, as there, is to upgrade. Matthias.