Dear all

we have deployed our university application in a cluster(did load balancing
using AJP) using tomcat application servers and apache access sever.


*Following is our apache httpd.conf configuration*

ProxyPass / balancer://myCluster/ stickysession=JSESSIONID|jsessionid
nofailover=On timeout=60
<Proxy balancer://myCluster>
    BalancerMember ajp://192.168.1.2:8009 route=sys02
    BalancerMember ajp://192.168.1.3:8009 route=sys03
</Proxy>


In *apache access server error log* we are getting following errors, and
these errors *started today*, before today our system was running smoothly,
*periodically user getting error "service temporally unavailable"*
when users reporting this issue then we are resolving it by restarting
apache access server.
However our tomcat instances are running fine.

[Thu May 12 18:13:32 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:32 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:32 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)
[Thu May 12 18:13:33 2011] [error] proxy: BALANCER: (balancer://myCluster).
All workers are in error state for route (sys03)


On *sys03 *tomcat 1500 users sessions are created, while on sys02 tomcat
only 100 sessions are created


Any help will be appreciated

Thanks

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