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  1. Lustre
  2. LU-14146 Massive directory metadata operation performance decrease
  3. LU-15527

remove dependency between transactions started from the same MDT

Details

    • Technical task
    • Resolution: Fixed
    • Minor
    • Lustre 2.16.0
    • None
    • None
    • 9223372036854775807

    Description

      In one MDT system recovery, the transactions are replayed in transaction order, but in DNE system recovery, the transactions are replayed on all MDTs in parallel, currently if two transactions have dependency, and the latter transaction is a distributed transaction, the dependency is eliminated by commit-on-sharing, however if these two transactions are started by the same MDT, they are replayed by transaction order, therefore commit-on-sharing is not needed here.

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        Issue Links

          is related to

          Technical task - A technical task. LU-17821 LMR1c: Improve DNE Distributed Transaction Performance

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

          Activity

            [LU-15527] remove dependency between transactions started from the same MDT
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.16.0 [ 15190 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Reopened [ 4 ] New: Resolved [ 5 ]
            pjones Peter Jones made changes -
            Resolution Original: Fixed [ 1 ]
            Status Original: Closed [ 6 ] New: Reopened [ 4 ]
            laisiyao Lai Siyao made changes -
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Closed [ 6 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to EX-4451 [ EX-4451 ]
            laisiyao Lai Siyao made changes -
            Assignee Original: WC Triage [ wc-triage ] New: Lai Siyao [ laisiyao ]
            laisiyao Lai Siyao created issue -

            People

              laisiyao Lai Siyao
              laisiyao Lai Siyao
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              Dates

                Created:
                Updated:
                Resolved: