Hello Manuel,
On Sat, May 25, 2013 at 10:41 PM, Manuel LeNormand < manuel.lenorm...@gmail.com> wrote: > Hello all, > I have a Solr instance running on a Tomcat 6 servlet, everything worked > fine. > While upgrading to Tomcat 7.0.34, I get exceptions I'm having a hard time > to deal with. > Two kind of exceptions occur on shutdown of service: > 1. Memory leak due to threads that do not close - I understand it is not > severe, and maybe on previous version was not monitored. Still, is there > anything that is done on the servlet side that might resolve it, and what > might be sides effects of this? > Remove following lines from server.xml: <!-- Prevent memory leaks due to use of particular java/javax APIs--> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> They do no good unless you are hotdeploying new versions of wars in running production servers, and no one does that ;-) regards Leon > 2. Instance of MBeans that cannot be destroyed - btw, the MBean instance > is initiated under CATALINA_OPTS. > > Thanks in advance, > Manuel > > Here are the LOGS: > INFO: A valid shutdown command was received via the shutdown port. Stopping > the Server instance. > May 13, 2013 4:22:32 PM org.apache.coyote.AbstractProtocol pause > INFO: Pausing ProtocolHandler ["http-bio-8080"] > May 13, 2013 4:22:32 PM org.apache.coyote.AbstractProtocol pause > INFO: Pausing ProtocolHandler ["ajp-bio-8009"] > May 13, 2013 4:22:32 PM org.apache.catalina.core.StandardService > stopInternal > INFO: Stopping service Catalina > May 13, 2013 4:22:35 PM org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SEVERE: The web application [/solr] appears to have started a thread named > [localhost-startStop-1-SendThread(zookeeper2:2181)] but has failed to stop > it. This is very likely to create a memory leak. > May 13, 2013 4:22:35 PM org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SEVERE: The web application [/solr] appears to have started a thread named > [localhost-startStop-1-EventThread] but has failed to stop it. This is very > likely to create a memory leak. > May 13, 2013 4:22:35 PM org.apache.catalina.loader.WebappClassLoader > checkThreadLocalMapForLeaks > SEVERE: The web application [/solr] created a ThreadLocal with key of type > [org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value > [org.apache.solr.schema.DateField$ThreadLocalDateFormat@19c212b0]) and a > value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat] > (value > [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a]) > but failed to remove it when the web application was stopped. Threads are > going to be renewed over time to try and avoid a probable memory leak. > May 13, 2013 4:22:35 PM org.apache.catalina.loader.WebappClassLoader > checkThreadLocalMapForLeaks > SEVERE: The web application [/solr] created a ThreadLocal with key of type > [org.apache.solr.schema.DateField.ThreadLocalDateFormat] (value > [org.apache.solr.schema.DateField$ThreadLocalDateFormat@19c212b0]) and a > value of type [org.apache.solr.schema.DateField.ISO8601CanonicalDateFormat] > (value > [org.apache.solr.schema.DateField$ISO8601CanonicalDateFormat@6b2ed43a]) > but failed to remove it when the web application was stopped. Threads are > going to be renewed over time to try and avoid a probable memory leak. > May 13, 2013 4:22:35 PM org.apache.coyote.AbstractProtocol stop > INFO: Stopping ProtocolHandler ["http-bio-8080"] > May 13, 2013 4:22:35 PM org.apache.coyote.AbstractProtocol stop > INFO: Stopping ProtocolHandler ["ajp-bio-8009"] > May 13, 2013 4:22:35 PM org.apache.coyote.AbstractProtocol destroy > INFO: Destroying ProtocolHandler ["http-bio-8080"] > May 13, 2013 4:22:35 PM org.apache.coyote.AbstractProtocol destroy > INFO: Destroying ProtocolHandler ["ajp-bio-8009"] > May 13, 2013 4:22:35 PM org.apache.catalina.util.LifecycleMBeanBase > unregister > WARNING: Failed to unregister MBean with name > [Catalina:type=Executor,name=tomcatThreadPool] during component destruction > javax.management.InstanceNotFoundException: > Catalina:type=Executor,name=tomcatThreadPool > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(Unknown > Source) > at > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(Unknown > Source) > at > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(Unknown > Source) > at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(Unknown > Source) > at > > org.apache.catalina.util.LifecycleMBeanBase.unregister(LifecycleMBeanBase.java:194) > at > > org.apache.catalina.util.LifecycleMBeanBase.destroyInternal(LifecycleMBeanBase.java:73) > at > > org.apache.catalina.core.StandardThreadExecutor.destroyInternal(StandardThreadExecutor.java:150) > at > org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305) > at > > org.apache.catalina.core.StandardService.destroyInternal(StandardService.java:589) > at > org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305) > at > > org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:822) > at > org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305) > at org.apache.catalina.startup.Catalina.stop(Catalina.java:752) > at org.apache.catalina.startup.Catalina.start(Catalina.java:713) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451) > > May 13, 2013 4:22:35 PM org.apache.catalina.deploy.NamingResources > destroyInternal > WARNING: Failed to destroy MBean for naming resource [UserDatabase] > javax.management.InstanceNotFoundException: > Users:type=UserDatabase,database=UserDatabase > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(Unknown > Source) > at > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(Unknown > Source) > at > > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(Unknown > Source) > at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(Unknown > Source) > at > > org.apache.catalina.mbeans.MBeanUtils.destroyMBeanUserDatabase(MBeanUtils.java:1621) > at > org.apache.catalina.mbeans.MBeanUtils.destroyMBean(MBeanUtils.java:1207) > at > > org.apache.catalina.deploy.NamingResources.destroyInternal(NamingResources.java:1084) > at > org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305) > at > > org.apache.catalina.core.StandardServer.destroyInternal(StandardServer.java:825) > at > org.apache.catalina.util.LifecycleBase.destroy(LifecycleBase.java:305) > at org.apache.catalina.startup.Catalina.stop(Catalina.java:752) > at org.apache.catalina.startup.Catalina.start(Catalina.java:713) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451) >
