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RE: Possible running out of File Handles when using a facelets

by TRIFILETTI, Mel-2 :: Rate this Message:

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Possible running out of File Handles when using a facelets
For the record, we did track this down as a facelets file handle leak bug.
 
https://facelets.dev.java.net/issues/show_bug.cgi?id=254
 
We upgraded from facelets 1.1.14 draft to 1.1.15 draft to fix the problem.
 
From: TRIFILETTI, Mel [mailto:Mel.TRIFILETTI@...]
Sent: Friday, 13 March 2009 2:41 PM
To: users@...
Subject: Possible running out of File Handles when using a facelets

Our application has been running fine. Occasionally abourt once a week we get the error showing below appearing in our logs. It may happen for a minute and then the server fixes it self. Users get a 404 unavailable.

It looks like the server is out of file handlers as it also affects css requests, servlets etc. However the first occurrence always seems to be a facelet file so hence my suspicion. The following <e:resource> tag is included in a dataTable which can return up to 200 rows. Could there be a problem here if the server is under high load? Does it try to load the <e:resouces> facelet 200 times per user?


[13/03/09 10:38:12:466 WST] 000004c1 viewhandler   E   Error Rendering View[/maint/dealing/process/surrender/partial/voluntary/processVoluntaryPartialSurrender.xhtml]

                                 com.sun.facelets.tag.TagException: /WEB-INF/pages/maint/layouts/includes.xhtml @31,56 <e:resource> Facelet Not Found: file:/D:/Applications/IBM/WebSphere/profiles/ProdNode8A/installedApps/TestCell01/eMITS.ear/eMITSEnquiry.war/WEB-INF/pages/maint/component/resource.xhtml

        at com.sun.facelets.tag.UserTagHandler.apply(UserTagHandler.java(Compiled Code))
        at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java(Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java(Compiled Code))
        at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java(Compiled Code))
        at com.sun.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java(Inlined Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java(Inlined Compiled Code))

        at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.InsertHandler.apply(InsertHandler.java(Compiled Code))
        at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java(Inlined Compiled Code))
        at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java(Compiled Code))
        at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java(Compiled Code))
        at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java(Compiled Code))
        at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java(Compiled Code))
        at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java(Compiled Code))
        at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java(Compiled Code))
        at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java(Compiled Code))
        at emits.presentation.jsf.viewhandler.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java(Compiled Code))
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java(Compiled Code))
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java(Compiled Code))
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java(Compiled Code))
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java(Compiled Code))
        at com.ibm.ws.cache.servlet.ServletWrapper.serviceProxied(ServletWrapper.java(Inlined Compiled Code))
        at com.ibm.ws.cache.servlet.CacheHook.handleFragment(CacheHook.java(Compiled Code))
        at com.ibm.ws.cache.servlet.CacheHook.handleServlet(CacheHook.java(Compiled Code))
        at com.ibm.ws.cache.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
        at au.gov.wa.doir.framework.presentation.filters.TimerFilter.doFilter(TimerFilter.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
        at emits.presentation.stream.ProcessStreamFilter.doFilter(ProcessStreamFilter.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
        at au.gov.wa.doir.framework.presentation.filters.NoCacheFilter.doFilter(NoCacheFilter.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
        at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java(Compiled Code))
        at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java(Compiled Code))
        at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java(Compiled Code))
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java(Compiled Code))

        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java(Compiled Code))

        at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java(Compiled Code))
        at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java(Compiled Code))

        at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java(Compiled Code))
        at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java(Compiled Code))
        at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java(Compiled Code))
        at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java(Compiled Code))
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))

Thanks
Mel

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