Daryn Sharp created HDFS-12705:
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             Summary: WebHdfsFileSystem exceptions should retain the caused by 
exception
                 Key: HDFS-12705
                 URL: https://issues.apache.org/jira/browse/HDFS-12705
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs
    Affects Versions: 2.8.0
            Reporter: Daryn Sharp


{{WebHdfsFileSystem#runWithRetry}} uses reflection to prepend the remote host 
to the exception.  While it preserves the original stacktrace, it omits the 
original cause which complicates debugging.



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