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https://issues.apache.org/jira/browse/SPARK-27568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27568:
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Assignee: Apache Spark
> readLock leaked when method take() called on a cached rdd
> ---------------------------------------------------------
>
> Key: SPARK-27568
> URL: https://issues.apache.org/jira/browse/SPARK-27568
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.4.0
> Reporter: wuyi
> Assignee: Apache Spark
> Priority: Minor
>
>
> {code:java}
> sc.parallelize(Range(0, 10), 1).cache().take(1){code}
>
> if execute the above code in Spark, we'll see the line below in log:
> *19/04/25 23:48:54 INFO Executor: 1 block locks were not released by TID = 0:*
> *[rdd_0_0]*
>
> and, If we set "spark.storage.exceptionOnPinLeak"=true, job will fail.
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