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  1. Hadoop HDFS
  2. HDFS-4685 Implementation of ACLs in HDFS
  3. HDFS-5620

NameNode: implement Global ACL Set as a memory optimization.

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • HDFS ACLs (HDFS-4685)
    • None
    • namenode
    • None

    Description

      The AclManager can maintain a Global ACL Set to store all distinct ACLs in use by the file system. All inodes that have the same ACL entries can share the same ACL instance.

      Attachments

        1. aclRamSizingEstimates.png
          40 kB
          Chris Nauroth
        2. aclRamSizingEstimates
          3 kB
          Chris Nauroth
        3. HDFS-5620.1.patch
          5 kB
          Chris Nauroth

        Issue Links

          Is contained by

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-7454 Reduce memory footprint for AclEntries in NameNode

          • Major - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-7456 De-duplicate AclFeature instances with same AclEntries do reduce memory footprint of NameNode

          • Major - Major loss of function.
          • Closed

          Activity

            People

              cnauroth Chris Nauroth
              cnauroth Chris Nauroth
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              Dates

                Created:
                Updated:
                Resolved: