Daemon module

[VitalyOstanin]

I propose to explore the possibility of creating a separate module that implements daemon'ization (linux daemon howto).

Daemon'ization need to go to the background and transfer control to the code payload. Code and its dependencies should be minimal (less often to update), resource costs, too (to reduce the risk of killing by kernel).

The module can be individually implement an interface for integration in luster.

[corpix]

I have implemented an external daemonization tool for luster https://github.com/corpix/luster-daemon
Take a look, it's pretty simple.

[VitalyOstanin]

Looks good, thank you!

process.env.__daemon = true;

For node apps you should use 'NODE_' prefix in env vars.

var reportTime = 15; // sec

Best to be configurable.

console.log(util.format('Waiting for message from all(%s) workers...', workers.length));

util.format already used internally in console.log

[corpix]

For node apps you should use 'NODE_' prefix in env vars.

I believe NODE_ is reserved for internal nodejs things, not external modules.

var reportTime = 15; // sec
Best to be configurable.
...
console.log(util.format('Waiting for message from all(%s) workers...', workers.length));

You are right, will be fixed in next release.