Github user renozhang commented on a diff in the pull request:
https://github.com/apache/spark/pull/13962#discussion_r69253594
--- Diff:
yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnClusterSuite.scala ---
@@ -287,19 +330,19 @@ private object YarnClusterDriver extends Logging with
Matchers {
sc.listenerBus.waitUntilEmpty(WAIT_TIMEOUT_MILLIS)
data should be (Set(1, 2, 3, 4))
result = "success"
+
+ // Verify that the config archive is correctly placed in the
classpath of all containers.
--- End diff --
Not changing this will cause test broken, because original calling `val
configFromExecutors = sc.parallelize(1 to 4, 4)` after `sc.stop()` in finally
will failed with error
```
ApplicationMaster: Final app status: FAILED, exitCode: 15, (reason: User
class threw exception: java.lang.IllegalStateException: Cannot call methods on
a stopped SparkContext.
```
After this patch, this problem is exposed. So I put them before `sc.stop`
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