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Option 4: Run multiple intsances/nodes on the same machine. This is like options 2 and 3 except it's simpler because there's no virtualization or containerization. It's all running natively on the host. Here's a list of caveats and recommendations when doing so (from here). Max heap size for each node instance should be < 32Gb. This is because a ...


There are several ways to install diff-versioned software on the same server but (I think) the best variant is packing your application into different Docker containers.


The problem is Tomcat waiting for entropy to build up. Try add the following system property: See: Tomcat7 hangs on deploying apps

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