"No protocol handler valid for the URL" with httpd mod_proxy_balancer
It turns out that I was missing a trailing slash on my
ProxyPass "/site/" "balancer://cms"
should have been:
ProxyPass "/site/" "balancer://cms/"
(Note the trailing slash before the close-quote.)
That literally fixed everything.
I'm happy to delete this question and answer if folks want to close it as "simple typographical error", but I'll leave it for now. If I get some up votes on this answer, I'll remove this note and consider it a public service for anyone who might make the same mistake.
In my case, I needed
a2enmod proxy proxy_http proxy_ajp
Same as kujiy i had to add the
I am using apache4.
My log showed messages as follows:
No protocol handler was valid for the URL /jira. If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule
so I added ( I mean uncommented) the following line to my httpd.conf:
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
saved, and the restarted the apache server.