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https://issues.apache.org/jira/browse/AXIS2-6009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17404509#comment-17404509
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Eoghan O'Hare commented on AXIS2-6009:
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Hi Robert,
I did get the HttpClient4 working with our application on axis2 1.7.9 last
week. The callback issue above was an problem in our code - my bad - it was
specifically code that I had been changing to try to get the httpclient4
working.
With httpclient4 v4.5.13 I did not have the same 5 second blocking issue with
load tests of 20 requests per second. I ran 3 load tests 20 requests per
second, 1000 total requests - no issues.
That is good news, to some extent.
However one of our production clients uses the http commons httpclient3, so I
am not sure we will be able to change that in the short term. I understand that
this library is end of life and there is nothing that can be done.
I do have another issue open against httpclient4 related to load test;
https://issues.apache.org/jira/browse/HTTPCLIENT-2172
Not sure if you only handle axis2 issues or if you could take a look at this
one also?
Thanks for you help,
Eoghan
> 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 O'Hare
> Priority: Major
> Attachments: ExceptionStackTrace.txt, axis2.xml, axis2client.7z,
> axis2client_httpclient4.log
>
>
> 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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