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Jimmy,
On 7/31/15 9:15 AM, Jimmy Chang wrote:
> When I uncomment the line <Cluster
> className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> in
> server.xml and restart tomcat.
>
> I got the following error message.
>
> SEVERE [Tribes-Task-Receiver-6]
> org.apache.catalina.tribes.group.GroupChannel.messageReceived
> Unable to deserialize
> message:ClusterData[src=org.apache.catalina.tribes.membership.MemberIm
pl[tcp://{127,
>
>
0, 1, 1}:4000,{127, 0, 1, 1},4000, alive=93539 48554, securePort=-1,
> UDP Port=-1, id={-16 88 -120 -72 11 -128 79 55 -116 -66 -101 -52 96
> -27 -117 122 }, payload={}, command={}, domain ={}, ]; id={82 5 125
> 66 -125 -81 70 8 -80 -69 30 89 -42 -3 -116 -102 }; sent=2015-07-31
> 20:41:02.308] java.io.InvalidClassException:
> org.apache.catalina.ha.session.SessionMessageImpl; local class
> incompatible: stream classdesc serialVersionUID = 1, local class
> serialVersionUID = 2 at
> java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:621)
>
> [snip]
>
> Here are the tomcat status.
>
> Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME:
> /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp
> Using JRE_HOME: /usr Using CLASSPATH:
> /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.
jar
>
>
Server version: Apache Tomcat/8.0.24
> Server built: Jul 1 2015 20:19:55 UTC Server number: 8.0.24.0 OS
> Name: Linux OS Version: 3.8.13-68.3.3.el6uek.x86_64
> Architecture: amd64 JVM Version: 1.8.0_45-b14 JVM Vendor:
> Oracle Corporation
Are all Tomcat instances in the cluster running the same version of
Tomcat? Are all instances running the same version of your application?
Do you have any idea which class is being deserialized when this
happens? A serialVersionUID of "1" or "2" is a bit odd, so I'm
guessing that's a class from your own application.
- -chris
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