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https://issues.apache.org/jira/browse/SPARK-28069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-28069:
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Affects Version/s: (was: 2.4.3)
3.0.0
> Switch log directory from Spark UI without restarting history server
> --------------------------------------------------------------------
>
> Key: SPARK-28069
> URL: https://issues.apache.org/jira/browse/SPARK-28069
> Project: Spark
> Issue Type: Improvement
> Components: Web UI
> Affects Versions: 3.0.0
> Reporter: Noritaka Sekiyama
> Priority: Minor
>
> History server polls the directory specified in
> spark.history.fs.logDirectory, and displays the event logs based on the data
> included in the directory.
> In the Cloud, event logs might be written into different directories from
> different clusters.
> Currently it is not so easy to launch history server for multiple clusters
> because there is no ways to switch log directory after starting the history
> server.
> If users can switch log directory from Spark UI without restarting history
> server, it would be beneficial for users who wants to use Cloud storage for
> event log directory.
> Suggested implementation:
> * History server polls the directory specified in
> spark.history.fs.logDirectory when it started.
> * Add a button of "Switch log directory" at the top page of Web UI.
> * The directory which users selected is stored only in memory. (It won't be
> persistent configuration.)
> * Next time when history server started, the directory specified in
> spark.history.fs.logDirectory is used.
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