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  1. Hadoop HDFS
  2. HDFS-7302

namenode -rollingUpgrade downgrade may finalize a rolling upgrade

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      Remove "downgrade" from "namenode -rollingUpgrade" startup option since it may incorrectly finalize an ongoing rolling upgrade.
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      Remove "downgrade" from "namenode -rollingUpgrade" startup option since it may incorrectly finalize an ongoing rolling upgrade.

    Description

      The namenode startup option "-rollingUpgrade downgrade" is originally designed for downgrading cluster. However, running "namenode -rollingUpgrade downgrade" with the new software could result in finalizing the ongoing rolling upgrade.

      Attachments

        1. HADOOP-7302.1.patch
          5 kB
          Kai Sasaki
        2. HDFS-7302.2.patch
          10 kB
          Kai Sasaki
        3. HDFS-7302.3.patch
          11 kB
          Kai Sasaki

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            kaisasak Kai Sasaki
            szetszwo Tsz-wo Sze
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