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https://issues.apache.org/jira/browse/SPARK-2744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14079497#comment-14079497
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Marcelo Vanzin commented on SPARK-2744:
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Are you sure that option means what you think it means?
The History Server will list all applications. It will just retain a max number
of them *in memory*. That option does not control how many applications are
show, it controls how much memory the HS will need.
> The configuration "spark.history.retainedApplications" is invalid
> -----------------------------------------------------------------
>
> Key: SPARK-2744
> URL: https://issues.apache.org/jira/browse/SPARK-2744
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: meiyoula
> Labels: historyserver
>
> when I set it in spark-env.sh like this:export
> SPARK_HISTORY_OPTS=$SPARK_HISTORY_OPTS" -Dspark.history.ui.port=5678
> -Dspark.history.retainedApplications=1 ", the web of historyserver retains
> more than one application
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