[Dropped hc list] Hi Jeewantha,
What's your Synapse configuration? What steps did you have to go through to get this error? Please specify the exact details, so we can try to reproduce the problem. Also as Oleg has mentioned, a wire-level log would be very helpful. Enable DEBUG for the org.apache.synapse.transports package in the log4j.properties to enable this. Thanks, Hiranya On Aug 19, 2013, at 1:48 AM, Jeewantha Dharmaparakrama <[email protected]> wrote: > Hi All, > > I have an intermittent issue with Synapse where it prints the following > exception in its Error logs. > [2013-08-15 16:57:28,710] ERROR - SourceHandler Unexpected I/O error: > java.nio.channels.ClosedChannelException > > java.nio.channels.ClosedChannelException > > at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:135) > at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:326) > at > org.apache.http.impl.nio.reactor.SessionOutputBufferImpl.flush(SessionOutputBufferImpl.java:167) > at > org.apache.http.impl.nio.DefaultNHttpServerConnection.produceOutput(DefaultNHttpServerConnection.java:323) > at > org.apache.synapse.transport.http.conn.LoggingNHttpServerConnection.produceOutput(LoggingNHttpServerConnection.java:112) > at > org.apache.synapse.transport.passthru.ServerIODispatch.onOutputReady(ServerIODispatch.java:87) > at > org.apache.synapse.transport.passthru.ServerIODispatch.onOutputReady(ServerIODispatch.java:39) > at > org.apache.http.impl.nio.reactor.AbstractIODispatch.outputReady(AbstractIODispatch.java:143) > at > org.apache.http.impl.nio.reactor.BaseIOReactor.writable(BaseIOReactor.java:180) > at > org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342) > at > org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:316) > at > org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:277) > at > org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:105) > at > org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:584) > at java.lang.Thread.run(Thread.java:662) > > > What happens is for some reason, the corresponding SocketChannel is closed > but still some IO operation is done on it. Once this exception is caught from > httpcore-nio, it will be passed to > org.apache.http.nio.NHttpServerEventHandler implementation ( > org.apache.synapse.transport.passthru.SourceHandler ) and will be printed on > Synapse Error logs. Since this is an intermittent issue, > I tried to reproduce this programmatically but failed [1]. What can be the > practical reason for this Error? Can this be deliberately reproduced with > Synapse? > > [1] http://stackoverflow.com/q/18309283/1411653 > > Thanks in advance, > Jeewantha. -- Hiranya Jayathilaka Mayhem Lab/RACE Lab; Dept. of Computer Science, UCSB; http://cs.ucsb.edu E-mail: [email protected]; Mobile: +1 (805) 895-7443 Blog: http://techfeast-hiranya.blogspot.com
