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  1. Hadoop HDFS
  2. HDFS-15087

RBF: Balance/Rename across federation namespaces

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Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
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    Description

      The Xiaomi storage team has developed a new feature called HFR(HDFS Federation Rename) that enables us to do balance/rename across federation namespaces. The idea is to first move the meta to the dst NameNode and then link all the replicas. It has been working in our largest production cluster for 2 months. We use it to balance the namespaces. It turns out HFR is fast and flexible. The detail could be found in the design doc. 

      Looking forward to a lively discussion.

      Attachments

        1. HDFS-15087.initial.patch
          356 kB
          Jinglun
        2. HFR_Rename Across Federation Namespaces.pdf
          234 kB
          Jinglun

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              LiJinglun Jinglun
              LiJinglun Jinglun
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                Created:
                Updated: