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  1. Hadoop HDFS
  2. HDFS-11956

Do not require a storage ID or target storage IDs when writing a block

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 3.0.0-alpha4
    • Fix Version/s: 3.0.0-alpha4
    • Component/s: None
    • Labels:
      None
    • Target Version/s:
    • Release Note:
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      Hadoop 2.x clients do not pass the storage ID or target storage IDs when writing a block. For backwards compatibility, the DataNode will not require the presence of these fields. This means older clients are unable to write to a particular storage as chosen by the NameNode (e.g. HDFS-9806).
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      Hadoop 2.x clients do not pass the storage ID or target storage IDs when writing a block. For backwards compatibility, the DataNode will not require the presence of these fields. This means older clients are unable to write to a particular storage as chosen by the NameNode (e.g. HDFS-9806 ).

      Description

      Seems like HDFS-9807 broke backwards compatibility with Hadoop 2.x clients. When talking to a 3.0.0-alpha4 DN with security on:

      2017-06-06 23:27:22,568 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Block token verification failed: op=WRITE_BLOCK, remoteAddress=/172.28.208.200:53900, message=Block token with StorageIDs [DS-c0f24154-a39b-4941-93cd-5b8323067ba2] not valid for access with StorageIDs []

        Attachments

        1. HDFS-11956.004.patch
          4 kB
          Ewan Higgs
        2. HDFS-11956.003.patch
          17 kB
          Ewan Higgs
        3. HDFS-11956.002.patch
          16 kB
          Ewan Higgs
        4. HDFS-11956.001.patch
          14 kB
          Ewan Higgs

          Issue Links

          is broken by

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-9807 Add an optional StorageID to writes

          • Major - Major loss of function.
          • Resolved

            Activity

              People

              • Assignee:
                ehiggs Ewan Higgs
                Reporter:
                andrew.wang Andrew Wang
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                Dates

                • Created:
                  Updated:
                  Resolved: