[Spacewalk-list] Apache2::SizeLimit too big

Brian Kosick bkosick at mxlogic.com
Tue Jan 20 01:16:07 UTC 2009 

On Mon, 2009-01-19 at 17:54 -0700, Jesus M. Rodriguez wrote:
> On Mon, Jan 19, 2009 at 6:40 PM, Brian Kosick <bkosick at mxlogic.com> wrote:
> > Hi All,
> >
> > I've been trying to troubleshoot the 64bit memleak reported here:
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=465796
> >
> > So far I've created rpms and updated httpd = 2.2.11, mod_perl 2.0.4 and
> > updated the sys perl version to perl-5.8.8-15.el5_2.1.  Still same
> > issue.   Can someone help elucidate the mod_perl/tomcat/spacewalk
> > interactions.   From looking at the configs it almost looks like
> > mod_perl is used for DB connections using RHN::DB, and for monitoring
> > the apache treadsize.   With Tomcat/JSP handling most everything else.
> > Am I correct?   How far have others gotten with this?
> 
> mod_perl handles monitoring and any url that ends with .pxt.  It is correct that
> it connects to the DB via RHN::DB.  The xmlrpc api, *.do urls, and
> *.jsp urls are all
> being handled by tomcat.
> mod_python handles the client interactions.
> 
> https://hosted.fedoraproject.org/spacewalk/wiki/Architecture
> 
> It is indeed a weird bug. One would think it is a memory leak because
> the SizeLimit
> continues to grow and doesn't seem to level off, but on 32-bit
> versions it has never
> been an issue.
> 
> jesus
> 
> _______________________________________________
> Spacewalk-list mailing list
> Spacewalk-list at redhat.com
> https://www.redhat.com/mailman/listinfo/spacewalk-list

Thanks for the info...   I am trying to delete packages to reproduce
this error..   When I hit the apache threadsize issue I also get this in
the catalina.out log.

2009-01-19 17:56:29,836 [TP-Processor7] WARN
org.apache.struts.action.RequestProcessor - Unhandled Exception thrown:
class java.lang.NullPointerException
2009-01-19 17:56:29,836 [TP-Processor7] ERROR
com.redhat.rhn.frontend.servlets.SessionFilter - Error during
transaction. Rolling back
javax.servlet.ServletException
        at
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:237)
        at
com.redhat.rhn.frontend.struts.RhnRequestProcessor.process(RhnRequestProcessor.java:82)
        at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.redhat.rhn.frontend.servlets.AuthFilter.doFilter(AuthFilter.java:73)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:142)
        at
com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:58)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:67)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.redhat.rhn.frontend.servlets.EnvironmentFilter.doFilter(EnvironmentFilter.java:108)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.redhat.rhn.frontend.servlets.SessionFilter.doFilter(SessionFilter.java:55)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
com.redhat.rhn.frontend.servlets.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:97)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
        at
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)

        at
org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
        at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
        at org.apache.jk.common.ChannelSocket
$SocketConnection.runIt(ChannelSocket.java:895)
        at org.apache.tomcat.util.threads.ThreadPool
$ControlRunnable.run(ThreadPool.java:685)
        at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.NullPointerException
        at
com.redhat.rhn.domain.rhnpackage.PackageCapability.equals(PackageCapability.java:95)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
        at com.redhat.rhn.domain.rhnpackage.PackageCapability
$$EnhancerByCGLIB$$b8dc3f3f.equals(<generated>)
        at
org.apache.commons.lang.builder.EqualsBuilder.append(EqualsBuilder.java:296)
        at
com.redhat.rhn.domain.rhnpackage.PackageFile.equals(PackageFile.java:306)
        at java.util.HashMap.put(HashMap.java:393)
        at java.util.HashSet.add(HashSet.java:217)
        at
java.util.AbstractCollection.addAll(AbstractCollection.java:322)
        at
org.hibernate.collection.PersistentSet.endRead(PersistentSet.java:329)
        at
org.hibernate.engine.loading.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:237)
        at
org.hibernate.engine.loading.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:222)
        at
org.hibernate.engine.loading.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:195)
        at
org.hibernate.loader.Loader.endCollectionLoad(Loader.java:877)
        at
org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:865)
        at org.hibernate.loader.Loader.doQuery(Loader.java:729)
        at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.loadCollection(Loader.java:1994)
        at
org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
        at
org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
        at
org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
        at
org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
        at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
        at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
        at
org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:163)
        at
org.hibernate.type.CollectionType.getElementsIterator(CollectionType.java:211)
<snip>
2009-01-19 17:56:29,843 [TP-Processor7] ERROR
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/rhn].[action] - Servlet.service() for servlet ac
tion threw exception
java.lang.NullPointerException

<snip>
I have not deduced whether this is caused by the Apache Thread being
killed because it's too big, or the other way around.  A Co-Worker seems
to think that a log handler is not setup correctly....

Brian

More information about the Spacewalk-list mailing list