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  1. Hadoop HDFS
  2. HDFS-7230

Add rolling downgrade documentation

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.4.0
    • 2.6.0
    • documentation
    • None
    • Reviewed

    Description

      HDFS-5535 made a lot of improvement on rolling upgrade. It also added the cluster downgrade feature. However, the downgrade described in HDFS-5535 requires cluster downtime. In this JIRA, we discuss how to do rolling downgrade, i.e. downgrade without downtime.

      Attachments

        1. h7230_20141028.patch
          6 kB
          Tsz-wo Sze

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-7302 namenode -rollingUpgrade downgrade may finalize a rolling upgrade

          • Major - Major loss of function.
          • Closed
          relates to

          New Feature - A new feature of the product, which has yet to be developed. HDFS-5535 Umbrella jira for improved HDFS rolling upgrades

          • Major - Major loss of function.
          • Closed

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              szetszwo Tsz-wo Sze
              szetszwo Tsz-wo Sze
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              Dates

                Created:
                Updated:
                Resolved: