httpd
httpd copied to clipboard
apache
Make the health check timeout for balancer member configurable
Atfer httpd upgrade to version 55, the health check timeout has been set to be equal to the request timeout. We have lost the capability to define a timeout for the health check that is different from that of the request.
Our worker request timeout is set to 60s (time needed to treat a request) while its health check should be quick (5s). The need for a short health check is to allow httpd to quickly detect suspended workers (that do not receive hc) and set their health status to HcFl so that requests do not get routed to them.
The goal of this pull request is to make the timeout of the health check configurable by balancer member.
Hello @ylavic, I really appreciate any insights or feedback you might have about this PR.
Hello @icing, as this PR will be closed soon, I really appreciate any insights or feedback you might have about it.
@Mrida sorry, I am not really familiar with that part of the code. I recommend contacting the dev mailing list to get more attention at [email protected]
@ylavic This is a real issue and there are many use cases. I am currently stuck on a project where the application can take a long time to process the request, thus requiring a lengthy BalancerMember timeout. Having a separate healthcheck timeout, like in Nginx or HAproxy, will help without having to rearchitect the infrastructure.
Also mentioned here: https://bz.apache.org/bugzilla/show_bug.cgi?id=60948#c9
I think @ylavic is waiting for the review correction he did.
@Mrida Can you update this change ?