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  1. Hadoop HDFS
  2. HDFS-15789

Lease renewal does not require namesystem lock

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.4.0
    • 3.3.1, 3.4.0, 3.2.3
    • hdfs
    • None

    Description

      daryn found this while testing the performance for HDFS-15704.

      The lease manager is independent of the namesystem. Acquiring the lock causes unnecessary lock contention that degrades throughput.

      Attachments

        1. HDFS-15789.001.patch
          1 kB
          Jim Brennan

        Activity

          People

            jbrennan Jim Brennan
            jbrennan Jim Brennan
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            Dates

              Created:
              Updated:
              Resolved: