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  1. Hadoop YARN
  2. YARN-11390

TestResourceTrackerService.testNodeRemovalNormally: Shutdown nodes should be 0 now expected: <1> but was: <0>

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      Some times the TestResourceTrackerService.testNodeRemovalNormally fails with the following message

      java.lang.AssertionError: Shutdown nodes should be 0 now expected:<1> but was:<0>
      at org.apache.hadoop.yarn.server.resourcemanager.TestResourceTrackerService.testNodeRemovalUtilDecomToUntracked(TestResourceTrackerService.java:1723)
      at org.apache.hadoop.yarn.server.resourcemanager.TestResourceTrackerService.testNodeRemovalUtil(TestResourceTrackerService.java:1685)
      at org.apache.hadoop.yarn.server.resourcemanager.TestResourceTrackerService.testNodeRemovalNormally(TestResourceTrackerService.java:1530)

      This can happen in case if the hardcoded 1s sleep in the test not enough for proper shut down.

      To fix this issue we should poll the cluster status with a time out, and see the cluster can reach the expected state

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              bkosztolnik Bence Kosztolnik
              bkosztolnik Bence Kosztolnik
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