Process supervision is a form of operating system service management in which some master process remains the parent of the service processes.

Benefits

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Benefits[1] compared to traditional process launchers and system boot mechanisms, like System V init, include:

  • Ability to restart services which have failed
  • The fact that it does not require the use of "pidfiles"
  • Clean process state
  • Reliable logging, because the master process can capture the stdout/stderr of the service process and route it to a log
  • Faster (concurrent) and ability to start up and stop

Implementations

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References

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  1. ^ "Runit - benefits".