[mod_cluster-dev] Adding Tomcat instances dynamically to Apache Load Balancer without restart

[Mohanavelu Subramanian]

Hi All,

Good Morning.

I am working in a Cloud based project where I encounter Scale-in/ Scale out
of Tomcat instances.
We have Apache load balancer as well. The requirement is to dynamically add
any new Tomcat instances during scale out to Load balancer and remove
tomcat instances during scale-in, without restart of balancer.

I did initial analysis on this. I understand that with mod_jk or mod_proxy,
we need to restart the balancer in the above cases.

I came across  module mod_cluster which supports to dynamically add or
remove tomcat instances from load balancer, without restart. Here the
tomcat automatically registers with load balancer through separate channel.
But I have process running which gets the status of tomcat whether it is
successfully started or not. Is there a way to register the tomcat through
my process with the balancer instead of tomcat itself registering with
balancer?

Could someone please share me some links for doing the setup.

Thanks in Advance.

Best Regards,
Mohan
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