[jira] [Created] (HDFS-4204) TestNNThroughputBenchmark fails in branch-1

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

Tsz Wo (Nicholas), SZE created HDFS-4204:
--------------------------------------------

             Summary: TestNNThroughputBenchmark fails in branch-1
                 Key: HDFS-4204
                 URL: https://issues.apache.org/jira/browse/HDFS-4204
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Tsz Wo (Nicholas), SZE


{noformat}
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
    at java.lang.String.charAt(String.java:686)
    at org.apache.hadoop.net.NetUtils.normalizeHostName(NetUtils.java:539)
    at org.apache.hadoop.net.NetUtils.normalizeHostNames(NetUtils.java:562)
    at org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:88)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1047)
    ...
    at org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark$StatsDaemon.run(NNThroughputBenchmark.java:377)
{noformat}

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