Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-11623

Allow caching of open-created dentries

Details

    • 9223372036854775807

    Description

      Currently when creating/opening a file, we do not let the client hash the name so next access (frequently stat?) goes to talk on the MDS. This is also seen in various tests like mdtest.

      We should consider returning more bits from the open call. This is in addition to LU-10948 that handles similar situation for recurring non-creating opens.

      Attachments

        Issue Links

          is blocking

          Bug - A problem which impairs or prevents the functions of the product. LU-17583 Unclean direntry after rename

          • Major - Major loss of function.
          • Open
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-15725 Client side Mdtest File Read Regression introduced with fix for LU-11623

          • Major - Major loss of function.
          • Open
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-10948 client cache open lock after N opens

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

          Activity

            [LU-11623] Allow caching of open-created dentries
            adilger Andreas Dilger made changes -
            Link New: This issue is related to EX-9096 [ EX-9096 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.17.0 [ 16192 ]
            Fix Version/s Original: Lustre 2.16.0 [ 15190 ]
            lixi_wc Li Xi added a comment -

            According to Siyao, this ticket has further issue to fix in LU-17583 thus might be reasonable to defer to 2.17+

            lixi_wc Li Xi added a comment - According to Siyao, this ticket has further issue to fix in LU-17583 thus might be reasonable to defer to 2.17+
            lixi_wc Li Xi made changes -
            Link New: This issue is blocking LU-17583 [ LU-17583 ]
            pjones Peter Jones added a comment -

            Andreas

            Does this remain something that we need to address for 2.16?

            Peter

            pjones Peter Jones added a comment - Andreas Does this remain something that we need to address for 2.16? Peter
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-4751 [ DDN-4751 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LR-5 [ LR-5 ]
            adilger Andreas Dilger made changes -
            Resolution Original: Fixed [ 1 ]
            Status Original: Resolved [ 5 ] New: Reopened [ 4 ]
            cfaber Colin Faber made changes -
            Link New: This issue duplicates DDN-3914 [ DDN-3914 ]
            pjones Peter Jones made changes -
            Labels Original: exap

            People

              laisiyao Lai Siyao
              green Oleg Drokin
              Votes:
              1 Vote for this issue
              Watchers:
              14 Start watching this issue

              Dates

                Created:
                Updated: