I am running Apache as a load balancer in a production environment. I have
set up load balancers using the apache ProxyPassMatch and <Proxy>
ProxyPassMatch ^(?i)/Test(.*)$ balancer://testcluster/Test$1
BalancerMember http://10.10.10.1 route=node1
BalancerMember http://10.10.10.2 route=node2
BalancerMember http://10.10.10.3 route=node3
BalancerMember http://10.10.10.4 route=node4
All works great, but I wish to monitor the environment more closely. Apache
can mark BalancerMembers as not ok an stop using them, I would like to
know when this happens. I could do this using the following methods:
1) tail the apache error log and alert on problems in there, I can't
however find an appropriate log entry to do this with, even if I could i'm
not sure this is a good solution anyway.
2) grab the apache provided "Load Balancer Manager" page and check if
BalancerMember statuses are not ok.
Does anyone know if there is a nicer way to do the above. And does anyone
have any tips on general realtime monitoring in apache?
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