Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/17070#discussion_r103098735
--- Diff:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaSource.scala
---
@@ -100,7 +100,8 @@ private[kafka010] class KafkaSource(
override def serialize(metadata: KafkaSourceOffset, out:
OutputStream): Unit = {
out.write(0) // A zero byte is written to support Spark 2.1.0
(SPARK-19517)
val writer = new BufferedWriter(new OutputStreamWriter(out,
StandardCharsets.UTF_8))
- writer.write(VERSION)
+ writer.write("v" + VERSION)
--- End diff --
Write one string, or write this in 3 steps if you're worried about
efficiency? rather than 2
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