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  1. Hadoop HDFS
  2. HDFS-1052 HDFS scalability with multiple namenodes
  3. HDFS-1703

HDFS federation: Improve start/stop scripts and add script to decommission datanodes

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Details

    • Sub-task
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • Federation Branch
    • Federation Branch, 0.23.0
    • scripts
    • None
    • Incompatible change, Reviewed
    • The masters file is no longer used to indicate which hosts to start the 2NN on. The 2NN is now started on hosts when dfs.namenode.secondary.http-address is configured with a non-wildcard IP.

    Description

      This Jira covers two issues:

      1. Startup scripts should start namenodes, secondary namenodes and datanodes on hosts retunred by getConfig (new feature). This patch is spread out to both common(HADOOP-7179) and hdfs (this Jira).
      2. Decommission script to decommission datanodes

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            tanping Tanping Wang Assign to me
            tanping Tanping Wang
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