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https://issues.apache.org/jira/browse/SPARK-23670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16606343#comment-16606343
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Marcelo Vanzin commented on SPARK-23670:
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Do you mind listing the {{SparkPlanGraphNodeWrapper}} and
{{SparkPlanGraphWrapper}} instances in your heap dump and checking their
retained size?
>From the (truncated) screenshot you posted it just looks like the plan
>descriptions are huge. This seems like a separate issue; could be a feature
>request to truncate large plans in the UI.
> 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
> Assignee: Myroslav Lisniak
> Priority: Major
> Fix For: 2.3.1, 2.4.0
>
> Attachments: heap.png, heapdump_OOM.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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