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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-30190) HistoryServerDiskManager will fail on appStoreDir in s3
Date Mon, 16 Mar 2020 22:54:06 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun updated SPARK-30190:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> HistoryServerDiskManager will fail on appStoreDir in s3
> -------------------------------------------------------
>
>                 Key: SPARK-30190
>                 URL: https://issues.apache.org/jira/browse/SPARK-30190
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 3.1.0
>            Reporter: thierry accart
>            Priority: Major
>
> Hi
> While setting spark.eventLog.dir to s3a://... I realized that it *requires destination
directory to preexists for S3* 
> This is explained I think in HistoryServerDiskManager's appStoreDir: it tries check if
directory exists or can be created
> {{if (!appStoreDir.isDirectory() && !appStoreDir.mkdir()) \{throw new IllegalArgumentException(s"Failed
to create app directory ($appStoreDir).")}}}
> But in S3, a directory does not exists and cannot be created: directories don't exists
by themselves, they are only materialized due to existence of objects.
> Before proposing a patch, I wanted to know what are the prefered options : 
> should we have a spark option to skip the appStoreDir test, or skip it only when a particular
scheme is set, have a custom implementation of HistoryServerDiskManager ...? 
>  
> _Note for people facing the {{IllegalArgumentException:}} {{Failed to create app directory}}
*you just have to put an empty file in bucket destination 'path'*._



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