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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-27216) Upgrade RoaringBitmap to 0.7.45 to fix Kryo unsafe ser/dser issue
Date Mon, 02 Mar 2020 20:46:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-27216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun updated SPARK-27216:
----------------------------------
    Affects Version/s: 2.0.0
                       2.1.0
                       2.2.0

> Upgrade RoaringBitmap to 0.7.45 to fix Kryo unsafe ser/dser issue
> -----------------------------------------------------------------
>
>                 Key: SPARK-27216
>                 URL: https://issues.apache.org/jira/browse/SPARK-27216
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.0.0, 2.1.0, 2.2.0, 2.3.3, 2.4.0, 3.0.0
>            Reporter: Lantao Jin
>            Assignee: Lantao Jin
>            Priority: Major
>              Labels: correctness
>             Fix For: 2.3.4, 2.4.2, 3.0.0
>
>
> HighlyCompressedMapStatus uses RoaringBitmap to record the empty blocks. But RoaringBitmap-0.5.11
couldn't be ser/deser with unsafe KryoSerializer.
> We can use below UT to reproduce:
> {code}
>   test("kryo serialization with RoaringBitmap") {
>     val bitmap = new RoaringBitmap
>     bitmap.add(1787)
>     val safeSer = new KryoSerializer(conf).newInstance()
>     val bitmap2 : RoaringBitmap = safeSer.deserialize(safeSer.serialize(bitmap))
>     assert(bitmap2.equals(bitmap))
>     conf.set("spark.kryo.unsafe", "true")
>     val unsafeSer = new KryoSerializer(conf).newInstance()
>     val bitmap3 : RoaringBitmap = unsafeSer.deserialize(unsafeSer.serialize(bitmap))
>     assert(bitmap3.equals(bitmap)) // this will fail
>   }
> {code}
> Upgrade to latest version 0.7.45 to fix it



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