Hadoop Common
  1. Hadoop Common
  2. HADOOP-8167

Configuration deprecation logic breaks backwards compatibility

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Blocker Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.23.3, 0.24.0
    • Fix Version/s: 0.23.3, 2.0.2-alpha
    • Component/s: conf
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      The deprecated Configuration logic works as follows:

      For a dK deprecated key in favor of nK:

      • on set(dK, V), it stores (nK,V)
      • on get(dK) it does a reverseLookup of dK to nK and looks for get(nK)

      While this works fine for single set/get operations, the iterator() method that returns an iterator of all config key/values, returns only the new keys.

      This breaks applications that did a set(dK, V) and expect, when iterating over the configuration to find (dK, V).

      1. HADOOP-8167.patch
        6 kB
        Alejandro Abdelnur

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            • Assignee:
              Alejandro Abdelnur
              Reporter:
              Alejandro Abdelnur
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              • Created:
                Updated:
                Resolved:

                Development