<div dir="ltr"><p style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">hi,</p><p style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

that happened to us too on a virtual Linux server and we solved it as described below:</p><p style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

<br></p><p style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px"><br></p><p style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

/etc/security/limits.conf</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">exampleUsername soft nofile 65536<br>exampleUsername hard nofile 65536<br>

exampleUsername - nproc 2103295<br>exampleUsername hard core unlimited<br>exampleUsername soft core unlimited</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

<br></p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px"><br></p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

I am not 100% sure of which one of those settings fixed it, we left it to our sys admins to sort out.</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

<br></p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">I was able to prove that the problem was with the Linux machine set up by writing a simple Java program that just created Threads doing nothing but Thread.sleep(). The machine previously only allowed the creation of 100 threads and after that it started failing with the error you reported.</p>

<p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px"><br></p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

Hope this helps.</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">thanks,</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px">

Michele</p><p style="margin:16px 0px 0px;padding:0px;color:rgb(0,0,0);font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:13px;line-height:17px"><br></p></div><div class="gmail_extra"><br><br><div class="gmail_quote">

On 2 May 2013 21:47, Brandon Jackson <span dir="ltr">&lt;<a href="mailto:usbrandon@gmail.com" target="_blank">usbrandon@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div dir="ltr">The last day or so after upgrading to 4.8.1-EE, I have encountered a really interesting problem.  After running an OLAP Input step in PDI which uses XMLA to communicate back to the server, the mondrian logs say the following before the whole system becomes toast.  The BI Server shuts down because of &#39;out of memory&#39;, but the OS (Centos 6.3 with Oracle Java 1.6.0_45) also becomes unstable mentioning that it has the inability to fork new processes.  The system must be shutdown via power button at that point (ACPI is still alive and the OS shuts down normally, but nothing new can happen in the OS).<br>


<br>2013-05-02 14:02:31,718 ERROR [mondrian.xmla.XmlaServlet] Errors when handling XML/A message<br>mondrian.xmla.XmlaException: Mondrian Error:XMLA Discover unparse results error<br>    at mondrian.xmla.XmlaHandler.discover(XmlaHandler.java:2867)<br>


    at mondrian.xmla.XmlaHandler.process(XmlaHandler.java:663)<br>    at mondrian.xmla.impl.DefaultXmlaServlet.handleSoapBody(DefaultXmlaServlet.java:505)<br>    at mondrian.xmla.XmlaServlet.doPost(XmlaServlet.java:317)<br>


    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)<br>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)<br>


    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>    at org.pentaho.platform.web.http.filters.PentahoWebContextFilter.doFilter(PentahoWebContextFilter.java:142)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br>


    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>    at org.pentaho.platform.web.http.filters.PentahoRequestContextFilter.doFilter(PentahoRequestContextFilter.java:84)<br>


    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)<br>


    at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)<br>    at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)<br>


    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.pentaho.platform.web.http.security.SecurityStartupFilter.doFilter(SecurityStartupFilter.java:103)<br>


    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.pentaho.platform.web.http.security.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:169)<br>


    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.pentaho.platform.web.http.security.HttpSessionReuseDetectionFilter.doFilter(HttpSessionReuseDetectionFilter.java:134)<br>


    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)<br>


    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)<br>    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)<br>    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)<br>


    at org.springframework.security.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:99)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>


    at com.pentaho.ui.servlet.SystemStatusFilter.doFilter(SourceFile:72)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>


    at org.pentaho.platform.web.http.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:113)<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br>


    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)<br>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)<br>


    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)<br>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)<br>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br>


    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)<br>    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)<br>


    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)<br>    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)<br>    at java.lang.Thread.run(Thread.java:662)<br>


Caused by: java.lang.OutOfMemoryError: unable to create new native thread<br>    at java.lang.Thread.start0(Native Method)<br>    at java.lang.Thread.start(Thread.java:640)<br>    at java.util.Timer.&lt;init&gt;(Timer.java:154)<br>


    at mondrian.util.UtilCompatibleJdk15.newTimer(UtilCompatibleJdk15.java:129)<br>    at mondrian.olap.Util.newTimer(Util.java:2196)<br>    at mondrian.server.DynamicContentFinder.&lt;init&gt;(DynamicContentFinder.java:60)<br>


    at org.pentaho.platform.web.servlet.PentahoXmlaServlet$1.&lt;init&gt;(PentahoXmlaServlet.java:86)<br>    at org.pentaho.platform.web.servlet.PentahoXmlaServlet.makeContentFinder(PentahoXmlaServlet.java:86)<br>    at org.pentaho.platform.web.servlet.PentahoXmlaServlet$3.getConnection(PentahoXmlaServlet.java:254)<br>


    at mondrian.xmla.XmlaHandler.getConnection(XmlaHandler.java:2939)<br>    at mondrian.xmla.XmlaHandler.getConnection(XmlaHandler.java:175)<br>    at mondrian.xmla.Rowset.populate(Rowset.java:218)<br>    at mondrian.xmla.Rowset.unparse(Rowset.java:193)<br>


    at mondrian.xmla.XmlaHandler.discover(XmlaHandler.java:2861)<br>    ... 65 more<br></div>
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<br></blockquote></div><br></div>