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https://issues.apache.org/jira/browse/SPARK-17356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Zhong updated SPARK-17356:
-------------------------------
Attachment: jstack.txt
> Out of memory when calling TreeNode.toJSON
> ------------------------------------------
>
> Key: SPARK-17356
> URL: https://issues.apache.org/jira/browse/SPARK-17356
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Sean Zhong
> Attachments: jmap.txt, jstack.txt, queryplan.txt
>
>
> When using MLLib, TreeNode.toJSON may cause out of memory exception with
> stack trace like this
> {code}
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> at scala.collection.mutable.AbstractSeq.<init>(Seq.scala:47)
> at scala.collection.mutable.AbstractBuffer.<init>(Buffer.scala:48)
> at scala.collection.mutable.ListBuffer.<init>(ListBuffer.scala:46)
> at scala.collection.immutable.List$.newBuilder(List.scala:396)
> at
> scala.collection.generic.GenericTraversableTemplate$class.newBuilder(GenericTraversableTemplate.scala:64)
> at
> scala.collection.AbstractTraversable.newBuilder(Traversable.scala:105)
> at
> scala.collection.TraversableLike$class.filter(TraversableLike.scala:262)
> at scala.collection.AbstractTraversable.filter(Traversable.scala:105)
> at
> scala.collection.TraversableLike$class.filterNot(TraversableLike.scala:274)
> at scala.collection.AbstractTraversable.filterNot(Traversable.scala:105)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:20)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:20)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:20)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:25)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:20)
> at
> org.json4s.jackson.JValueSerializer.serialize(JValueSerializer.scala:7)
> at
> com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:128)
> at
> com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:2881)
> at
> com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:2338)
> at org.json4s.jackson.JsonMethods$class.compact(JsonMethods.scala:34)
> at org.json4s.jackson.JsonMethods$.compact(JsonMethods.scala:50)
> at
> org.apache.spark.sql.catalyst.trees.TreeNode.toJSON(TreeNode.scala:566){code}
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