Questions about cluster-master

[jeffbski]

Answers:

1. By default, stdout/stderr is shared by all, unless you specify options.silent = true;
2. The Node.js cluster module which this builds on does open the handle to listen on in the master and then automatically passes it down the the clients, so you should have no issues using express and websockets with this.
3. Yes you can add commands to REPL, add them to options.replContext and they will be available in the repl. If you add a property then you will be able to enter that to see the current value, or even change it by setting it, like foo='xyz'. If you add a function then you would run it by doing foo(). You can add stuff to replHelp to have it show up in the help.
4. Can I restart a worker? Yes, if you want to cycle all workers one at a time, clusterMaster.restart(cb). If you just want to restart one worker, then you can send it a kill signal to have it exit and then cluster master will restart it once it exits. In your case, of CI hook, you would want all the workers to restart so clustMaster.restart(cb) is what you would use. The cb is called when it is done restarting.
5. Yes, workers that crash are restarted automatically