On 26/06/2021 03:58, Eric Robinson wrote:
We can run 75 to 125 instances of tomcat on a single Linux server with 12 cores
and 128GB RAM. It works great. CPU is around 25%, our JVMs are not throwing
OOMEs, iowait is minimal, and network traffic is about 30Mbps. We're happy with
the results.
Now we're upping the ante. We have a 48-core server with 1TB RAM, and we're
planning to run 600+ tomcat instances on it simultaneously. What caveats or
pitfalls should we watch out for? Are there any hard limits that would prevent
this from working as expected?
Nothing comes to mind from a Tomcat perspective. If there was going to
be an issue, it would be with the OS or the hardware and you look to
have thought all of that through. File limits are the only thing you
didn't mention that I'd want to keep an eye on.
Changing topic slightly, if there are changes we could make to Tomcat
that would it easier to run and manage that many instances do let us
know. We'd be happy to consider them.
Mark
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