web - How to deploy in tomcat server without making it down -

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I want to use my project Tomcat but I do not want to do it below. That means 0 downtime deployment.

Note that once you have manually zero the number of sessions, once you unwrite the earlier versions of the web application.

Another option is to use more than one Tomcat server at one time and remove the load balancing cluster one node between them, then upgrade the dry node, then enable that node and the other Repeat the process with the node.

This is the basic stuff.


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