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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have configured the load tester and it seems to run fine if the number of unique clients per process is less than 100, but when I increase the clients to larger number it is giving me connection refused exception, while running for grinder.threads=3000 I get 1375 as success and 1625 failures. The exception is as follows. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>/4/13 5:16:36 PM (thread 814 run 0 test 2): Aborted run due to Java exception calling TestRunner<o:p></o:p></p><p class=MsoNormal>Java exception calling TestRunner<o:p></o:p></p><p class=MsoNormal> File "/root/idploadtest/trunk/grinder-framework/tests/saml2sso_idp/test.py", line 54, in executeSSOTest<o:p></o:p></p><p class=MsoNormal> File "/root/idploadtest/trunk/grinder-framework/tests/saml2sso_idp/test.py", line 107, in __call__<o:p></o:p></p><p class=MsoNormal>Caused by: java.net.ConnectException: Connection refused<o:p></o:p></p><p class=MsoNormal> at java.net.PlainSocketImpl.socketConnect(Native Method)<o:p></o:p></p><p class=MsoNormal> at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)<o:p></o:p></p><p class=MsoNormal> at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)<o:p></o:p></p><p class=MsoNormal> at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)<o:p></o:p></p><p class=MsoNormal> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)<o:p></o:p></p><p class=MsoNormal> at java.net.Socket.connect(Socket.java:546)<o:p></o:p></p><p class=MsoNormal> at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:584)<o:p></o:p></p><p class=MsoNormal> at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:426)<o:p></o:p></p><p class=MsoNormal> at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:142)<o:p></o:p></p><p class=MsoNormal> at com.gargoylesoftware.htmlunit.ssl.InsecureSSLProtocolSocketFactory.createSocket(InsecureSSLProtocolSocketFactory.java:82)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)<o:p></o:p></p><p class=MsoNormal> at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)<o:p></o:p></p><p class=MsoNormal> at com.gargoylesoftware.htmlunit.HttpWebConnection.getResponse(HttpWebConnection.java:97)<o:p></o:p></p><p class=MsoNormal> at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseFromWebConnection(WebClient.java:1430)<o:p></o:p></p><p class=MsoNormal> at com.gargoylesoftware.htmlunit.WebClient.loadWebResponse(WebClient.java:1388)<o:p></o:p></p><p class=MsoNormal> at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<o:p></o:p></p><p class=MsoNormal> at java.lang.reflect.Method.invoke(Method.java:616)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyReflectedFunction.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyMethod.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyObject.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyInstance.invoke(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.pycode._pyx0.executeSSOTest$1(/root/idploadtest/trunk/grinder-framework/tests/saml2sso_idp/test.py:54)<o:p></o:p></p><p class=MsoNormal> at org.python.pycode._pyx0.call_function(/root/idploadtest/trunk/grinder-framework/tests/saml2sso_idp/test.py)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyTableCode.call(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyTableCode.call(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyFunction.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at sun.reflect.GeneratedMethodAccessor100.invoke(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<o:p></o:p></p><p class=MsoNormal> at java.lang.reflect.Method.invoke(Method.java:616)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyReflectedFunction.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyMethod.__call__(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at org.python.core.PyObject.invoke(Unknown Source)<o:p></o:p></p><p class=MsoNormal> at net.grinder.engine.process.jython.InstrumentedPyJavaInstanceForPyFunctions.access$401(InstrumentedPyJavaInstanceForPyFunctions.java:38)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Can anyone guide me where to look for, so that larger number of clients can be handled by the idp ? I am configuring this as last time our company shifted to saml, the server became non-responsive because of 8K unique users tried to connect to application simulataneously. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have already done following steps at IDP for fine tuning <o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]> Set JAVA_OPTS=-server -Xms2048m -Xmx3072m -XX:MaxPermSize=128m -XX:+DisableExplicitGC -XX:+UseParallelOldGC -verbose:gc<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Changed the default in httpd-mpm.confid to follows <o:p></o:p></p><p class=MsoNormal> <IfModule mpm_prefork_module><o:p></o:p></p><p class=MsoNormal> StartServers 10<o:p></o:p></p><p class=MsoNormal> MinSpareServers 5<o:p></o:p></p><p class=MsoNormal> MaxSpareServers 20<o:p></o:p></p><p class=MsoNormal> MaxClients 500<o:p></o:p></p><p class=MsoNormal> MaxRequestsPerChild 5000<o:p></o:p></p><p class=MsoNormal></IfModule><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards<o:p></o:p></p></div></body></html>