[jira] [Created] (HDFS-8975) Erasure coding : Fix random failure in TestSafeModeWithStripedFile

["J.Andreina (JIRA)" <ji...@apache.org>]

J.Andreina created HDFS-8975:
--------------------------------

             Summary: Erasure coding : Fix random failure in TestSafeModeWithStripedFile
                 Key: HDFS-8975
                 URL: https://issues.apache.org/jira/browse/HDFS-8975
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: J.Andreina
            Assignee: J.Andreina


TestSafeModeWithStripedFile#testStripedFile0 fails randomly because:

In below code they are restarting DN and even before DN registration happens to NN, block report is triggered and following operation fails

 i) Safemode safe block is counted (which is coming as 0 randomly , eventhough one block is safe )
 ii) Check for NN in safemode.

{code}
      cluster.restartDataNode(dnprops.remove(0));
      cluster.triggerBlockReports();
      assertEquals(1, NameNodeAdapter.getSafeModeSafeBlocks(nn));
{code}
{code}
     dnProperty = dnprops.remove(0);
    restartDN(dnProperty,nameNodeAddress);
    assertFalse(nn.isInSafeMode());
{code}



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