Hi guys here is detail description:
I have Apache/2.0.45 running on the server A
If your Apache is running on UNIX/Linux/BSD/MacOS X, load balancing with sticky sessions will work only if you use worker MPM. At least this is correct for mod_jk2, and may be the same is the cause for mod_jk.
By default Apache is been compiled with prefork MPM on UNIX/Linux/BSD.
Check with
httpd -l
If you see prefork.c, you have to recompile Apache using
./configure --with-mpm=worker ...
Hope this will help.
Vlad
And two tomcat workers are running on B and C
The problem is that I cannot get Tomcat cluster load balanced , playing around with workers.properties on Apache gave me two different situations.
1.if I have local_worker parameter equal to 1, then I have no lost sessions but also no loadbalancing . But cluster is still fail safe, if one tomcat dies - another one gets all incoming requests. 2. if I have local_worker=0 then I have a simple round- robin balancer without session affinity. So my session got lost.
configuration example workers.properties: worker.list=tomcat-worker-01,tomcat-worker-02,router worker.tomcat-worker-02.port=4007
worker.tomcat-worker-02.host=xxx.xx.x.12
worker.tomcat-worker-02.type=ajp13
worker.tomcat-worker-02.lbfactor=50
worker.tomcat-worker-02.cachesize=10
worker.tomcat-worker-02.cache_timeout=600
worker.tomcat-worker-02.socket_timeout=300
worker.tomcat-worker-02.local_worker=1
worker.tomcat-worker-01.port=5007
worker.tomcat-worker-01.host=xxx.xx.x.20
worker.tomcat-worker-01.type=ajp13
worker.tomcat-worker-01.lbfactor=50
worker.tomcat-worker-01.cachesize=10
worker.tomcat-worker-01.cache_timeout=600
worker.tomcat-worker-01.socket_timeout=300
worker.tomcat-worker-01.local_worker=1
worker.router.type=lb
worker.router.balanced_workers=tomcat-worker-01,tomcat-worker-02
worker.router.sticky_session =1
worker.router.local_worker_only=1
P.S. I checked the previous discussions related to server.xmlS configuration.
I had there:
<Engine jmvRoute="worker1" name="Standalone" defaultHost="ipaddress1" debug="0">
<Engine jmvRoute="worker2" name="Standalone" defaultHost="ipaddress2" debug="0">
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Yefym Dmukh developer
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