isn't SIGUSR1 reserved for the debugger?

[a0viedo]

In the docs:

'SIGUSR1' is reserved by Node.js to start the debugger. It's possible to install a listener but doing so might interfere with the debugger.

SIGUSR2 should be ok

[yoshuawuyts]

@a0viedo sounds reasonable!

[jonkoops]

This sounds good to me, but considering this would be a breaking change it should be handled in a major version. We can add support for 'SIGUSR2' under this version and then possibly drop SIGUSR1 in the future. Either way, this needs some thought.