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  1. Lustre
  2. LU-10018

MDT as a statfs proxy

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.12.0
    • None
    • 9223372036854775807

    Description

      given MDT updates statfs data from all OSTs every second it can provide data to the clients. this can be useful for idling connections feature as we won't need to connect to OST for a single OST_STATFS RPC. this can also make df less expensive in terms of RPC and faster.

      Attachments

        Issue Links

          is blocking

          Improvement - An improvement or enhancement to an existing feature or task. LU-7236 OST connect and disconnect on demand

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-11375 Client 2.10 fails to mount Server 2.11.54

          • Blocker - Blocks development and/or testing work, production could not run.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-7770 conf-sanity test_50b: Error: 'lazystatfs should not return EIO'

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-11721 "lfs df -i" prints used blocks percentage instead of inodes

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-7880 add OST/MDT performance statistics to obd_statfs

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. LU-7233 parallelize lmv_statfs() implementation

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-9555 "df /path/to/project" should return projid-specific values

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            [LU-10018] MDT as a statfs proxy
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-748 [ DDN-748 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-11721 [ LU-11721 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-11375 [ LU-11375 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-7770 [ LU-7770 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.12.0 [ 13495 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            pjones Peter Jones added a comment -

            Landed for 2.12

            pjones Peter Jones added a comment - Landed for 2.12
            gerrit Gerrit Updater added a comment -

            Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/29136/
            Subject: LU-10018 protocol: MDT as a statfs proxy
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: b500d5193360711a6c6b07497f34e61cc590cf19

            gerrit Gerrit Updater added a comment - Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/29136/ Subject: LU-10018 protocol: MDT as a statfs proxy Project: fs/lustre-release Branch: master Current Patch Set: Commit: b500d5193360711a6c6b07497f34e61cc590cf19
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-9555 [ LU-9555 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-7880 [ LU-7880 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-7233 [ LU-7233 ]

            People

              bzzz Alex Zhuravlev
              bzzz Alex Zhuravlev
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              Dates

                Created:
                Updated:
                Resolved: