Hi Zeke,
You didn't say which version of JBOSS you're using, I'm assuming its
a recent 4.x version that includes buddy-clustering. You're JBOSS
cluster will need to be reconfigured to do what you want. The JBOSS
community lists and wiki (www.jboss.org) is the best place for your
question. The JBOSS community wiki has several articles on cluster
configurations.
cheers,
--knoxy
David Knox
Information System Architect
+1 303-748-8906
http://pragmaticis.blogspot.com
On Dec 3, 2008, at 8:33 AM, Zeke wrote:
"Mark Thomas" <[EMAIL PROTECTED]> wrote：
Zeke wrote:
Hi:
I have a JBOSS cluster which use Apache with mod_jk as HTTP load
balancer. In my cluster, some nodes are deployed web service, but
not all.
For example, node 1 contains web servicebook_service, I can call
the web
service using URL "http://www.node1.com/book_service";, but node 2
does not
contain it. I hope mod_jk can help me to detect whether the
requested web
service exists. That is to say, if I call the web service using "
http://www.loadbalancer.com/book_service";, mod_jk can know only node 1
contains the web service and node 2 not, then the request will
always be
dispatched to node 1. But with my current configuration on mod_jk and
Apache, I fount that the request can be dispatched to node 2. Then
surely
exception will be thrown, since the web service not exists on node 2.
Can mod_jk support it? Do I need some specific configuration?
Any suggestion from you will be very appreciated!
Only map the web service url to the nodes where it exists.
Mark
Thanks for the reply, Mark!
But I need a more "dynamic" way. For example, node 1 has deployed
the web
service war, but it is down for some reason and can not work any
more. Then
the web service URL will be unavailable while the JBOSS are still
running.
Mapping the web service url seems can not handle it, the load
balancer will
still dispatch the request to node 1. I hope mod_jk can detect if the
requested web service is available at runtime.
Thanks!
Zeke
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