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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (YARN-5644) Define exit code for allowing NodeManager health script to mar
Date Tue, 13 Sep 2016 17:23:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ray Chiang resolved YARN-5644.
    Resolution: Duplicate

> Define exit code for allowing NodeManager health script to mar
> --------------------------------------------------------------
>                 Key: YARN-5644
>                 URL: https://issues.apache.org/jira/browse/YARN-5644
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Ray Chiang
>            Assignee: Yufei Gu
>              Labels: supportability
> Done as a alternate design to YARN-5567.  Define a specific exit code for the health
checker script (property yarn.nodemanager.health-checker.script.path) that allows the node
to be blacklisted.
> As discussed in the latter part of YARN-5567, the current design requirements are:
> # Ignore all exit codes from the script
> ## _except_ the newly defined error code which will mark the NodeManager as UNHEALTHY
> ## This allows any syntax or functional errors in the script to be ignored
> # Upon failure (or multiple recorded failures):
> ## Store the status in the metrics2 state on the NodeManager
> ## Allow the RM to blacklist the NM or allow the jobs to drain

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