[Koha-bugs] [Bug 33898] New: background_jobs_worker.pl may leave defunct children processes for extended periods of time

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=33898

            Bug ID: 33898
           Summary: background_jobs_worker.pl may leave defunct children
                    processes for extended periods of time
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: kyle at bywatersolutions.com
        QA Contact: testopia at bugs.koha-community.org

It appears that the background jobs worker can leave defunct processes for
periods of time. Though it is mostly harmless, it would be nice if that did not
happen. Children are reaped automatically when start or wait_all_children are
called. We only call start when a new job is found, and wait_all_children after
exiting our while loop. The solution is to simply call reap_all_children after
we sleep. This is a non-blocking call that will clean up those defunct
processes.

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