On 31 January 2011 20:45, <rj...@apache.org> wrote:
> Author: rjung
> Date: Mon Jan 31 20:45:31 2011
> New Revision: 1065767
>
> URL: http://svn.apache.org/viewvc?rev=1065767&view=rev
> Log:
> Add session creation / expiration rate statistics to the session managers.
>
> Backport of r1036595 from trunk, resp. r1061433 from TC6.
>
> Modified:
> tomcat/sandbox/tomcat-oacc/trunk/docs/changelog.xml
>
> tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/session/DeltaManager.java
>
> Modified: tomcat/sandbox/tomcat-oacc/trunk/docs/changelog.xml
> URL:
> http://svn.apache.org/viewvc/tomcat/sandbox/tomcat-oacc/trunk/docs/changelog.xml?rev=1065767&r1=1065766&r2=1065767&view=diff
> ==============================================================================
> --- tomcat/sandbox/tomcat-oacc/trunk/docs/changelog.xml (original)
> +++ tomcat/sandbox/tomcat-oacc/trunk/docs/changelog.xml Mon Jan 31 20:45:31
> 2011
> @@ -31,6 +31,10 @@
> <body>
> <section name="Tomcat OACC 0.1 (rjung)">
> <subsection name="Cluster">
> + <add>
> + Provide session creation and destruction rate metrics in the session
> + managers. (rjung)
> + </add>
> <fix>
> <bug>50600</bug>: Prevent a
> <code>ConcurrentModificationException</code>
> when removing a WAR file via the FarmWarDeployer. (rjung)
>
> Modified:
> tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/session/DeltaManager.java
> URL:
> http://svn.apache.org/viewvc/tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/session/DeltaManager.java?rev=1065767&r1=1065766&r2=1065767&view=diff
> ==============================================================================
> ---
> tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/session/DeltaManager.java
> (original)
> +++
> tomcat/sandbox/tomcat-oacc/trunk/src/share/org/apache/catalina/cluster/session/DeltaManager.java
> Mon Jan 31 20:45:31 2011
> @@ -25,6 +25,7 @@ import java.io.ByteArrayOutputStream;
> import java.io.IOException;
> import java.io.ObjectInputStream;
> import java.io.ObjectOutputStream;
> +import java.lang.reflect.Method;
> import java.util.ArrayList;
> import java.util.Date;
> import java.util.Iterator;
> @@ -43,6 +44,7 @@ import org.apache.catalina.cluster.Catal
> import org.apache.catalina.cluster.ClusterMessage;
> import org.apache.catalina.cluster.Member;
> import org.apache.catalina.cluster.tcp.ReplicationValve;
> +import org.apache.catalina.session.ManagerBase;
> import org.apache.catalina.util.CustomObjectInputStream;
> import org.apache.catalina.util.LifecycleSupport;
> import org.apache.catalina.util.StringManager;
> @@ -140,6 +142,7 @@ public class DeltaManager extends Cluste
> private boolean receiverQueue = false ;
> private boolean stateTimestampDrop = true ;
> private long stateTransferCreateSendTime;
> + private boolean hasSessionCreateStatistics = false;
Could/should be made final?
>
> // ------------------------------------------------------------------
> stats attributes
>
> @@ -168,6 +171,17 @@ public class DeltaManager extends Cluste
> // -------------------------------------------------------------
> Constructor
> public DeltaManager() {
> super();
> + /* Check for TC 6.0.27+ API */
> + Class<?> clazz = super.getClass();
> + try {
> + Method method = clazz.getDeclaredMethod("getSessionCreateRate",
> + new Class[] {});
> + hasSessionCreateStatistics = true;
> + } catch (NoSuchMethodException e) {
> + // IGNORE
> + } catch (SecurityException e) {
> + // IGNORE
> + }
> }
>
> // -------------------------------------------------------------
> Properties
> @@ -1377,6 +1391,18 @@ public class DeltaManager extends Cluste
> public synchronized void resetStatistics() {
> processingTime = 0 ;
> expiredSessions = 0 ;
> + if (hasSessionCreateStatistics) {
> + sessionCreationTiming.clear();
> + while (sessionCreationTiming.size() <
> + ManagerBase.TIMING_STATS_CACHE_SIZE) {
> + sessionCreationTiming.add(null);
> + }
> + sessionExpirationTiming.clear();
> + while (sessionExpirationTiming.size() <
> + ManagerBase.TIMING_STATS_CACHE_SIZE) {
> + sessionExpirationTiming.add(null);
> + }
> + }
> rejectedSessions = 0 ;
> sessionReplaceCounter = 0 ;
> counterNoStateTransfered = 0 ;
>
>
>
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