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  1. Hadoop HDFS
  2. HDFS-10987

Make Decommission less expensive when lot of blocks present.

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • None
    • 2.8.0, 2.7.4, 3.0.0-alpha2
    • None
    • None
    • Reviewed

    Description

      When user want to decommission a node which having 50M blocks ,it could hold the namesystem lock for long time.We've seen it is taking 36 sec.

      As we knew during this time, Namenode will not available... As this decommission will continuosly run till all the blocks got replicated,hence Namenode will unavailable.

      Attachments

        1. HDFS-10987.patch
          2 kB
          Brahma Reddy Battula
        2. HDFS-10987-002.patch
          3 kB
          Brahma Reddy Battula
        3. HDFS-10987-branch-2.7.patch
          3 kB
          Brahma Reddy Battula

        Activity

          People

            brahmareddy Brahma Reddy Battula
            brahmareddy Brahma Reddy Battula
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            Dates

              Created:
              Updated:
              Resolved: