# Glossary

daemontools

  A process control system by D.J. Bernstein.

launchd

  A process control system used by Apple as process 1 under Mac OS X.

runit

  A process control system.

Superlance

  A package which provides various event listener implementations that plug into Supervisor which can help monitor process memory usage and crash status: https://pypi.org/pypi/superlance/.

umask

  Abbreviation of user mask: sets the file mode creation mask of the current process. See http://en.wikipedia.org/wiki/Umask.