Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/13152#discussion_r76170505
--- Diff:
core/src/test/scala/org/apache/spark/storage/BlockManagerReplicationSuite.scala
---
@@ -347,6 +347,47 @@ class BlockManagerReplicationSuite extends
SparkFunSuite
}
/**
+ * Test if we get the required number of peers when using random
sampling from
+ * RandomBlockReplicationPolicy
+ */
+ test(s"block replication - random block replication policy") {
+ val numBlockManagers = 10
+ val storeSize = 1000
+ val blockManagers = (1 to numBlockManagers).map { i =>
+ BlockManagerId(s"store-$i", "localhost", 1000 + i, None)
+ }
+ val candidateBlockManager = BlockManagerId("test-store", "localhost",
1000, None)
+ val replicationPolicy = new RandomBlockReplicationPolicy
+ val blockId = "test-block"
+
+ (1 to 10).foreach {numReplicas =>
+ logInfo(s"Num replicas : $numReplicas")
--- End diff --
are these logging information useful in tests?
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