Github user freeman-lab commented on a diff in the pull request:
https://github.com/apache/spark/pull/3803#discussion_r24064747
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -671,7 +674,11 @@ class SparkContext(config: SparkConf) extends Logging
with ExecutorAllocationCli
classOf[LongWritable],
classOf[BytesWritable],
conf=conf)
- val data = br.map{ case (k, v) => v.getBytes}
+ val data = br.map { case (k, v) =>
+ val bytes = v.getBytes
+ assert(bytes.length == recordLength, "Byte array does not have
correct length")
+ bytes
--- End diff --
Gotcha, I think it's ok as is then. Given what `FixedLengthInputFormat` is
doing, this is more a defensive assertion, it's not something the user should
hit due to an inappropriate input.
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