vanzin commented on a change in pull request #25299: [SPARK-27651][Core] Avoid
the network when shuffle blocks are fetched from the same host
URL: https://github.com/apache/spark/pull/25299#discussion_r315851620
##########
File path:
core/src/test/scala/org/apache/spark/ExternalShuffleServiceSuite.scala
##########
@@ -96,6 +99,39 @@ class ExternalShuffleServiceSuite extends ShuffleSuite with
BeforeAndAfterAll wi
e.getMessage should include ("Fetch failure will not retry stage due to
testing config")
}
+ test("SPARK-27651: host local disk reading avoids external shuffle service
on the same node") {
+ val confWithHostLocalRead =
+ conf.clone.set(config.SHUFFLE_HOST_LOCAL_DISK_READING_ENABLED, true)
+ sc = new SparkContext("local-cluster[2,1,1024]", "test",
confWithHostLocalRead)
+ sc.getConf.get(config.SHUFFLE_HOST_LOCAL_DISK_READING_ENABLED) should
equal(true)
+ sc.env.blockManager.externalShuffleServiceEnabled should equal(true)
+ sc.env.blockManager.externalShuffleServiceEnabled should equal(true)
Review comment:
Duplicate
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