[jira] [Created] (HDFS-5948) TestBackupNode flakes with port in use error

["Andrew Wang (JIRA)" <ji...@apache.org>]

Andrew Wang created HDFS-5948:
---------------------------------

             Summary: TestBackupNode flakes with port in use error
                 Key: HDFS-5948
                 URL: https://issues.apache.org/jira/browse/HDFS-5948
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.2.0
            Reporter: Andrew Wang


TestBackupNode has flaked on our internal Jenkins and I found it in a few test-patch runs upstream too. Error like this:

{noformat}
Error Message:
Port in use: 0.0.0.0:50105

Stack Trace:
java.lang.AssertionError: Port in use: 0.0.0.0:50105
        at org.junit.Assert.fail(Assert.java:91)
        at org.junit.Assert.assertTrue(Assert.java:43)
        at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpoint(TestBackupNode.java:295)
        at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpointNode(TestBackupNode.java:124)
...
{noformat}



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