[jira] [Commented] (MESOS-540) Executor health checking.

["Benjamin Hindman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13702503#comment-13702503 ] 

Benjamin Hindman commented on MESOS-540:
----------------------------------------

I like it!
                
> Executor health checking.
> -------------------------
>
>                 Key: MESOS-540
>                 URL: https://issues.apache.org/jira/browse/MESOS-540
>             Project: Mesos
>          Issue Type: Improvement
>            Reporter: Benjamin Mahler
>
> We currently do not health check running executors.
> At Twitter, this has led to out-of-band health checking of executors for an internal framework.
> For the Storm framework, this has led to out-of-band health checking via ZooKeeper. Health checking would allow Storm to use finer grained executors for better isolation.
> This also helps the Hadoop and Jenkins frameworks as well should health checking be desired.
> As for implementation, I would propose adding a call on the Executor interface:
> /**
>  * Invoked by the ExecutorDriver to determine the health of the executor.
>  * When this function returns, the Executor is considered healthy.
>  */
> void heartbeat(ExecutorDriver* driver) = 0;
> The driver can then heartbeat periodically and kill when the Executor is not responding to heartbeats.

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