Ingo, sounds like some kind of replication scheme.... cant say I understand,
know it can get complex, I ended up making a dB replication server once to
try keep clusters independent of each other.
Anyway, what about naturally occuring unique numbers, like the IP address of
the machine.
That you could stick in the dB and each machine will know it already.
like this for example
String ipaddr = InetAddress.getLocalHost().getHostAddress();
Maybe?
----- Original Message -----
From: "Ingo Düppe" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Wednesday, June 27, 2007 10:13 PM
Subject: Re: Server Node Id
Well, the reason is, that I need to run some tasks that have to be
executed on each node once within the cluster. So each node must be able
to identify these tasks that still need to be executed on this node. So in
my solution the server node gets its id and checks which was the last task
it has executed.
Therefore the id must not change after each startup.
- Ingo
Johnny Kewl schrieb:
Interesting question... I dont know if there is a property one can call.
I had a similar need behind a JK load balancing scheme, what I did was
just generate a unique ID when each cluster webapp starts up, something
like the MS GUID idea.
No pre-configuration required.
I think it would be very interesting to know why you doing this, think
the guys will then really be abe to give you some good idea's.
----- Original Message ----- From: "Ingo Düppe"
<[EMAIL PROTECTED]>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Wednesday, June 27, 2007 12:07 PM
Subject: Server Node Id
Hello,
i run an application within a tomcat cluster. Now I need a unique key
for each server node for the application. My first solution was a
property file within the war file. But this is not so handy on
deployment cycles.
Is there a better way to place a unique identify for each cluster node
or does a identifier already exist.
The id must only be unique within the cluster not globaly.
Regard
Ingo
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