[jira] [Assigned] (SPARK-24889) dataset.unpersist() doesn't update storage memory stats

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-24889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-24889:
------------------------------------

    Assignee: Apache Spark

> dataset.unpersist() doesn't update storage memory stats
> -------------------------------------------------------
>
>                 Key: SPARK-24889
>                 URL: https://issues.apache.org/jira/browse/SPARK-24889
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: Yuri Bogomolov
>            Assignee: Apache Spark
>            Priority: Major
>         Attachments: image-2018-07-23-10-53-58-474.png
>
>
> Steps to reproduce:
> 1) Start a Spark cluster, and check the storage memory value from the Spark Web UI "Executors" tab (it should be equal to zero if you just started)
> 2) Run:
> {code:java}
> val df = spark.sqlContext.range(1, 1000000000)
> df.cache()
> df.count()
> df.unpersist(true){code}
> 3) Check the storage memory value again, now it's equal to 1GB
>  
> Looks like the memory is actually released, but stats aren't updated. This issue makes cluster management more complicated.
> !image-2018-07-23-10-53-58-474.png!



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