https://issues.apache.org/bugzilla/show_bug.cgi?id=47515
Summary: Tomcat can't replicate session when it is started.
Product: Tomcat 6
Version: 6.0.18
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Cluster
AssignedTo: dev@tomcat.apache.org
ReportedBy: yoshihara.ryu...@oss.ntt.co.jp
CC: yoshihara.ryu...@oss.ntt.co.jp
System
two Tomcat Server(AP1,AP2)
Tomcat's version is 6.0.18.
Replication method is Delta Manager
I stopped Tomcat of AP1.
Then, I restarted Tomcat of AP1.
Then, for AP1, Tomcat's log is as follows.
Jul 2, 2009 4:51:04 PM
org.apache.catalina.ha.session.DeltaManager getAllClusterSessions
WARNING: Manager [/tpcw]: Drop message SESSION-DELTA
inside GET_ALL_SESSIONS sync phase start date 7/2/09 4:51 PM message date
1/1/70 9:00 AM
Jul 2, 2009 4:51:04 PM
org.apache.catalina.ha.session.DeltaManager getAllClusterSessions
WARNING: Manager [/tpcw]: Drop message SESSION-ACCESSED
inside GET_ALL_SESSIONS sync phase start date 7/2/09 4:51 PM message date
1/1/70 9:00 AM
TimeStamp is incorrect when SESSION-DELTA or SESSION-ACCESSED because "1/1/70
9:00 AM" isn't created time of session.
In this case, AP1's Tomcat may drop all session data.
As a result, AP1's Tomcat can't replicate session.
If TimeStamp is updated when update last replicated time, it goes well.
I made patch.
DeltaManager's patch.
Index: java/org/apache/catalina/ha/session/DeltaManager.java
===================================================================
--- java/org/apache/catalina/ha/session/DeltaManager.java (revision 792004 (
https://svn.apache.org/viewcvs.cgi?view=rev&rev=792004 ))
+++ java/org/apache/catalina/ha/session/DeltaManager.java (working copy)
@@ -1162,7 +1162,10 @@
}
//update last replicated time
- if (msg != null)
session.setLastTimeReplicated(System.currentTimeMillis());
+ if (msg != null){
+ session.setLastTimeReplicated(System.currentTimeMillis());
+ msg.setTimestamp(session.getLastTimeReplicated());
+ }
return msg;
} catch (IOException x) {
log.error(sm.getString("deltaManager.createMessage.unableCreateDeltaRequest",sessionId),
x);
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