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Posted to issues@mesos.apache.org by "James Peach (JIRA)" <ji...@apache.org> on 2017/11/02 18:25:00 UTC

[jira] [Created] (MESOS-8166) Improve reaper responsiveness on Linux

James Peach created MESOS-8166:
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             Summary: Improve reaper responsiveness on Linux
                 Key: MESOS-8166
                 URL: https://issues.apache.org/jira/browse/MESOS-8166
             Project: Mesos
          Issue Type: Bug
            Reporter: James Peach


The {{ReaperProcess}} polls at a dynamic interval to determine whether any of its  monitored PIDs have exited. In the common case of a child process exiting, we should be able to improve its responsiveness by using [signalfd|http://man7.org/linux/man-pages/man2/signalfd.2.html] to catch {{SIGCHLD}} and immediately reap any exited processes. 



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