...
Here are a list of commonly asked questions and answers. Click on the the bolded questions for the answer to unfold. If you have any questions which are not on this list, please email our qpid-user list.
Contents
//
...
| No Format |
|---|
2009-01-12 15:26:27,957 ERROR [pool-11-thread-2] protocol.AMQMinaProtocolSession (AMQMinaProtocolSession.java:365) - Unexpected exception while processing frame. Closing connection.
java.lang.NullPointerException
at org.apache.qpid.server.security.access.PrincipalPermissions.authorise(PrincipalPermissions.java:398)
at org.apache.qpid.server.security.access.plugins.SimpleXML.authorise(SimpleXML.java:302)
at org.apache.qpid.server.handler.QueueBindHandler.methodReceived(QueueBindHandler.java:111)
at org.apache.qpid.server.handler.ServerMethodDispatcherImpl.dispatchQueueBind(ServerMethodDispatcherImpl.java:498)
at org.apache.qpid.framing.amqp_8_0.QueueBindBodyImpl.execute(QueueBindBodyImpl.java:167)
at org.apache.qpid.server.state.AMQStateManager.methodReceived(AMQStateManager.java:204)
at org.apache.qpid.server.protocol.AMQMinaProtocolSession.methodFrameReceived(AMQMinaProtocolSession.java:295)
at org.apache.qpid.framing.AMQMethodBodyImpl.handle(AMQMethodBodyImpl.java:93)
at org.apache.qpid.server.protocol.AMQMinaProtocolSession.frameReceived(AMQMinaProtocolSession.java:235)
at org.apache.qpid.server.protocol.AMQMinaProtocolSession.dataBlockReceived(AMQMinaProtocolSession.java:191)
at org.apache.qpid.server.protocol.AMQPFastProtocolHandler.messageReceived(AMQPFastProtocolHandler.java:244)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:703)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:362)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:54)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:800)
at org.apache.qpid.pool.PoolingFilter.messageReceived(PoolingFilter.java:371)
at com.jpmorgan.qpid.org.apache.mina.filter.ReferenceCountingIoFilter.messageReceived(ReferenceCountingIoFilter.java:96)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:362)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:54)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:800)
at com.jpmorgan.qpid.org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput.flush(SimpleProtocolDecoderOutput.java:60)
at com.jpmorgan.qpid.org.apache.mina.filter.codec.QpidProtocolCodecFilter.messageReceived(QpidProtocolCodecFilter.java:174)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:362)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:54)
at com.jpmorgan.qpid.org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:800)
at org.apache.qpid.pool.Event$ReceivedEvent.process(Event.java:86)
at org.apache.qpid.pool.Job.processAll(Job.java:110)
at org.apache.qpid.pool.Job.run(Job.java:149)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
|
| Wiki Markup |
|---|
{toggle-cloak:id=anonIOService} |
Why is there a lot of AnonymousIoService threads| Wiki Markup |
|---|
{cloak:id=anonIOService} |
These threads are part of the thread pool used by Mina to process the socket. In the future we may provide tuning guidelines but at this point we have seen no performance implications from the current configuration. As the threads are part of a pool they should remain inactive until required.