@Dustin,
I understand the problem that this MIR is trying to resolve, so a how-to
wasn't what I was asking. :)
I was really asking, why run-one is superior to the tools cronutils
provide?:
runlock: Prevent concurrent runs of a process.
runlock tries to hold an exclusive lock while it executes a command.
Subsequent execution of runlock with the same lock, while that lock is
held, will cause the new instance of runlock to terminate with a
faliure exit code. Otherwise, the exit code of the subprocess is
returned.
http://manpages.ubuntu.com/manpages/precise/en/man1/runlock.1.html
runalarm - enforce a time limit on execution of a process
runalarm tries to execute a command and, if the subprocess does not
exit before a timer expires, tries to terminate that subprocess.
Otherwise, the exit status of the command is returned.
http://manpages.ubuntu.com/manpages/precise/en/man1/runalarm.1.html
Some stat information:
runstat tries to execute a command in a subprocess, and upon
termination of the subprocess collects some statics about that
subrocess, and writes them to a file.
These statistics include time of execution, exit status, and elapsed
time to execute, as well as use of various OS resources.
http://manpages.ubuntu.com/manpages/precise/en/man1/runstat.1.html
... The syslog integration seems to fit the Orchestra model quite nicely
- particularly posting runalarm warnings.
It *doesn't* have the run-this-one functionality, with runalarm being
the nearest option. It seems to me that this is actually a superior
suggested workflow of resolving this problem, as I fear people will
routinely be happy to essentially "killall foo ; foo" as part of a cron
task.
Thoughts?
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https://bugs.launchpad.net/bugs/888770
Title:
[MIR] run-one
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