Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-14134

reduce credits for new writing potentially

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0
    • None
    • None
    • 9223372036854775807

    Description

      For new writting, Lustre reserve credits in worst cases, eg for 1M write, we need reserve more than 500 credits.

      This means we need much more journal space than data for each write, which means we need large journal to reach good performance.

      One of potential way to improve this could be we allow transaction restart for write commit
      case.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14729 read-only remount due to transaction error in __ldiskfs_handle_dirty_metadata

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

          Bug - A problem which impairs or prevents the functions of the product. LU-9985 osd_read_prep() ignores errors from osd_ldiskfs_map_inode_pages()

          • 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-14187 LU-14134 causes many racer timeouts

          • 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-14304 parallel-scale-nfsv3 test racer_on_nfs hangs

          • 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-14641 per extents bytes allocation stats

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

          Activity

            [LU-14134] reduce credits for new writing potentially
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-9985 [ LU-9985 ]
            wshilong Wang Shilong (Inactive) made changes -
            Link New: This issue is related to LU-14729 [ LU-14729 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-14641 [ LU-14641 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-2078 [ DDN-2078 ]
            jhammond John Hammond made changes -
            Link New: This issue is related to LU-14304 [ LU-14304 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-14187 [ LU-14187 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.14.0 [ 14490 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            pjones Peter Jones made changes -
            Summary Original: reduce credits for new writting potentially New: reduce credits for new writing potentially
            wshilong Wang Shilong (Inactive) made changes -
            Assignee Original: WC Triage [ wc-triage ] New: Wang Shilong [ wshilong ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to EX-1998 [ EX-1998 ]
            wshilong Wang Shilong (Inactive) created issue -

            People

              wshilong Wang Shilong (Inactive)
              wshilong Wang Shilong (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: