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https://issues.apache.org/jira/browse/SPARK-2261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046356#comment-14046356
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Marcelo Vanzin commented on SPARK-2261:
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https://github.com/apache/spark/pull/1222
> Spark application event logs are not very NameNode-friendly
> -----------------------------------------------------------
>
> Key: SPARK-2261
> URL: https://issues.apache.org/jira/browse/SPARK-2261
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.0.0
> Reporter: Marcelo Vanzin
> Priority: Minor
>
> Currently, EventLoggingListener will generate application logs using, in the
> worst case, five different entries in the file system:
> * The directory to hold the files
> * One file for the Spark version
> * One file for the event logs
> * One file to identify the compression codec of the event logs
> * One file to say the application is finished.
> It would be better to be more friendly to the NameNodes and use a single
> entry for all of those.
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