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https://issues.apache.org/jira/browse/AXIS2-5768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282525#comment-15282525
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Rajesh commented on AXIS2-5768:
-------------------------------
Step 1 : Run the axis2 client program (axis2 1.7.2) in the app server.
Step 2: Create a new SOAP UI project with the wsdl url
Step 3: Create load test case with following parameters
Threads - 100
Test Delay - 1000 ms
Limit - 10 seconds
Step 4: Run the Load Test [This will fire the 100 requests with in 10 seconds]
Step 5: Open the terminal and execute the command
netstat -a | grep <username>
Step 5: This will list down the http connections created. (The screenshot of
this output was already attached)
> Axis2 (1.4.1) Client Connection Issue
> -------------------------------------
>
> Key: AXIS2-5768
> URL: https://issues.apache.org/jira/browse/AXIS2-5768
> Project: Axis2
> Issue Type: Bug
> Components: transports
> Reporter: Rajesh
> Attachments: ConnectionIssue.jpg
>
>
> I have a java(axis2 1.4.1 client) component in middleware which consumes a
> web service hosted in another application. Am facing some issues in it.
> Please find the code snippet below
> ================================
> ConfigurationContext configContxt;
> MultiThreadedHttpConnectionManager connxMgr = new
> MultiThreadedHttpConnectionManager();
> HttpConnectionManagerParams params = connxMgr.getParams();
> params.setDefaultMaxConnectionsPerHost(50);
> params.setMaxTotalConnections(50);
> connxMgr .setParams(params);
> HttpClient client = new HttpClient(connxMgr);
> configContxt.setProperty(HTTPConstants.REUSE_HTTP_CLIENT, "True");
> ================================
> Please help to clarify the below queries,
> 1. Whenever a new request comes in, a new connection is getting created. This
> can be confirmed by doing 'netstat -a|grep <<provider URI>>'
> When we were using axis2 1.3v client earlier there was no new connection
> created, please clarify why this is creating a new connection while using
> axis2 1.4.1?
> To prevent this, I have set REUSE_HTTP_CLIENT property in
> ConfigurationContext to TRUE. So this will reuse the existing (already
> established) connection to the server.
> 2. I have set the setDefaultMaxConnectionsPerHost and setMaxTotalConnections
> as 50. When I do the load test from SoapUI by triggering 50 requests, only 3
> connections were created. Later I increased to 200 requests, but still the
> connections count didnt exceed 3.
> Am not sure why it is not able to serve with only one connection (since reuse
> property is used) and also why the number of connections did not gradually
> increase with the number of requests (3 connx for 50 requests and again same
> 3 connx for 200 requests)
> How will the reuse propery (HTTPConstants.REUSE_HTTP_CLIENT) behave ?
> 3. How many transactions can be done per connection concurrently while using
> " REUSE_HTTP_CLIENT property" in the code?
> 4. Another Issue is:
> I have set the closeIdleConnections with the timeout of 30 secs.
> httpClient.getHttpConnectionManager().closeIdleConnections(30000);
> Even this is not working. The unused connections are closed only after 5
> mins.
> I just want to know If there could be some property set at server side which
> overriding this 30 seconds which am setting at client side ?
> -------------------------------------------------------------------------------------
> As per your previous reply axis 1.4.1 is not supported anymore. So we
> upgraded to axis 1.7.1.
> With reference to the below link, it says that reusing Http client is handled
> internally and need not be explicitly handled in the user program.
> https://axis.apache.org/axis2/java/core/docs/http-transport.html
> [" in earlier versions of Axis2 the REUSE_HTTP_CLIENT configuration property
> was necessary to enable this functionality, but as of 1.5 this is no longer
> necessary"]
> But when we triggered 100 requests, we found that 100 connections were
> created and as mentioned in the document, the connections were not reused.
> ----------------------------------------------------------------------------------------------------
> RE-OPENING THE TICKET FOR Ver 1.7.2
> ----------------------------------------------------------------------------------------------------
> As per your previous reply axis 1.4.1 is not supported anymore. So we
> upgraded to axis 1.7.1.
> With reference to the below link, it says that reusing Http client is handled
> internally and need not be explicitly handled in the user program.
> https://axis.apache.org/axis2/java/core/docs/http-transport.html
> [" in earlier versions of Axis2 the REUSE_HTTP_CLIENT configuration property
> was necessary to enable this functionality, but as of 1.5 this is no longer
> necessary"]
> But when we triggered 100 requests, we found that 100 connections were
> created and as mentioned in the document, the connections were not reused.
> Attached the screenshot for your reference
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