[ 
https://issues.apache.org/jira/browse/SPARK-11293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-11293:
------------------------------------

    Assignee: Josh Rosen  (was: Apache Spark)

> 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, 1.6.1
>            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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org

Reply via email to