I am seeing a hang when using the Web Services bindings to access a service
that has a callback reference. In this particular case the service expose
several methods on the interface. Only one of the methods invokes a method
on the callback reference. The method that invokes the callback functions
fine. The issue is with the other methods on the interface. It appears
that the binding is expecting every request to the service to perfrom a
callback. What I have found is the latch associated with doneSignal.await()
is never freed up. Also since this method did not use invoke a callback
not sure why it would be using an Async message receiver rather than the
Sync version? Its almost as if the binding is anticipating a mandatory
callback rather than waiting for one to actually be called. After about 5
minutes the request will timeout. Thanks for your help.
*public* Axis2ServiceInOutAsyncMessageReceiver() {
}
*public* *final* *void* receive(*final* MessageContext messageCtx) {
*try* {
Object messageId = messageCtx.getMessageID();
*if* (messageId == *null*) {
messageId = *new* MessageId();
}
// Now use message id as index to context to be used by callback
// target invoker
CountDownLatch doneSignal = *new* CountDownLatch(1);
InvocationContext invCtx =
service.*new* InvocationContext(messageCtx, operation,
getSOAPFactory(messageCtx), doneSignal);
service.addMapping(messageId, invCtx);
invokeBusinessLogic(messageCtx, messageId);
*try* {
doneSignal.await();
} *catch*(InterruptedException e) {
e.printStackTrace();
Timeout occurs after 5 minutes:
[4/12/07 21:49:43:529 EDT] 0000002b SystemErr R Exception in thread "Axis2
Task" *org.apache.tuscany.spi.wire.InvocationRuntimeException*:
org.apache.axis2.AxisFault: Async operation timed out; nested exception is:
*java.net.SocketTimeoutException*: Async operation timed out
[4/12/07 21:49:43:529 EDT] 0000002b SystemErr R at
org.apache.tuscany.binding.axis2.Axis2ReferenceCallback.onError(*
Axis2ReferenceCallback.java:54*)
[4/12/07 21:49:43:539 EDT] 0000002b SystemErr R at
org.apache.axis2.description.OutInAxisOperationClient$NonBlockingInvocationWorker.run
(*OutInAxisOperation.java:417*)
[4/12/07 21:49:43:539 EDT] 0000002b SystemErr R at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask
(*ThreadPoolExecutor.java:665*)
[4/12/07 21:49:43:539 EDT] 0000002b SystemErr R at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run
(*ThreadPoolExecutor.java:690*)
[4/12/07 21:49:43:539 EDT] 0000002b SystemErr R at java.lang.Thread.run(*
Thread.java:803*)
[4/12/07 21:49:43:539 EDT] 0000002b SystemErr R Caused by:
org.apache.axis2.AxisFault: Async operation timed out; nested exception is:
*java.net.SocketTimeoutException*: Async operation timed out
at com.ibm.ws.websvcs.transport.http.HTTPTransportSender.invoke(*
HTTPTransportSender.java:271*)
at org.apache.axis2.engine.AxisEngine.send(*AxisEngine.java:464*)
at org.apache.axis2.description.OutInAxisOperationClient.send(*
OutInAxisOperation.java:325*)
at
org.apache.axis2.description.OutInAxisOperationClient$NonBlockingInvocationWorker.run
(*OutInAxisOperation.java:400*)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask
(*ThreadPoolExecutor.java:665*)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run
(*ThreadPoolExecutor.java:690*)
at java.lang.Thread.run(*Thread.java:803*)
Caused by: *java.net.SocketTimeoutException*: Async operation timed out
}
} *catch* (AxisFault e) {
// log.error(e);
}
}
