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  1. Lustre
  2. LU-16697

Lustre should set appropriate BDI_CAP_* and s_iflags for writeback and cgroup wb

Details

    • Bug
    • Resolution: Fixed
    • Minor
    • Lustre 2.16.0
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      Lustre should set appropriate BDI_CAP_* and s_iflags for writeback and cgroup wb

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-16954 mount failed: File exists(cannot create duplicate filename '/devices/virtual/bdi/lustre-ffffxxx')

          • 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-16713 Writeback and commit pages under memory pressure to avoid OOM

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-16680 add lowmem sync feature

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-16696 Lustre memcg oom workaround for unpatched kernels

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

          Activity

            [LU-16697] Lustre should set appropriate BDI_CAP_* and s_iflags for writeback and cgroup wb
            pjones Peter Jones added a comment -

            Landed for 2.16

            pjones Peter Jones added a comment - Landed for 2.16
            gerrit Gerrit Updater added a comment -

            "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50497/
            Subject: LU-16697 llite: Set BDI_CAP_* flags for lustre
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: f5a75ea44db32ac27ada327b4752c3bc611cf9df

            gerrit Gerrit Updater added a comment - "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50497/ Subject: LU-16697 llite: Set BDI_CAP_* flags for lustre Project: fs/lustre-release Branch: master Current Patch Set: Commit: f5a75ea44db32ac27ada327b4752c3bc611cf9df
            adilger Andreas Dilger added a comment -

            Patrick, do you have a reference on previous problems with the kernel writeback limits? I'm wondering if they show tests and/or monitors we could use to usefully test these new patches?

            adilger Andreas Dilger added a comment - Patrick, do you have a reference on previous problems with the kernel writeback limits? I'm wondering if they show tests and/or monitors we could use to usefully test these new patches?
            paf0186 Patrick Farrell added a comment -

            Shaun,

            Check out LU-16680.  This solves the problem of Lustre working well with cgroups and general memory pressure without subjecting us to the kernel writeback limits, which were a huge problem in the past:

            https://review.whamcloud.com/c/fs/lustre-release/+/50460

            paf0186 Patrick Farrell added a comment - Shaun, Check out LU-16680 .  This solves the problem of Lustre working well with cgroups and general memory pressure without subjecting us to the kernel writeback limits, which were a huge problem in the past: https://review.whamcloud.com/c/fs/lustre-release/+/50460
            gerrit Gerrit Updater added a comment -

            "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50497
            Subject: LU-16697 llite: Set BDI_CAP_* flags for lustre
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: 33896b62aa39e271cdcd4fdc4adb84a3849bdca1

            gerrit Gerrit Updater added a comment - "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50497 Subject: LU-16697 llite: Set BDI_CAP_* flags for lustre Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 33896b62aa39e271cdcd4fdc4adb84a3849bdca1

            People

              stancheff Shaun Tancheff
              stancheff Shaun Tancheff
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                Created:
                Updated:
                Resolved: