Topic: Dynamically route requests based on response from an App?

[j4sonryu]

Hi Apache experts,

Is there a way to make Apache dynamically route requests based on the response from an App on Tomcat?

The usage scenario is following:

1. Apache server is distributing requests to 3 different Tomcat nodes.
2. There's a status checking URL provided by the application running on Tomcat, and it returns an HTTP response and a JSON payload describing the state of the node. if the node is running ok, it returns "RUNNING" and "200 OK".
3. I want to distribute requests from Apache to the app on Tomcat only when Apache gets back "RUNNING" status or "200 OK", and ignore the Tomcat node when Apache gets something else. (and distribute to other nodes in this case)

Is this doable with Apache? Any plugin to do this?

Thanks,

Jason

[mraddi]

Hi Jason,

you may check https://httpd.apache.org/docs/2.4/mod/mod_proxy_hcheck.html#examples - this apache-module looks like the thing you want to have

Greetings
Matthias