[jira] [Created] (SPARK-27568) readLock leaked when method take() called on a cached rdd

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

wuyi created SPARK-27568:
----------------------------

             Summary: 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: 2.4.0, 2.3.0, 2.2.0, 2.1.0, 2.0.0
            Reporter: wuyi


 
{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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