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  1. Lustre
  2. LU-5676

DNE 2: cache LMV EA in LOD

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      15898

      Description

      For a striped directory, the on-disk master LMV EA only contains the header information, not contains the FIDs of the shards. When some thread tries to access the master LMV EA, it will trigger the iteration against all the shards to collect the FID of each shard to compose of the integrated master LMV EA. Currently, we have no cache for the master LMV EA in LOD, then it will cause iteration every time when the master LMV EA accessed. To avoid that, we can cache the master LMV EA in LOD.

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              Assignee:
              di.wang Di Wang
              Reporter:
              yong.fan nasf (Inactive)
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                Dates

                Created:
                Updated:
                Resolved: