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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/11/28 08:30:00 UTC

[jira] [Resolved] (SPARK-22622) OutOfMemory thrown by Closure Serializer

     [ https://issues.apache.org/jira/browse/SPARK-22622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-22622.
-------------------------------
    Resolution: Not A Problem

You have something exceptionally large caught in a closure. This is not a bug. 

> OutOfMemory thrown by Closure Serializer
> ----------------------------------------
>
>                 Key: SPARK-22622
>                 URL: https://issues.apache.org/jira/browse/SPARK-22622
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.2.0
>         Environment: Spark 2.2.0
> Hadoop 2.9.0
>            Reporter: Raghavendra
>            Priority: Critical
>
> While moving from a Stage to another, the Closure serializer is trying to Serialize the Closures and throwing OOMs.
>  This is happening when the RDD size crosses 70 GB. 
> I set the Driver Memory to 225 GB and yet the error persists.
> {color:red}Exception in thread "dag-scheduler-event-loop" java.lang.OutOfMemoryError: Requested array size exceeds VM limit
> 	at java.util.Arrays.copyOf(Arrays.java:3236)
> 	at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
> 	at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
> 	at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
> 	at org.apache.spark.util.ByteBufferOutputStream.write(ByteBufferOutputStream.scala:41)
> 	at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877)
> 	at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1786)
> 	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1189)
> 	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
> 	at org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:43)
> 	at org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
> 	at org.apache.spark.scheduler.DAGScheduler.submitMissingTasks(DAGScheduler.scala:1003)
> 	at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$submitStage(DAGScheduler.scala:930)
> 	at org.apache.spark.scheduler.DAGScheduler.handleJobSubmitted(DAGScheduler.scala:874)
> 	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1677)
> 	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1669)
> 	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1658)
> 	at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)
> {color}



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