André Warnier wrote:
Christopher Schultz wrote:
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Prarthana,
On 6/19/15 5:08 AM, Prarthana Agwania wrote:
We have a requirement wherein we would like to know the urls of
each of the tomcat instance running on different servers. The
scenario is somewhat like,
1. There are multiple servers running on different machines say
Server1, Server2, Server3
2. There are multiple Tomcat instances running on each of the
machines as independent instances say, Server1--> Tomcat1,
Tomcat2, Tomcat3.....Server2--> Tomcat5, Tomcat6,
Tomcat7.........Server3-->Tomcat8, Tomcat9, Tomcat10 P.S. - Tomcat
servers are not clustered
Now, is there a way that an external user who does not have access
to the servers can know the urls for each Tomcat running under
different servers? Or, is it possible that Server1 or Tomcat1 can
act as the master and have the information about other
servers(remember they are not clustered)?Can this information be
made available under one hood and used further to deploy wars or
modify any configuration etc?
This is something you will have to build yourself. You may be able to
build something using components Tomcat provides (e.g. Tribes), but
there is nothing like this that exists already.
Usually, people want to mask the size of their cluster from external
users. What's your use case here?
I think that the OP just explained it above, at the end of his message.
Prarthana, you may want to have a look at something like Bonjour
(https://en.wikipedia.org/wiki/Bonjour_%28software%29).
Each Tomcat would have to register with the service when it starts up,
and de-register when it stops. And then some client could find out
about the available Tomcats.
Looks like something for a LifeCycleListener..
Add-on : as a matter of fact, someone seems to have a similar idea :
http://www.floop.org.uk/projects/tomcat-registry
Not much there yet, but it may be worth talking to them.
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