Eoghan created AXIS2-6009:
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Summary: ServiceClient::createClient intermittently under load
blocks for 5 seconds
Key: AXIS2-6009
URL: https://issues.apache.org/jira/browse/AXIS2-6009
Project: Axis2
Issue Type: Bug
Affects Versions: 1.7.9
Reporter: Eoghan
Attachments: ExceptionStackTrace.txt, axis2client.7z
Using the axis2-kernel-1.7.9.jar.
Our application is using automatically generated WS stubs for asynchronous SOAP
web services over https.
ServiceClient::createClient is called for every asynchronous web service
request.
Callbacks are registered using OperationClient::setCallback().
The non blocking web service request is sent by the API
OperationClient::execute(false).
The option isUseSeparateListener is set to false.
The default number of http connections are created, this is two from looking at
pcap traces.
Under low load rates, 20 requests per second, 1000 total requests,
intermittently the call to ServiceClient::createClient blocks the calling
thread for 5 seconds. Seems to be just over 5 seconds every time it occurs
(between 5000ms and 5030ms), so it sounds like some timeout.
The blocking seems to occur when a response to a previous web service is
received at a similar time.
After the 5 second blocking, an Exception is thrown from axis2 to our
applications error callback. Exception stack trace is attached.
I have tried to enable axis2 logging on the client side however there was
nothing obvious in it from my point of view. Attaching the log. In the log the
5 second delay is between;
06:47:50:574
06:47:55:579
If you require additional logging to be enabled to debug please let me know.
Or if you need any further information, please let me know.
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