Peter Torok created SPARK-5949:
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Summary: Driver program has to register roaring bitmap classes
used by spark with Kryo when number of partitions is greater than 2000
Key: SPARK-5949
URL: https://issues.apache.org/jira/browse/SPARK-5949
Project: Spark
Issue Type: Bug
Affects Versions: 1.2.0
Reporter: Peter Torok
When more than 2000 partitions are being used with Kryo, the following classes
need to be registered by driver program:
- org.apache.spark.scheduler.HighlyCompressedMapStatus
- org.roaringbitmap.RoaringBitmap
- org.roaringbitmap.RoaringArray
- org.roaringbitmap.ArrayContainer
- org.roaringbitmap.RoaringArray$Element
- org.roaringbitmap.RoaringArray$Element[]
Our project doesn't have dependency on roaring bitmap and
HighlyCompressedMapStatus is intended for internal spark usage. Spark should
take care of this registration when Kryo is used.
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