Doesn't AWS ELB fir to the purpose. May be something similar in your environment that translates hopefully
On Fri, Apr 8, 2016 at 12:34 AM, Christoph Nenning < [email protected]> wrote: > > 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 a 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 suggest me any other modules if any, other than > > mod-cluster. > > Also is it possible to handle dynamic registration of tomcat with LB in > > tomcat itself with minimal changes ? > > If anyone used mod_cluster or some other modules, can you please share > some > > links for doing the setup. > > > > Thanks in Advance. > > > > Best Regards, > > Mohan > > > We do it like this: > - mod_proxy > - several small config files which can be easily overwritten (and > generated by scripts) > - apache graceful instead of restart > > So when a tomcat instance is created or stopped we re-generate the > according httpd config file and do graceful reload. > > > Regards, > Christoph > > This Email was scanned by Sophos Anti Virus >
