[rabbitmq-discuss] intermittent disconnects under load

[Gojko Adzic]

Hi,

we had a round of stress testing and got intermittent connection errors. 
I don't know exactly what causes it but the Java client throws this 
exception from a background thread and packets don't go completely to 
the client. We ran it on a cluster of two nodes, using Java clients.

Exception in thread "Thread-22" 
com.rabbitmq.client.ShutdownSignalException: connection error; reason: 
java.lang.NullPointerException
at com.rabbitmq.client.impl.AMQConnection.shutdown(AMQConnection.java:588)
at 
com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:454)
Caused by: java.lang.NullPointerException
at 
com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:438)


Line above 438 of AMQConnection says "//FIXME: catch 
NullPointerException and throw more informative one?" so I guess this is 
a well known problem - any hints on what is causing it and how to work 
around it until a fix is in place?

gojko