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https://issues.apache.org/jira/browse/SPARK-15831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-15831.
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Resolution: Incomplete
> Kryo 2.21 TreeMap serialization bug causes random job failures with RDDs of
> HBase puts
> --------------------------------------------------------------------------------------
>
> Key: SPARK-15831
> URL: https://issues.apache.org/jira/browse/SPARK-15831
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.5.2, 1.6.1
> Reporter: Charles Gariépy-Ikeson
> Priority: Major
> Labels: bulk-closed
>
> This was found on Spark 1.5, but it seems that all Spark 1.x brings in the
> problematic dependency in question.
> Kryo 2.21 has a bug when serializing TreeMap that causes intermittent
> failures in Spark. This problem cause be seen especially when sinking data to
> HBase using a RDD of HBase Puts (which internally have TreeMap).
> Kryo fixed the issue in 2.21.1. Current work around involves setting
> "spark.kryo.referenceTracking" to false.
> For reference see:
> Kryo commit:
> https://github.com/EsotericSoftware/kryo/commit/00ffc7ed443e022a8438d1e4c4f5b86fe4f9912b
> TreeMap Kryo Issue: https://github.com/EsotericSoftware/kryo/issues/112
> HBase Put Kryo Issue: https://github.com/EsotericSoftware/kryo/issues/428
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