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Solaris 2.6, Apache 1.9 JDK1.1.8, JServ 1.1
I have a fairly high demand site that uses 25 JServs using loadbalancing
that works fast, however, I regularly get the following in the
mod_jserv.log for differing port numbers:
[15/03/2000 14:55:02:126] (EMERGENCY) ajp12: can not connect to host
127.0.0.1:9521
[15/03/2000 14:55:02:159] (EMERGENCY) ajp12: connection fail
[15/03/2000 14:55:02:159] (ERROR) an error returned handling request via
protocol "ajpv12"
They generally carry on working but is this a symptom of overdemand or that
the loadbalancer is not picking an available JServ?
If the above error occurs should I restart that particular JServ?
A further observation is that I need to restart the JServs on average three
times a day otherwise it more regularly fails to serve pages - Im guessing
that this is again the load balancer not detecting bad JServs.
Any advise on monitoring individual JServs and the load balancing
appreciated.
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