We have 10 web servers with Tomcat's running on them and a mod_jk configuration to prefer the tomcat on localhost and only failover to another machine if the local one fails. This worked fine under our older mod_jk, however, we just upgraded to 1.2.15 and now it that the local_worker properties are no longer supported, it's load balancing every request.
So I checked out the workers.properties options page:
http://tomcat.apache.org/connectors-doc/config/workers.html and noticed the new distance option so that I can give localhost a distance of 0 and everything else a greater distance so that the load balancer should always prefer localhost. However, it seems to be ignoring the distance property completely and load balancing every request. Can anyone suggest what I might try to get it to always use the local tomcat for requests unless it fails:
worker.list=tomcat
worker.tomcat.type=lb
worker.tomcat.socket_timeout=195
worker.tomcat.balance_workers=localhost,latin1,latin2,...
worker.tomcat.sticky_session=False
worker.localhost.port=8009
worker.localhost.host=localhost
worker.localhost.type=ajp13
worker.localhost.lbfactor=1
worker.localhost.distance=0
worker.latin1.port=8009
worker.latin1.host=latin1
worker.latin1.type=ajp13
worker.latin1.lbfactor=1
worker.latin1.distance=1
worker.latin2.port=8009
worker.latin2.host=latin2
worker.latin2.type=ajp13
worker.latin2.lbfactor=1
worker.latin2.distance=1
Thanks,
Todd
