[ 
https://issues.apache.org/jira/browse/SPARK-11293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15200543#comment-15200543
 ] 

Nezih Yigitbasi commented on SPARK-11293:
-----------------------------------------

[~joshrosen] any plans to fix this? I believe we are hitting this issue with 
{{1.6.0}}

{code}
16/03/17 21:38:38 INFO memory.TaskMemoryManager: Acquired by 
org.apache.spark.shuffle.sort.ShuffleExternalSorter@6ecba8f1: 32.0 KB
16/03/17 21:38:38 INFO memory.TaskMemoryManager: 1528015093 bytes of memory 
were used by task 103134 but are not associated with specific consumers
16/03/17 21:38:38 INFO memory.TaskMemoryManager: 1528047861 bytes of memory are 
used for execution and 80608434 bytes of memory are used for storage
16/03/17 21:38:38 ERROR executor.Executor: Managed memory leak detected; size = 
1528015093 bytes, TID = 103134
16/03/17 21:38:38 ERROR executor.Executor: Exception in task 448.0 in stage 
273.0 (TID 103134)
java.lang.OutOfMemoryError: Unable to acquire 128 bytes of memory, got 0
        at 
org.apache.spark.memory.MemoryConsumer.allocatePage(MemoryConsumer.java:120)
        at 
org.apache.spark.shuffle.sort.ShuffleExternalSorter.acquireNewPageIfNecessary(ShuffleExternalSorter.java:354)
        at 
org.apache.spark.shuffle.sort.ShuffleExternalSorter.insertRecord(ShuffleExternalSorter.java:375)
        at 
org.apache.spark.shuffle.sort.UnsafeShuffleWriter.insertRecordIntoSorter(UnsafeShuffleWriter.java:237)
        at 
org.apache.spark.shuffle.sort.UnsafeShuffleWriter.write(UnsafeShuffleWriter.java:164)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
        at org.apache.spark.scheduler.Task.run(Task.scala:89)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
16/03/17 21:38:38 ERROR util.SparkUncaughtExceptionHandler: Uncaught exception 
in thread Thread[Executor task launch worker-0,5,main]
java.lang.OutOfMemoryError: Unable to acquire 128 bytes of memory, got 0
        at 
org.apache.spark.memory.MemoryConsumer.allocatePage(MemoryConsumer.java:120)
        at 
org.apache.spark.shuffle.sort.ShuffleExternalSorter.acquireNewPageIfNecessary(ShuffleExternalSorter.java:354)
        at 
org.apache.spark.shuffle.sort.ShuffleExternalSorter.insertRecord(ShuffleExternalSorter.java:375)
        at 
org.apache.spark.shuffle.sort.UnsafeShuffleWriter.insertRecordIntoSorter(UnsafeShuffleWriter.java:237)
        at 
org.apache.spark.shuffle.sort.UnsafeShuffleWriter.write(UnsafeShuffleWriter.java:164)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
        at 
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
        at org.apache.spark.scheduler.Task.run(Task.scala:89)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
16/03/17 21:38:38 INFO storage.DiskBlockManager: Shutdown hook called
16/03/17 21:38:38 INFO util.ShutdownHookManager: Shutdown hook called
{code}

> Spillable collections leak shuffle memory
> -----------------------------------------
>
>                 Key: SPARK-11293
>                 URL: https://issues.apache.org/jira/browse/SPARK-11293
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.3.1, 1.4.1, 1.5.1, 1.6.0
>            Reporter: Josh Rosen
>            Assignee: Josh Rosen
>            Priority: Critical
>
> I discovered multiple leaks of shuffle memory while working on my memory 
> manager consolidation patch, which added the ability to do strict memory leak 
> detection for the bookkeeping that used to be performed by the 
> ShuffleMemoryManager. This uncovered a handful of places where tasks can 
> acquire execution/shuffle memory but never release it, starving themselves of 
> memory.
> Problems that I found:
> * {{ExternalSorter.stop()}} should release the sorter's shuffle/execution 
> memory.
> * BlockStoreShuffleReader should call {{ExternalSorter.stop()}} using a 
> {{CompletionIterator}}.
> * {{ExternalAppendOnlyMap}} exposes no equivalent of {{stop()}} for freeing 
> its resources.



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