[jira] [Resolved] (SPARK-20869) Master should clear failed apps when worker down

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-20869.
----------------------------------
    Resolution: Incomplete

> Master should clear failed apps when worker down
> ------------------------------------------------
>
>                 Key: SPARK-20869
>                 URL: https://issues.apache.org/jira/browse/SPARK-20869
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: Li Yichao
>            Priority: Minor
>              Labels: bulk-closed
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> In `Master.removeWorker`, master clears executor and driver state, but does not clear app state. App state is cleared when received `UnregisterApplication` and when `onDisconnect`, the first is when driver shutdown gracefully, the second is called when `netty`'s `channelInActive` is called (which is called when channel is closed), both of which can not handle the case when there is a network partition between master and worker.
> Follow the steps in [SPARK-19900|https://issues.apache.org/jira/browse/SPARK-19900], and see the [screenshots|https://cloud.githubusercontent.com/assets/2576762/26398697/d50735a4-40ac-11e7-80d8-6e9e1cf0b62f.png] when worker1 partitions with master, the app `app-xxx-000` is still running instead of finished because of worker1 is down.
> cc [~CodingCat]



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