Re: mod_jk failover and preferring localhost

> 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
>
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