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Posted to issues@spark.apache.org by "Marcelo Masiero Vanzin (Jira)" <ji...@apache.org> on 2020/01/15 21:37:00 UTC
[jira] [Resolved] (SPARK-30246) Spark on Yarn External Shuffle
Service Memory Leak
[ https://issues.apache.org/jira/browse/SPARK-30246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcelo Masiero Vanzin resolved SPARK-30246.
--------------------------------------------
Fix Version/s: 3.0.0
2.4.5
Resolution: Fixed
Issue resolved by pull request 27064
[https://github.com/apache/spark/pull/27064]
> Spark on Yarn External Shuffle Service Memory Leak
> --------------------------------------------------
>
> Key: SPARK-30246
> URL: https://issues.apache.org/jira/browse/SPARK-30246
> Project: Spark
> Issue Type: Bug
> Components: Shuffle, Spark Core
> Affects Versions: 2.4.3
> Environment: hadoop 2.7.3
> spark 2.4.3
> jdk 1.8.0_60
> Reporter: huangweiyi
> Priority: Major
> Fix For: 2.4.5, 3.0.0
>
>
> In our large busy yarn cluster which deploy Spark external shuffle service as part of YARN NM aux service, we encountered OOM in some NMs.
> after i dump the heap memory and found there are some StremState objects still in heap, but the app which the StreamState belongs to is already finished.
> Here is some relate Figures:
> !https://raw.githubusercontent.com/012huang/public_source/master/SparkPRFigures/nm_oom.png|width=100%!
> The heap dump below shows that the memory consumption mainly consists of two parts:
> *(1) OneForOneStreamManager (4,429,796,424 (77.11%) bytes)*
> *(2) PoolChunk(occupy 1,059,201,712 (18.44%) bytes. )*
> !https://raw.githubusercontent.com/012huang/public_source/master/SparkPRFigures/nm_heap_overview.png|width=100%!
> dig into the OneForOneStreamManager, there are some StreaStates still remained :
> !https://raw.githubusercontent.com/012huang/public_source/master/SparkPRFigures/streamState.png|width=100%!
> incomming references to StreamState::associatedChannel:
> !https://raw.githubusercontent.com/012huang/public_source/master/SparkPRFigures/associatedChannel_incomming_reference.png|width=100%!
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