We have multiple Proxy Balancers setup using the same BalancerMembers but different URLs in the ProxyPass statements. On initial startup, if mod_proxy finds one BalancerMember with some initial settings, those carry over to all BalancerMembers regardless of the Proxy Balancer as long as the host:port match. If you hit the status page, you can adjust individual BalancerMembers accordingly. Here is an example: <Location /a> Order allow,deny Allow from all <LimitExcept GET POST> Deny from all </LimitExcept> ProxyPass balancer://a_Cluster/some_url ProxyPassReverse balancer://a_Cluster/some_url </Location> <Proxy balancer://a_Cluster> BalancerMember http://node1.com loadfactor=1 status=D BalancerMember http://node2.com loadfactor=1 ProxySet lbmethod=byrequests </Proxy> <Location /b> Order allow,deny Allow from all <LimitExcept GET POST> Deny from all </LimitExcept> ProxyPass balancer://b_Cluster/some_other_url ProxyPassReverse balancer://b_Cluster/some_other_url </Location> <Proxy balancer://b_Cluster> BalancerMember http://node1.com loadfactor=1 BalancerMember http://node2.com loadfactor=1 ProxySet lbmethod=byrequests </Proxy> <Location /c> Order allow,deny Allow from all <LimitExcept GET POST> Deny from all </LimitExcept> ProxyPass balancer://c_Cluster/yet_another_url ProxyPassReverse balancer://c_Cluster/yet_another_url </Location> <Proxy balancer://c_Cluster> BalancerMember http://node1.com loadfactor=1 ProxySet lbmethod=byrequests </Proxy> We would like to have the first BalancerMember in 'a_Cluster' come up disabled but the others using the same host and port to be enabled in the other LoadBalancers. When Apache starts, you get the following: LoadBalancer Status for balancer://a_cluster Worker URL Route RouteRedir Factor Set Status Elected To From http://node1.com 1 0 Dis 0 0 0 http://node2.com 1 0 Ok 0 0 0 LoadBalancer Status for balancer://b_cluster Worker URL Route RouteRedir Factor Set Status Elected To From http://node1.com 1 0 Dis 0 0 0 http://node2.com 1 0 Ok 0 0 0 LoadBalancer Status for balancer://c_cluster Worker URL Route RouteRedir Factor Set Status Elected To From http://node1.com 1 0 Dis 0 0 0 So even though only the first LoadBalancer had the first Worker URL set for disabled, all that match the host:port are all set disabled. This does the same thing if you try and use status=H as well. This also happens if you use 'ibset'. Using 'factor' only sets the one for that LoadBalancer as I would expect.
Mixing balancer and members can be problematic. We do provide the *Inherit commands to make better sense of it all, but this mostly devolves into a configuration issue.
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