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From "Filip Hanik - Dev" <devli...@hanik.com>
Subject Re: Cluster: No members active in cluster group.
Date Wed, 28 Apr 2004 22:38:48 GMT
try this,
1. download this jar
   http://cvs.apache.org/~fhanik/tomcat-replication.jar

2. Open two terminals 
   a) Terminal one run
   java -cp tomcat-replication.jar MCaster 239.255.10.10 2525 Terminal1
   b) Terminal two run
   java -cp tomcat-replication.jar MCaster 239.255.10.10 2525 Terminal2

you should be getting both message on each terminal, then multicasting is working

Filip
   

----- Original Message ----- 
From: "Leonard Sitongia" <sitongia@ucar.edu>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Wednesday, April 28, 2004 5:26 PM
Subject: Re: Cluster: No members active in cluster group.



On Apr 28, 2004, at 4:21 PM, Filip Hanik - Dev wrote:

> your mcast is not working for address 239.255.10.10
> and the port you have,
> you need to enable multicast,
>
Thanks for your rapid response, Filip.

Here's the configuration of the interface:

UP,BROADCAST,RUNNING,MULTICAST,IPv4,NOFAILOVER>

And an example of traffic I see:

squirrel:/usr/local/tomcat5# snoop -r multicast 239.255.10.10
Using device /dev/ce (promiscuous mode)
128.117.224.86 -> 239.255.10.10 UDP D=2525 S=2525 LEN=49
128.117.224.85 -> 239.255.10.10 UDP D=2525 S=2525 LEN=49
128.117.224.86 -> 239.255.10.10 UDP D=2525 S=2525 LEN=49
128.117.224.85 -> 239.255.10.10 UDP D=2525 S=2525 LEN=49

So, it looks like both nodes are sending multicast pings.  Doesn't this 
mean it is enabled?  Thanks for your help!


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