Netflix / genie / 2242

89%

master: 94%

Pull #853

travis-ci

Switch from 'ps' to 'kill -0' to check on children processes

Using 'ps' to check for process termination can sometimes produce false-negatives.
I.e. returning with non-zero exit code when the process is actually still running.
This situation can lead Genie to mark a job as failed when it was actually still running.

Switch to using 'kill -0' as per POSIX recommendation.

I.e. returning with non-zero exit code when the process is actually still running.
This situation can lead Genie to mark a job as failed when it was actually still running.

Switch to using  as per POSIX recommendation.
(this can still produce false negatives, such as when permissions are lacking, or when kill fails to launch due to resource exhaustion)

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