Github user CodingCat commented on a diff in the pull request:
https://github.com/apache/spark/pull/8533#discussion_r38914955
--- Diff: core/src/main/scala/org/apache/spark/scheduler/TaskLocation.scala
---
@@ -35,16 +37,26 @@ case class ExecutorCacheTaskLocation(override val host:
String, executorId: Stri
/**
* A location on a host.
+ * The host names will be resolved to IP address in case
SPARK_LOCAL_HOSTNAME is unset
--- End diff --
You may want to refer "SPARK-10149" in the comments so that others can have
more clues to understand the changes here....
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