Github user GraceH commented on a diff in the pull request:
https://github.com/apache/spark/pull/9796#discussion_r45939198
--- Diff:
core/src/test/scala/org/apache/spark/deploy/StandaloneDynamicAllocationSuite.scala
---
@@ -386,17 +386,21 @@ class StandaloneDynamicAllocationSuite
// the driver refuses to kill executors it does not know about
syncExecutors(sc)
val executors = getExecutorIds(sc)
+ val executorIdsBefore = executors.head
assert(executors.size === 2)
// kill executor 1, and replace it
assert(sc.killAndReplaceExecutor(executors.head))
eventually(timeout(10.seconds), interval(10.millis)) {
val apps = getApplications()
assert(apps.head.executors.size === 2)
+ val executorIdsAfter = getExecutorIds(sc).head
+ // make sure the old executors head has been killedAndReplaced.
+ assert(executorIdsBefore != executorIdsAfter)
}
var apps = getApplications()
- // kill executor 1
- assert(sc.killExecutor(executors.head))
+ // kill executor 1, and actually nothing to kill
+ assert(!sc.killExecutor(executors.head))
apps = getApplications()
assert(apps.head.executors.size === 2)
--- End diff --
That is why killing nothing, and executors.size == 2. Since the previous 27
was killed.
The real kill ({28}) is tested in the following case.
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