Oh, the tomcat folks have a good write on this topic: http://wiki.apache.org/tomcat/MemoryLeakProtection
On Thu, Oct 28, 2010 at 10:33 AM, Matthias Wessendorf <mat...@apache.org> wrote: > In Tomcat I also see this, using 2.0.2: > > points to "StartupFacesContextImpl" and to "RuntimeConfig" as well > > .10.2010 15:37:54 org.apache.catalina.loader.WebappClassLoader > clearThreadLocalMap > SCHWERWIEGEND: The web application [/webprofile] created a ThreadLocal > with key of type [java.lang.ThreadLocal] (value > [java.lang.threadlo...@203822fc]) and a value of type > [org.apache.myfaces.context.servlet.StartupFacesContextImpl] (value > [org.apache.myfaces.context.servlet.startupfacescontexti...@4580deea]) > but failed to remove it when the web application was stopped. This is > very likely to create a memory leak. > 27.10.2010 15:37:54 org.apache.catalina.loader.WebappClassLoader > clearThreadLocalMap > SCHWERWIEGEND: The web application [/webprofile] created a ThreadLocal > with key of type [java.lang.ThreadLocal] (value > [java.lang.threadlo...@faaf84c]) and a value of type > [org.apache.myfaces.context.servlet.StartupFacesContextImpl] (value > [org.apache.myfaces.context.servlet.startupfacescontexti...@21934d9d]) > but failed to remove it when the web application was stopped. This is > very likely to create a memory leak. > 27.10.2010 15:37:54 org.apache.catalina.loader.WebappClassLoader > clearThreadLocalMap > SCHWERWIEGEND: The web application [/webprofile] created a ThreadLocal > with key of type [java.lang.ThreadLocal] (value > [java.lang.threadlo...@4dcc8fa3]) and a value of type > [org.apache.myfaces.config.RuntimeConfig] (value > [org.apache.myfaces.config.runtimecon...@30ea3e3c]) but failed to > remove it when the web application was stopped. This is very likely to > create a memory leak. > > > > > .Matthias > > On Fri, Oct 15, 2010 at 2:36 PM, <ssilv...@redhat.com> wrote: >> Quoting Bruno Aranda <brunoara...@gmail.com>: >> >>> Using tomcat 7 I get this warning... >>> >>> SEVERE: The web application [/editor-2.0-SNAPSHOT] created a ThreadLocal >>> with key of type [java.lang.ThreadLocal] (value >>> [java.lang.threadlo...@41649a55]) and a value of type >>> [org.apache.myfaces.config.RuntimeConfig] (value >>> [org.apache.myfaces.config.runtimecon...@33d063fd]) but failed to remove >>> it >>> when the web application was stopped. This is very likely to create a >>> memory >>> leak. >>> >>> I don't know if the RuntimeConfig could be the one responsible of the leak >>> in Jboss? >> >> That's exactly the kind of leak that Mojarra had. >> >> The other leak I've been seeing in code lately is where you use a >> WeakHashMap and the value contains the key. Your key/value will never be >> removed in that case. See the WeakHashMap javadoc if you aren't familiar >> with that leak. >> >>> >>> Bruno >>> >>> On 15 October 2010 13:12, <ssilv...@redhat.com> wrote: >>> >>>> Thanks Werner. Hope someone can take a look before 2.0.3. >>>> >>>> Stan >>>> >>>> >>>> Quoting Werner Punz <werner.p...@gmail.com>: >>>> >>>> Am 15.10.10 14:04, schrieb ssilv...@redhat.com: >>>>> >>>>>> I'm pretty sure 2.0.1 has a memory leak on undeploy. Mojarra had an >>>>>> undeploy leak and it took a long time to track it down. The same test >>>>>> I >>>>>> was using on Mojarra also failed on MyFaces but I haven't had time to >>>>>> track down the leak in MyFaces. >>>>>> >>>>>> Maybe this is fixed in 2.0.2? If not maybe someone can go ahead and >>>>>> take a look? The mem leak keeps MyFaces from passing TCK on JBoss AS. >>>>>> To test, all you need to do is create a small exploaded JSF app. Then >>>>>> have a script that touches web.xml every 10 seconds. That will cause >>>>>> the app to redeploy. You will get a PermGen error in about an hour. >>>>>> >>>>> >>>>> Hi Stan I opened a ticket under >>>>> https://issues.apache.org/jira/browse/MYFACES-2942 >>>>> >>>>> Just to make sure the info is not lost. >>>>> I hope you dont mind that I just copy pasted the info you gave here. >>>>> >>>>> >>>>> Werner >>>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >> >> >> >> >> >> > > > > -- > Matthias Wessendorf > > blog: http://matthiaswessendorf.wordpress.com/ > sessions: http://www.slideshare.net/mwessendorf > twitter: http://twitter.com/mwessendorf > -- Matthias Wessendorf blog: http://matthiaswessendorf.wordpress.com/ sessions: http://www.slideshare.net/mwessendorf twitter: http://twitter.com/mwessendorf
