Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/13152#discussion_r75426300
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
---
@@ -160,8 +163,25 @@ private[spark] class BlockManager(
blockTransferService.init(this)
shuffleClient.init(appId)
- blockManagerId = BlockManagerId(
- executorId, blockTransferService.hostName, blockTransferService.port)
+ blockReplicationPrioritizer = {
+ val priorityClass = conf.get(
+ "spark.replication.topologyawareness.prioritizer",
+ "org.apache.spark.storage.DefaultBlockReplicationPrioritization")
+ val clazz = Utils.classForName(priorityClass)
+ val ret =
clazz.newInstance.asInstanceOf[BlockReplicationPrioritization]
+ logInfo(s"Using $priorityClass for prioritizing peers")
--- End diff --
```
Using $priorityClass for block replication policy
```
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