Apache Spark commented on SPARK-23670:

User 'myroslavlisniak' has created a pull request for this issue:

> Memory leak of SparkPlanGraphWrapper in sparkUI
> -----------------------------------------------
>                 Key: SPARK-23670
>                 URL: https://issues.apache.org/jira/browse/SPARK-23670
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Myroslav Lisniak
>            Priority: Major
>         Attachments: heap.png
> Memory leak on driver for a long time running application. We have 
> application using structured streaming and running 48 hours. But driver fails 
> with out of memory after 25 hours. After investigating heap dump we found 
> that most of the memory was occupied with a lot of *SparkPlanGraphWrapper* 
> objects inside *InMemoryStore*.
>  Application was run with option: 
> --driver-memory 4G

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