svn commit: r814024 - /tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java

[rj...@apache.org]

Author: rjung
Date: Fri Sep 11 20:51:00 2009
New Revision: 814024

URL: http://svn.apache.org/viewvc?rev=814024&view=rev
Log:
Switch to volatile for status flag used by multiple
threads during cluster context startup.

Without volatile problems have been observed, where the
change by one thread was actually not seen by the other
thread.

Performance implications are neglectable, because the
variable is only used during context startup.

Modified:
    tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java

Modified: tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java
URL: http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java?rev=814024&r1=814023&r2=814024&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java (original)
+++ tomcat/trunk/java/org/apache/catalina/ha/session/DeltaManager.java Fri Sep 11 20:51:00 2009
@@ -112,7 +112,7 @@
     private boolean expireSessionsOnShutdown = false;
     private boolean notifyListenersOnReplication = true;
     private boolean notifySessionListenersOnReplication = true;
-    private boolean stateTransfered = false ;
+    private volatile boolean stateTransfered = false ;
     private int stateTransferTimeout = 60;
     private boolean sendAllSessions = true;
     private boolean sendClusterDomainOnly = true ;



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