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POHanging ActiveMQ Transport and Connection threads
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  1. POHanging ActiveMQ Transport and Connection threads
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    copied!<p>I've got a Webservice deployed on Apache ServiceMix which uses Apache Camel to invoke an ActiveMQ driven route using code similar to the following:</p> <pre><code> context.createProducerTemplate().sendBody("activemq:startComplex", xml); </code></pre> <p>The invocation works fine but after some time the file descriptor limit on my Linux machine gets hit. The resources are eaten up by a whole bunch (a few thousand) of ActiveMQ threads. Under the jmx console I can see a lot of threads similar to the following:</p> <pre><code>Name: ActiveMQ Transport: tcp://localhost/127.0.0.1:61616 State: RUNNABLE Total blocked: 0 Total waited: 0 Stack trace: java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:129) org.apache.activemq.transport.tcp.TcpBufferedInputStream.fill(TcpBufferedInputStream.java:5 0) org.apache.activemq.transport.tcp.TcpTransport$2.fill(TcpTransport.java:589) org.apache.activemq.transport.tcp.TcpBufferedInputStream.read(TcpBufferedInputStream.java:5 8) org.apache.activemq.transport.tcp.TcpTransport$2.read(TcpTransport.java:574) java.io.DataInputStream.readInt(DataInputStream.java:370) org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:275) org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:222) org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:214) org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:197) java.lang.Thread.run(Thread.java:662) </code></pre> <p>and</p> <pre><code>Name: ActiveMQ Transport: tcp:///127.0.0.1:46420 State: RUNNABLE Total blocked: 0 Total waited: 2 Stack trace: java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:129) org.apache.activemq.transport.tcp.TcpBufferedInputStream.fill(TcpBufferedInputStream.java:50) org.apache.activemq.transport.tcp.TcpTransport$2.fill(TcpTransport.java:589) org.apache.activemq.transport.tcp.TcpBufferedInputStream.read(TcpBufferedInputStream.java:58) org.apache.activemq.transport.tcp.TcpTransport$2.read(TcpTransport.java:574) java.io.DataInputStream.readInt(DataInputStream.java:370) org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:275) org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:222) org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:214) org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:197) java.lang.Thread.run(Thread.java:662) </code></pre> <p>And ideas how to get rid of the hanging threads?</p>
 

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