Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/21658#discussion_r200586976
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
---
@@ -1569,7 +1570,8 @@ private[spark] object BlockManager {
val blockManagers = new HashMap[BlockId, Seq[String]]
for (i <- 0 until blockIds.length) {
- blockManagers(blockIds(i)) = blockLocations(i).map(_.host)
+ blockManagers(blockIds(i)) = blockLocations(i).map(
--- End diff --
nit:
```
blockLoations(i).map { loc =>
xxx
}
```
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