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  1. Lustre
  2. LU-5676

DNE 2: cache LMV EA in LOD

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Details

    • Bug
    • Resolution: Duplicate
    • Minor
    • None
    • None
    • None
    • 3
    • 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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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-6999 Disable xattr cache for remote mdt object

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-7660 FS default striping settings only honored on MDT 0

          • 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-8159 cache xattr in ldiskfs OSD

          • Major - Major loss of function.
          • Resolved

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              di.wang Di Wang
              yong.fan nasf (Inactive)
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                Updated:
                Resolved: