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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-10541) Allow ApplicationHistoryProviders to provide their own text when there aren't any complete apps
Date Fri, 14 Oct 2016 19:28:20 GMT

    [ https://issues.apache.org/jira/browse/SPARK-10541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15576264#comment-15576264
] 

Apache Spark commented on SPARK-10541:
--------------------------------------

User 'ajbozarth' has created a pull request for this issue:
https://github.com/apache/spark/pull/15490

> Allow ApplicationHistoryProviders to provide their own text when there aren't any complete
apps
> -----------------------------------------------------------------------------------------------
>
>                 Key: SPARK-10541
>                 URL: https://issues.apache.org/jira/browse/SPARK-10541
>             Project: Spark
>          Issue Type: Improvement
>          Components: Web UI
>    Affects Versions: 1.5.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> The current History Server text when there are no complete apps is hard coded for the
FS provider and talks about log directories. As it is static text, it doesn't get any recent
information from that FS provider itself, such as the directory it is looking at.
> For other ApplicationHistoryProviders, there will be different reasons
> for the list being empty, including, in the timeline implementation: failure to talk
to the server, authentication failure, or simply no events being present.
> Even {{FsHistoryProvider}} could help users by actually printing what the log directory
was.
> If a method {{emptyListingText()}} `was supported, each implementation could provide
a live explanation of the current state



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