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>The only idea that I have so far is to create a test request to the
>servlet and compare the output with the expected output, but this will
>not report problems with a failed JServ insdtance in the case of
>load-balancing and fail-over.
In addition to creating the load-balanced set, you can create mounts for the
individual machines. For example, if you have
ApJServMount /j balance://set/j
and you add machines m1..m3 to the load-balance set, you can also add
ApJServMount /j_m1 m1/j
ApJServMount /j_m2 m2/j
ApJServMount /j_m3 m3/j
This will allow you to individually address the machines through your
normally balanced web server. I don't know enough about apache/jserv to
know if you could add security so that these mount points are not accessible
from the "outside."
Although this will tell you if the individual machines are responding, it
doesn't exercize the jserv load balancer, so if it goes, you still don't
know.
Hope this helps,
Dan
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