Hadoop Common
  1. Hadoop Common
  2. HADOOP-1762

Namenode does not need to store storageID and datanodeID persistently

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.14.0
    • Fix Version/s: 0.15.0
    • Component/s: None
    • Labels:
      None

      Description

      Currently Namenode stores all the storage-ids it generates since the beginning (since last format). It allocates a new storageID everytime a new datanode comes online. It also stores all the known datanode ids since the beginning.

      It would be better if Namenode did not have to keep track of these. I will describe a proposal in the next comment.

      This has implecations regd how Namenode helps administrators identify 'dead datanodes' etc. These issues are addressed in HADOOP-1138.

      1. HADOOP-1762-Opt2.patch
        10 kB
        Raghu Angadi
      2. HADOOP-1762.patch
        9 kB
        Raghu Angadi
      3. HADOOP-1762-Opt2.patch
        9 kB
        Raghu Angadi
      4. HADOOP-1762-Opt2.patch
        8 kB
        Raghu Angadi
      5. HADOOP-1762-Opt2.patch
        8 kB
        Raghu Angadi
      6. HADOOP-1762-Opt2.patch
        8 kB
        Raghu Angadi
      7. HADOOP-1762-Opt2.patch
        8 kB
        Raghu Angadi
      8. HADOOP-1762.patch
        9 kB
        Raghu Angadi

        Issue Links

          Activity

          Chris Nauroth made changes -
          Link This issue relates to HDFS-4702 [ HDFS-4702 ]
          Owen O'Malley made changes -
          Component/s dfs [ 12310710 ]
          Doug Cutting made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          dhruba borthakur made changes -
          Fix Version/s 0.15.0 [ 12312565 ]
          Status Patch Available [ 10002 ] Resolved [ 5 ]
          Resolution Fixed [ 1 ]
          Raghu Angadi made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12365780 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762.patch [ 12365779 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12365669 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12364727 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12364726 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12364724 ]
          Raghu Angadi made changes -
          Attachment HADOOP-1762-Opt2.patch [ 12364717 ]
          Raghu Angadi made changes -
          Field Original Value New Value
          Attachment HADOOP-1762.patch [ 12364653 ]
          Raghu Angadi created issue -

            People

            • Assignee:
              Raghu Angadi
              Reporter:
              Raghu Angadi
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development