RE: Question about Tomcat memory leaks
Hi Guenter, You could have a look at: http://wiki.apache.org/tomcat/FAQ/Memory But since you describe "server" memory exhaustion, you should use Windows perfmon tool to log process memory (see HOW TO: Create and Configure Performance Monitor Trace Logs, http://support.microsoft.com/?kbid=302552 ) and determine which process is leaking. If this is tomcat, then start by reducing -Xmx option to a level that the server can handle (and not crash). And finally, use the very good suggestions of others to use a java memory profiler. Regards, Christophe -Message d'origine- De : Guenter Knauf [mailto:[EMAIL PROTECTED] Envoyé : vendredi 11 avril 2008 14:18 À : dev@tomcat.apache.org Objet : Question about Tomcat memory leaks Hi all, I've a prob with a Tomcat application. This is an app which was bought by a customer which I work for. The app runs on a plain WinXP box with nothing else installed on it but only the Tomcat servive + MySQL server. The app is used through the standalone http connector; Tomcat version is 5.5.25. Now since few days the box tends to crash with all memory exhausted... I cant tell at the moment if any component of the involved software packages was updated recently. Now my question is: can someone give me some hints how I can observe the memory consumption of Tomcat to see if there might be a leak either in Tomcat self (saw some BZ, and ChangeLog entries that something was fixed with 5.5.26), or also with their app? thanks in advance for any suggestions! greets, Guen. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
svn commit: r647477 - /tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java
Author: rjung
Date: Sat Apr 12 10:45:11 2008
New Revision: 647477
URL: http://svn.apache.org/viewvc?rev=647477&view=rev
Log:
Mostly undo r641265:
We need the new Cluster interface methods
registerManager() and removeManager() but since our managers
never call them, keep logic inside the old methods.
Modified:
tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java
Modified:
tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java
URL:
http://svn.apache.org/viewvc/tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java?rev=647477&r1=647476&r2=647477&view=diff
==
---
tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java
(original)
+++
tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/tcp/SimpleTcpCluster.java
Sat Apr 12 10:45:11 2008
@@ -553,31 +553,28 @@
} catch (Exception x) {
log.error("Unable to load class for replication manager", x);
manager = new
org.apache.catalina.cluster.session.DeltaManager();
-}
-}finally {
+} finally {
+if (manager != null) {
+manager.setDistributable(true);
+if (manager instanceof ClusterManager) {
+ClusterManager cmanager = (ClusterManager) manager;
+cmanager.setDefaultMode(true);
+cmanager.setName(getManagerName(name, manager));
+cmanager.setCluster(this);
+}
+}
+}}finally {
Thread.currentThread().setContextClassLoader(oldCtxLoader);
}
return manager;
}
+/** This method is actually never called.
+ * The TC 6 cluster interface forces it to exist,
+ * but the ported cluster managers from TC 5.5
+ * use addManager(String, Manager) instead.
+ */
public void registerManager(Manager manager) {
-
-if (! (manager instanceof ClusterManager)) {
-log.warn("Manager [ " + manager + "] does not implement
ClusterManager, addition to cluster has been aborted.");
-return;
-}
-ClusterManager cmanager = (ClusterManager) manager ;
-cmanager.setDistributable(true);
-// Notify our interested LifecycleListeners
-lifecycle.fireLifecycleEvent(BEFORE_MANAGERREGISTER_EVENT, manager);
-String clusterName = getManagerName(cmanager.getName(), manager);
-cmanager.setName(clusterName);
-cmanager.setCluster(this);
-cmanager.setDefaultMode(true);
-
-managers.put(clusterName, manager);
-// Notify our interested LifecycleListeners
-lifecycle.fireLifecycleEvent(AFTER_MANAGERREGISTER_EVENT, manager);
}
/**
@@ -599,17 +596,12 @@
}
}
-/**
- * remove an application form cluster replication bus
- *
- * @see
org.apache.catalina.ha.CatalinaCluster#removeManager(java.lang.String,Manager)
+/** This method is actually never called.
+ * The TC 6 cluster interface forces it to exist,
+ * but the ported cluster managers from TC 5.5
+ * use RemoveManager(String, Manager) instead.
*/
public void removeManager(Manager manager) {
-if (manager != null && manager instanceof ClusterManager ) {
-ClusterManager cmgr = (ClusterManager) manager;
-String name = cmgr.getName();
-removeManager(name, manager);
-}
}
/**
-
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svn commit: r647479 - /tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml
Author: rjung Date: Sat Apr 12 10:46:04 2008 New Revision: 647479 URL: http://svn.apache.org/viewvc?rev=647479&view=rev Log: Use ant task xslt instead of style for docs. Get rid of ant warnings. Modified: tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml Modified: tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml URL: http://svn.apache.org/viewvc/tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml?rev=647479&r1=647478&r2=647479&view=diff == --- tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml (original) +++ tomcat/sandbox/tomcat-oacc/trunk/docs/build.xml Sat Apr 12 10:46:04 2008 @@ -69,7 +69,7 @@ - - + @@ -86,14 +86,14 @@ - - + - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
svn commit: r647480 - /tomcat/sandbox/tomcat-oacc/trunk/build.xml
Author: rjung Date: Sat Apr 12 10:46:44 2008 New Revision: 647480 URL: http://svn.apache.org/viewvc?rev=647480&view=rev Log: We don't pretend to be "the" cluster. Modified: tomcat/sandbox/tomcat-oacc/trunk/build.xml Modified: tomcat/sandbox/tomcat-oacc/trunk/build.xml URL: http://svn.apache.org/viewvc/tomcat/sandbox/tomcat-oacc/trunk/build.xml?rev=647480&r1=647479&r2=647480&view=diff == --- tomcat/sandbox/tomcat-oacc/trunk/build.xml (original) +++ tomcat/sandbox/tomcat-oacc/trunk/build.xml Sat Apr 12 10:46:44 2008 @@ -15,7 +15,7 @@ See the License for the specific language governing permissions and limitations under the License. --> - + - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
