tahoe-lafs/newsfragments/3926.incompat
2022-09-21 19:26:01 -06:00

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Record both the PID and the process creation-time:
a new kind of pidfile in `running.process` records both
the PID and the creation-time of the process. This facilitates
automatic discovery of a "stale" pidfile that points to a
currently-running process. If the recorded creation-time matches
the creation-time of the running process, then it is a still-running
`tahoe run` process. Otherwise, the file is stale.
The `twistd.pid` file is no longer present.