Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/17140#discussion_r104016148
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/TaskDescription.scala ---
@@ -86,7 +86,10 @@ private[spark] object TaskDescription {
dataOut.writeInt(taskDescription.properties.size())
taskDescription.properties.asScala.foreach { case (key, value) =>
dataOut.writeUTF(key)
- 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 --
(here's the code:
http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/io/ObjectOutputStream.java#1160.
I guess one downside of that is that it's more time-consuming because it does
some extra steps, but I'm not sure that is a huge issue)
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