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From Matthew Tyson <matthewcarlty...@gmail.com>
Subject Errors with NIO processor
Date Tue, 15 Nov 2011 17:00:38 GMT
Hey Guys,

We are seeing the following errors (in production of course, testing didn't
reveal this) after switching to NIO protocol.

This is Tomcat 7.0.22 on CentOS 6.  There is a load balancer sending only
comet traffic to port 8080, where the NIO protocol is used.

Nov 15, 2011 8:39:29 AM org.apache.tomcat.util.net.NioEndpoint processSocket
SEVERE: Error allocating socket processor
java.lang.NullPointerException
Nov 15, 2011 8:39:51 AM org.apache.tomcat.util.net.NioEndpoint processSocket
SEVERE: Error allocating socket processor
java.lang.NullPointerException
        at
org.apache.tomcat.util.net.NioEndpoint.processSocket(NioEndpoint.java:712)
        at
org.apache.tomcat.util.net.NioEndpoint$Poller.processKey(NioEndpoint.java:1200)
        at
org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:1136)
        at java.lang.Thread.run(Thread.java:662)
Nov 15, 2011 8:39:52 AM
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler process
SEVERE: null
java.lang.IllegalStateException: Calling [asyncPostProcess()] is not valid
for a request with Async state [STARTED]
        at
org.apache.coyote.AsyncStateMachine.asyncPostProcess(AsyncStateMachine.java:202)
        at
org.apache.coyote.AbstractProcessor.asyncPostProcess(AbstractProcessor.java:104)
        at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:519)
        at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1550)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
Exception in declaration()

I see more of the "Calling [asyncPostProcess()] is not valid for a request
with Async state [STARTED]" error by itself also.  Here is the connector
setup:

<Connector port="8080" protocol="org.apache.coyote.http11.Http11NioProtocol"
               connectionTimeout="20000"
               redirectPort="8443" />

Any direction on where to look for the cause?

Thanks,

Matt

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