[jira] [Resolved] (SPARK-20664) Remove stale applications from SHS listing

["Imran Rashid (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Imran Rashid resolved SPARK-20664.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.3.0

Issue resolved by pull request 20138
[https://github.com/apache/spark/pull/20138]

> Remove stale applications from SHS listing
> ------------------------------------------
>
>                 Key: SPARK-20664
>                 URL: https://issues.apache.org/jira/browse/SPARK-20664
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: Marcelo Vanzin
>            Assignee: Marcelo Vanzin
>            Priority: Major
>             Fix For: 2.3.0
>
>
> See spec in parent issue (SPARK-18085) for more details.
> This task is actually not explicit in the spec, and it's also an issue with the current SHS. But having the SHS persist listing data makes it worse.
> Basically, the SHS currently does not detect when files are deleted from the event log directory manually; so those applications are still listed, and trying to see their UI will either show the UI (if it's loaded) or an error (if it's not).
> With the new SHS, that also means that data is leaked in the disk stores used to persist listing and UI data, making the problem worse.



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