On Wed, 2007-03-21 at 11:06 +0000, ant elder wrote:
> I've been trying to use JMeter to test Synapse but getting
> intermittent failures, see below for the stack trace output. Happens
> all the time, maybe a few hundred requests are successful but then it
> gets the failure and hangs. I'm not sure whats the easiest way to
> debug this is, any ideas? 
> 
>    ...ant
> 

Anthony,

The transport appears to be hanging because an unchecked exception
caused the I/O dispatch thread to terminate. I believe there are several
different types of problems (at least two) that we are seeing here. 

[I/O reactor worker thread 5] ERROR ServerHandler - I/O Error : null 
> java.nio.channels.ClosedChannelException
>         at
> sun.nio.ch.SocketChannelImpl.ensureReadOpen(SocketChannelImpl.java:112)
>         at
> sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:139)

This one is definitely a bug in HttpCore. Could you please raise a Jira
issue in HttpComponents Core and I'll get this problem fixed tonight or
tomorrow?

Oleg 


> [I/O reactor worker thread 5] ERROR ServerHandler - Error processing
> request received for : /axis2/services/SimpleStockQuoteService
> java.io.IOException: Unable to establish loopback connection
>         at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:106)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:122)
>         at sun.nio.ch.SelectorProviderImpl.openPipe
> (SelectorProviderImpl.java:27)
>         at java.nio.channels.Pipe.open(Pipe.java:133)
>         at
> org.apache.axis2.transport.nhttp.ServerHandler.requestReceived(ServerHandler.java:108)
>         at
> org.apache.axis2.transport.nhttp.LoggingNHttpServiceHandler.requestReceived 
> (LoggingNHttpServiceHandler.java:79)
>         at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput(DefaultNHttpServerConnection.java:96)
>         at
> org.apache.axis2.transport.nhttp.PlainServerIOEventDispatch.inputReady
> (PlainServerIOEventDispatch.java:67)
>         at
> org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:68)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java
>  :160)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:145)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:127)
>         at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor
> $Worker.run(AbstractMultiworkerIOReactor.java:153)
>         at java.lang.Thread.run(Thread.java:595)
> Caused by: java.net.BindException: Address already in use: connect 
>         at sun.nio.ch.Net.connect(Native Method)
>         at
> sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:464)
>         at
> java.nio.channels.SocketChannel.open(SocketChannel.java:146)
>         at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:78)
>         ... 14 more
> [I/O reactor worker thread 5] ERROR ServerHandler - I/O Error : null
> java.nio.channels.ClosedChannelException
>         at sun.nio.ch.SocketChannelImpl.ensureReadOpen
> (SocketChannelImpl.java:112)
>         at
> sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:139)
>         at org.apache.axis2.transport.nhttp.LoggingIOSession
> $LoggingByteChannel.read(LoggingIOSession.java:153)
>         at
> org.apache.http.impl.nio.reactor.SessionInputBuffer.fill(SessionInputBuffer.java:75)
>         at
> org.apache.http.impl.nio.codecs.ChunkDecoder.read(ChunkDecoder.java:157)
>         at org.apache.axis2.transport.nhttp.ServerHandler.inputReady
> (ServerHandler.java:150)
>         at
> org.apache.axis2.transport.nhttp.LoggingNHttpServiceHandler.inputReady(LoggingNHttpServiceHandler.java:103)
>         at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput
> (DefaultNHttpServerConnection.java:108)
>         at
> org.apache.axis2.transport.nhttp.PlainServerIOEventDispatch.inputReady(PlainServerIOEventDispatch.java:67)
>         at org.apache.http.impl.nio.reactor.BaseIOReactor.readable
> (BaseIOReactor.java:68)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:160)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java
>  :145)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:127)
>         at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor
> $Worker.run(AbstractMultiworkerIOReactor.java :153)
>         at java.lang.Thread.run(Thread.java:595)
> [I/O reactor worker thread 5] WARN  ServerHandler - Connection Timeout
> for request to : /axis2/services/SimpleStockQuoteService
> [I/O reactor worker thread 5] ERROR ServerHandler - Error processing
> request received for : /axis2/services/SimpleStockQuoteService 
> java.io.IOException: Unable to establish loopback connection
>         at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:106)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:122)
>         at
> sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:27)
>         at java.nio.channels.Pipe.open(Pipe.java:133)
>         at
> org.apache.axis2.transport.nhttp.ServerHandler.requestReceived
> (ServerHandler.java:108)
>         at
> org.apache.axis2.transport.nhttp.LoggingNHttpServiceHandler.requestReceived(LoggingNHttpServiceHandler.java:79)
>         at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput
> (DefaultNHttpServerConnection.java:96)
>         at
> org.apache.axis2.transport.nhttp.PlainServerIOEventDispatch.inputReady(PlainServerIOEventDispatch.java:67)
>         at org.apache.http.impl.nio.reactor.BaseIOReactor.readable
> (BaseIOReactor.java:68)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:160)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java
>  :145)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:127)
>         at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor
> $Worker.run(AbstractMultiworkerIOReactor.java :153)
>         at java.lang.Thread.run(Thread.java:595)
> Caused by: java.net.BindException: Address already in use: connect
>         at sun.nio.ch.Net.connect(Native Method)
>         at sun.nio.ch.SocketChannelImpl.connect
> (SocketChannelImpl.java:464)
>         at
> java.nio.channels.SocketChannel.open(SocketChannel.java:146)
>         at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:78)
>         ... 14 more
> [I/O reactor worker thread 5] ERROR ServerHandler - I/O Error : null 
> java.nio.channels.ClosedChannelException
>         at
> sun.nio.ch.SocketChannelImpl.ensureReadOpen(SocketChannelImpl.java:112)
>         at
> sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:139)
>         at org.apache.axis2.transport.nhttp.LoggingIOSession
> $LoggingByteChannel.read(LoggingIOSession.java:153)
>         at
> org.apache.http.impl.nio.reactor.SessionInputBuffer.fill(SessionInputBuffer.java:75)
>         at org.apache.http.impl.nio.codecs.ChunkDecoder.read
> (ChunkDecoder.java:157)
>         at
> org.apache.axis2.transport.nhttp.ServerHandler.inputReady(ServerHandler.java:150)
>         at
> org.apache.axis2.transport.nhttp.LoggingNHttpServiceHandler.inputReady(LoggingNHttpServiceHandler.java
>  :103)
>         at
> org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput(DefaultNHttpServerConnection.java:108)
>         at
> org.apache.axis2.transport.nhttp.PlainServerIOEventDispatch.inputReady(PlainServerIOEventDispatch.java
>  :67)
>         at
> org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:68)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:160)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents
> (AbstractIOReactor.java:145)
>         at
> org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:127)
>         at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor
> $Worker.run(AbstractMultiworkerIOReactor.java :153)
>         at java.lang.Thread.run(Thread.java:595)
> [I/O reactor worker thread 7] WARN  ServerHandler - Connection Timeout
> for request to : /axis2/services/SimpleStockQuoteService
> [I/O reactor worker thread 5] WARN  ServerHandler - Connection Timeout
> for request to : /axis2/services/SimpleStockQuoteService 
> Terminate batch job (Y/N)? y


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