Apache load balancing with proxy_balancer - apache

Question

I am having difficulties configuring apache 2.4 to use it's proxy_balancer mod. My use case is fairly straight forward. Requests are reaching the apache node which should be load balanced to the cluster. This is my config:
<VirtualHost *:80>
ProxyRequests off
ServerName localhost
<Proxy balancer://geocode>
BalancerMember "http://192.168.2.11:8080/ors/status"
BalancerMember "http://192.168.2.35:8080/ors/status"
Require all granted
ProxySet lbmethod=byrequests
</Proxy>
<Location /balancer-manager>
SetHandler balancer-manager
Require all granted
</Location>
ProxyPass /balancer-manager !
ProxyPass "/geocodelb" "balancer://geocode"
ProxyPass "/geocode" "http://192.168.2.35:8080/ors/status"
</VirtualHost>
When navigating to localhost:80/geocodelb I receive 404 Not Found:
129.206.205.50 - - [01/Oct/2017:19:39:55 +0000] "GET /geocodelb
HTTP/1.1" 404 164 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12;
rv:56.0) Gecko/20100101 Firefox/56.0"
but localhost:80/geocode works:
129.206.205.50 - - [01/Oct/2017:19:40:07 +0000] "GET /geocode HTTP/1.1"
200 757 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0)
Gecko/20100101 Firefox/56.0"
(The ../status points to a tomcat instance and returns a json object)
If I replace the url's of the BalancerMembers with something arbitrary - like google.com - it works.
I can also reach the balancer-manager at localhost:80/balancer-manager and obtain the correct information. If I am not mistaken it is telling me that everything looks ok (see screenshot). What am I missing here?

Answer 1

The reason for this not working is that the balancermember must be a url to a server, without a path. The path is to be added in the ProxyPass directive, like this balancer://orsbackend/ors/geocode. Here the working config:
<VirtualHost *:80>
ProxyRequests off
ServerName localhost
<Proxy balancer://orsbackend>
BalancerMember "http://192.168.2.11:8080"
BalancerMember "http://192.168.2.35:8080"
ProxySet lbmethod=byrequests
</Proxy>
<Location /balancer-manager>
SetHandler balancer-manager
Require all granted
</Location>
ProxyPass /balancer-manager !
ProxyPass "/geocode" "balancer://orsbackend/ors/geocode"
</VirtualHost>