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From kayousterhout <>
Subject [GitHub] spark pull request #17140: [SPARK-19796][CORE] Fix serialization of long pro...
Date Thu, 02 Mar 2017 20:11:24 GMT
Github user kayousterhout commented on a diff in the pull request:
    --- Diff: core/src/main/scala/org/apache/spark/scheduler/TaskDescription.scala ---
    @@ -86,7 +86,10 @@ private[spark] object TaskDescription {
         dataOut.writeInt( { case (key, value) =>
    -      dataOut.writeUTF(value)
    +      // SPARK-19796 -- writeUTF doesn't work for long strings, which can happen for
property values
    +      val bytes = value.getBytes("utf-8")
    +      dataOut.writeInt(bytes.length)
    +      dataOut.write(bytes)
    --- End diff --
    Also if you do think it makes sense to use writeObject, would you mind quickly checking
the size of the serialized task in this test with your original version and with writeObject
just to make sure the size is comparable?

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