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  1. Hadoop Common
  2. HADOOP-332

Implement remote replication of dfs namespace images and transaction logs

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • 0.4.0
    • None
    • None
    • None

    Description

      The namespace information (image and transaction logs) needs to be replicated on hosts other than the namenode to prevent data loss if a namenode crashes. In the short term we will add a new protocol to the datanodes to receive and store the namespace information.

      In the long term, it would be nice to have read-only namenodes that could receive the information and serve it up for users that want to read data, but do not need to write to the namespace.

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          is a clone of

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-90 DFS is succeptible to data loss in case of name node failure

          • Major - Major loss of function.
          • Closed

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              shv Konstantin Shvachko
              omalley Owen O'Malley
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                Created:
                Updated:
                Resolved: