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  1. Hadoop HDFS
  2. HDFS-5939

WebHdfs returns misleading error code and logs nothing if trying to create a file with no DNs in cluster

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.3.0
    • Fix Version/s: 2.4.0
    • Component/s: hdfs-client
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When trying to access hdfs via webhdfs, and when datanode is dead, user will see an exception below without any clue that it's caused by dead datanode:

      $ curl -i -X PUT ".../webhdfs/v1/t1?op=CREATE&user.name=<userName>&overwrite=false"

      ...
      {"RemoteException":{"exception":"IllegalArgumentException","javaClassName":"java.lang.IllegalArgumentException","message":"n must be positive"}}

      Need to fix the report to give user hint about dead datanode.

        Attachments

        1. HDFS-5939.007.patch
          4 kB
          Yongjun Zhang
        2. HDFS-5939.006.patch
          4 kB
          Yongjun Zhang
        3. HDFS-5939.005.patch
          5 kB
          Yongjun Zhang
        4. HDFS-5939.004.patch
          5 kB
          Yongjun Zhang
        5. HDFS-5939.003.patch
          5 kB
          Yongjun Zhang
        6. HDFS-5939.002.patch
          8 kB
          Yongjun Zhang
        7. HDFS-5939.001.patch
          7 kB
          Yongjun Zhang

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            • Assignee:
              yzhangal Yongjun Zhang
              Reporter:
              yzhangal Yongjun Zhang

              Dates

              • Created:
                Updated:
                Resolved:

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