Nodejs app deployment keeps detecting the same port

I am trying to deploy my node.js app on render on port 9000. The logs show that it detected port 9000 at intervals of few minutes. Does this mean new processes are starting on this port 9000 ? This doesn’t happen when I run the server on my local machine. Can someone explain what does this mean ?

I’ve never seen multiple of the same port being reported in logs before. My best guess is that port 9000 is being closed and re-opened, more accurately your application is binding, unbind, and re-binding to it.

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