1 Reply Latest reply on Jul 29, 2015 9:12 AM by jbertram

Getting out of memory exception while starting Messaging server in cluster

jainarvi Jul 29, 2015 7:33 AM

Version - Wildfly 8.2.0 final

Hi,

I am using wildfly as JMS messaging cluster. Whenever I start messaging server, I am getting following exception:

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) Exception in thread "hornetq-discovery-group-thread-dg-group1" java.lang.OutOfMemoryError: Java heap space

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) at org.hornetq.core.buffers.impl.ChannelBufferWrapper.readSimpleStringInternal(ChannelBufferWrapper.java:86)

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) at org.hornetq.core.buffers.impl.ChannelBufferWrapper.readStringInternal(ChannelBufferWrapper.java:115)

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) at org.hornetq.core.buffers.impl.ChannelBufferWrapper.readString(ChannelBufferWrapper.java:93)

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) at org.hornetq.core.cluster.DiscoveryGroup$DiscoveryRunnable.run(DiscoveryGroup.java:300)

2015-07-27 23:41:38,603 ERROR [stderr] (hornetq-discovery-group-thread-dg-group1) at java.lang.Thread.run(Thread.java:745)

Can anyone help?

Thanks.

1. Re: Getting out of memory exception while starting Messaging server in cluster

jbertram Jul 29, 2015 9:12 AM (in response to jainarvi)

Based on the information you've provided so far I'd say you simply need more heap space. If you want a deeper investigation than that then you should provide more details about your use-case and the exact circumstances when the error occurs.

If you're use-case is simply "start the messaging server" with the default clustered configuration from Wildfly 8.2 then most (if not all) users should be seeing this same problem. However, to my knowledge this is not a commonly occurring problem. That suggests there's more to your use-case than you're saying.
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