Hi,
You can use web-server <Client> directive to solve this problem to certain extent. Please modify obj.conf as follows :
From :
NameTrans fn="name-trans-passthrough" name="lbplugin" config-file="loadbalancer.xml"
To :
<Client uri="(*.jsp|*.do)">
NameTrans fn="name-trans-passthrough" name="lbplugin" config-file="loadbalancer.xml"
</Client>
This directive will force web-server to forward requests only for *.jsp and *.do files to application-server. All other requests will be served locally from doc-root.
For more details on this directive please refer to link :
http://docs.sun.com/app/docs/doc/820-1643/abvau?l=en&a=view&q=%3CClient%3E+web+server
However this is active filtering of request, rather than trying to send requests to application-server if and only if web-server is not able to service the request.
Thanks,
Kshitiz
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