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From ashish <ashishdhawan...@gmail.com>
Subject ActiveMQ - 5.3.2 - connection taking too long to shutdown
Date Wed, 21 Sep 2011 19:44:18 GMT
*We are running ActiveMQ in JDBC master slave mode. A few days back we
observed the following log entries in the master log files:*

The connection to '/<ip>:<port>' is taking a long time to shutdown. |
org.apache.activemq.broker.TransportConnection | ActiveMQ Task
.
.
.

ERROR | Could not accept connection : java.net.SocketException: Broken pipe
| org.apache.activemq.broker.TransportConnector | ActiveMQ Task


java.lang.OutOfMemoryError: unable to create new native thread
	at java.lang.Thread.start0(Native Method)
	at java.lang.Thread.start(Unknown Source)
	at
org.apache.activemq.thread.TaskRunnerFactory.execute(TaskRunnerFactory.java:92)
	at
org.apache.activemq.thread.TaskRunnerFactory.execute(TaskRunnerFactory.java:85)
	at
org.apache.activemq.broker.TransportConnection.stopAsync(TransportConnection.java:914)
	at
org.apache.activemq.broker.TransportConnection.serviceTransportException(TransportConnection.java:230)
	at
org.apache.activemq.broker.TransportConnection$1.onException(TransportConnection.java:190)
	at
org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:99)
	at
org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:99)
	at
org.apache.activemq.transport.WireFormatNegotiator.onException(WireFormatNegotiator.java:160)
	at
org.apache.activemq.transport.InactivityMonitor.onException(InactivityMonitor.java:254)
	at
org.apache.activemq.transport.InactivityMonitor$4.run(InactivityMonitor.java:174)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)


*some time after this exception was printed the master activemq went down
and slave became the master.

We then observed the following warnings/errors in the new masters log files.
These log entries started getting generated 10 minutes after the slave
became the master:
 
*
INFO  | The connection to '/<ip>:<port>' is taking a long time to shutdown.
| org.apache.activemq.broker.TransportConnection | ActiveMQ Task
ERROR | Could not accept connection : java.net.SocketException: Broken pipe
| org.apache.activemq.broker.TransportConnector | ActiveMQ Task
WARN  | cannot create async transport stopper thread.. not waiting for stop
to complete, reason: | org.apache.activemq.broker.TransportConnection |
ActiveMQ Transport: tcp:///<ip>:<port>

java.lang.OutOfMemoryError: GC overhead limit exceeded


*After a day or two after the slave became the master we observed the
following warnings in the current masters log files:*

WARN  | Failed to register MBean:
org.apache.activemq:BrokerName=slave,Type=Connection,ConnectorName=openwire,ViewType=address,Name=/<ip>_<port>
| org.apache.activemq.broker.jmx.ManagedTransportConnection | ActiveMQ Task
WARN  | Failed to unregister mbean:
org.apache.activemq:BrokerName=slave,Type=Connection,ConnectorName=openwire,ViewType=address,Name=/<ip>_<port>
| org.apache.activemq.broker.jmx.ManagedTransportConnection | ActiveMQ Task
WARN  | Failed to register MBean:
org.apache.activemq:BrokerName=slave,Type=Connection,ConnectorName=openwire,ViewType=address,Name=/<ip>_<port>
| org.apache.activemq.broker.jmx.ManagedTransportConnection | ActiveMQ Task
WARN  | Failed to register MBean:
org.apache.activemq:BrokerName=slave,Type=Connection,ConnectorName=openwire,ViewType=address,Name=/<ip>_<port>
| org.apache.activemq.broker.jmx.ManagedTransportConnection | ActiveMQ Task
WARN  | Failed to unregister mbean:
org.apache.activemq:BrokerName=slave,Type=Connection,ConnectorName=openwire,ViewType=address,Name=/<ip>_<port>
| org.apache.activemq.broker.jmx.ManagedTransportConnection | ActiveMQ Task



*What could be the reason for the occurrence of these warnings/errors?*

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