Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-15789

Lease renewal does not require namesystem lock

    XMLWordPrintableJSON

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.4.0
    • Fix Version/s: 3.3.1, 3.4.0, 3.2.3
    • Component/s: hdfs
    • Labels:
      None

      Description

      Daryn Sharp 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

            • Assignee:
              Jim_Brennan Jim Brennan
              Reporter:
              Jim_Brennan Jim Brennan
            • Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: