Out of Memory Causing STOMP connection failure
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Key: AMQ-1286
URL: https://issues.apache.org/activemq/browse/AMQ-1286
Project: ActiveMQ
Issue Type: Bug
Components: Connector
Affects Versions: 4.1.1
Environment: linux redhat AS/3
Reporter: Joel Schaubert
Priority: Critical
We are testing ActiveMQ with STOMP clients in our QA environments.
When we finish testing the brokers stay up running idle in their instances.
The next day when we come back for more testing, our STOMP clients hang trying
to read the connection response from the broker.
-bash-2.05b$ ./activemq_tester -d sub
Connecting......OK
Sending connect message.OK
Reading Response.
The activemq logs reveal that an out of memory error made the broker unable to
spin a worker thread to handle the new connection.
After a shutdown and restart of the broker, everything works fine.
Our broker is lightly loaded during the testing and sits idle overnight so it's
not obvious why it would run out of memory.
ame=stomp,ViewType=address,Name=/10.52.90.118_1448
WARN ManagedTransportConnection - Failed to register MBean:
org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=stomp,ViewType=address,Name=/10.52.90.118_3151
WARN ManagedTransportConnection - Failed to register MBean:
org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=stomp,ViewType=address,Name=/10.52.90.118_5824
Exception in thread "ActiveMQ Transport Server:
stomp://plt25m3.etrade.com:61613" java.lang.OutOfMemoryError: unable to create
new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:574)
at
org.apache.activemq.transport.TransportThreadSupport.doStart(TransportThreadSupport.java:44)
at
org.apache.activemq.transport.tcp.TcpTransport.doStart(TcpTransport.java:304)
at org.apache.activemq.util.ServiceSupport.start(ServiceSupport.java:49)
at
org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:54)
at
org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:54)
at
org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:54)
at
org.apache.activemq.broker.TransportConnection.start(TransportConnection.java:816)
at
org.apache.activemq.broker.TransportConnector$1.onAccept(TransportConnector.java:148)
at
org.apache.activemq.transport.tcp.TcpTransportServer.run(TcpTransportServer.java:167)
at java.lang.Thread.run(Thread.java:595)
Exception in thread "RMI RenewClean-[10.52.90.15:59951]"
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:574)
at sun.rmi.transport.tcp.TCPChannel.free(TCPChannel.java:322)
at sun.rmi.server.UnicastRef.free(UnicastRef.java:395)
at sun.rmi.server.UnicastRef.done(UnicastRef.java:412)
at sun.rmi.transport.DGCImpl_Stub.dirty(Unknown Source)
at
sun.rmi.transport.DGCClient$EndpointEntry.makeDirtyCall(DGCClient.java:328)
at
sun.rmi.transport.DGCClient$EndpointEntry.access$1600(DGCClient.java:144)
at
sun.rmi.transport.DGCClient$EndpointEntry$RenewCleanThread.run(DGCClient.java:539)
at java.lang.Thread.run(Thread.java:595)
Using default startup script which allows java vm 512MB and this setting in the
conf/activemq.xml file
<memoryManager>
<usageManager id="memory-manager" limit="512 MB"/>
</memoryManager>
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