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  1. Lustre
  2. LU-3489

ZFS OSD missing OI iterator for scrub/LFSCK

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    • 8772

    Description

      There is not yet an object table iterator for ZFS OSDs. This is needed in order to implement OI Scrub for ZFS (which would also allow a file-level backup of an ldiskfs-based MDT/OST to be restored into a newly-formatted ZFS filesystem) and verifying the Lustre namespace metadata (e.g. linkEA and FID-in-dirent).

      It is also needed for implementing the distributed MDT-OST verification for LFSCK Phase II, and MDT-MDT verification for DNE in LFSCK Phase III.

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          [LU-3489] ZFS OSD missing OI iterator for scrub/LFSCK
          johann Johann Lombardi (Inactive) added a comment -

          Seems that i have used the wrong ticket, sorry for the noise.

          johann Johann Lombardi (Inactive) added a comment - Seems that i have used the wrong ticket, sorry for the noise.
          gerrit Gerrit Updater added a comment -

          Johann Lombardi (johann.lombardi@intel.com) merged in patch http://review.whamcloud.com/12771/
          Subject: LU-3489 TEI-2862 harness: add support for MDT failover
          Project: soak-test-harness
          Branch: master
          Current Patch Set:
          Commit: 30151681e78e27bf3120e24b5ee166b163ecf1cb

          gerrit Gerrit Updater added a comment - Johann Lombardi (johann.lombardi@intel.com) merged in patch http://review.whamcloud.com/12771/ Subject: LU-3489 TEI-2862 harness: add support for MDT failover Project: soak-test-harness Branch: master Current Patch Set: Commit: 30151681e78e27bf3120e24b5ee166b163ecf1cb
          gerrit Gerrit Updater added a comment -

          Johann Lombardi (johann.lombardi@intel.com) uploaded a new patch: http://review.whamcloud.com/12771
          Subject: LU-3489 TEI-2862 harness: add support for MDT failover
          Project: soak-test-harness
          Branch: master
          Current Patch Set: 1
          Commit: bd083f77d5e2e5b02a10bc8299fa2ff1c726eb4a

          gerrit Gerrit Updater added a comment - Johann Lombardi (johann.lombardi@intel.com) uploaded a new patch: http://review.whamcloud.com/12771 Subject: LU-3489 TEI-2862 harness: add support for MDT failover Project: soak-test-harness Branch: master Current Patch Set: 1 Commit: bd083f77d5e2e5b02a10bc8299fa2ff1c726eb4a
          yujian Jian Yu added a comment -

          Patch http://review.whamcloud.com/7152 was reverted from Lustre b2_5 branch because it caused regression failure LU-5649.

          yujian Jian Yu added a comment - Patch http://review.whamcloud.com/7152 was reverted from Lustre b2_5 branch because it caused regression failure LU-5649 .
          jlevi Jodi Levi (Inactive) added a comment -

          The fix for LU-4202 has landed so closing this ticket. Please reopen if more work is needed

          jlevi Jodi Levi (Inactive) added a comment - The fix for LU-4202 has landed so closing this ticket. Please reopen if more work is needed
          adilger Andreas Dilger added a comment - - edited

          This depends on LU-4202 to land before it can be closed, since sanity-lfsck is intermittently failing for ZFS backing filesystems.

          adilger Andreas Dilger added a comment - - edited This depends on LU-4202 to land before it can be closed, since sanity-lfsck is intermittently failing for ZFS backing filesystems.
          jlevi Jodi Levi (Inactive) added a comment -

          Can this ticket be closed?

          jlevi Jodi Levi (Inactive) added a comment - Can this ticket be closed?
          bzzz Alex Zhuravlev added a comment -

          the initial patches:
          http://review.whamcloud.com/#/c/7149/
          http://review.whamcloud.com/#/c/7152/
          http://review.whamcloud.com/#/c/7155/

          there is no OI scrub functionality in, but the object iterator does enables LFSCK on ZFS.
          dmu_prefetch() needs to be exported in DMU to improve performance, Brian has already landed a patch doing so.

          bzzz Alex Zhuravlev added a comment - the initial patches: http://review.whamcloud.com/#/c/7149/ http://review.whamcloud.com/#/c/7152/ http://review.whamcloud.com/#/c/7155/ there is no OI scrub functionality in, but the object iterator does enables LFSCK on ZFS. dmu_prefetch() needs to be exported in DMU to improve performance, Brian has already landed a patch doing so.

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            bzzz Alex Zhuravlev
            adilger Andreas Dilger
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            Dates

              Created:
              Updated:
              Resolved: