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  1. Lustre
  2. LU-12530

udev add/change rule loads zfs module on clients

Details

    • Bug
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0, Lustre 2.12.4
    • Lustre 2.10.5, Lustre 2.12.2
    • None
    • 3
    • 9223372036854775807

    Description

      Lustre loads the zfs module whenever a block device is added or changed, if Lustre was built against zfs. It unintentionally does this on clients as well as servers.

      Commit 0d11a314787bc795797a016262e9bcfe86e2193e for LU-11563 added a udev rule,
      lustre/conf/99-lustre-server.rules

      When a block device is added or changed:
      udev -> l_tunedisk
      l_tunedisk -> mount_utils.c:osd_init()
      osd_init() > backfs_ops[]>init() AKA zfs_init()
      zfs_init() -> "/sbin/modprobe -q zfs"

      This occurs if the Lustre rpms installed are a full build of Lustre, instead of just a client build.

      Attachments

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-10599 Possible for ID_FS_TYPE to be lustre / ldiskfs?

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

          Bug - A problem which impairs or prevents the functions of the product. LU-9551 I/O errors when lustre uses multipath devices

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-11736 Do not apply bulk IO tuning on MDT or MGT devices

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

          Activity

            [LU-12530] udev add/change rule loads zfs module on clients
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-11736 [ LU-11736 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-9551 [ LU-9551 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-20 [ JFC-20 ]
            pjones Peter Jones made changes -
            Labels Original: LTS12
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.12.4 [ 14690 ]
            gerrit Gerrit Updater added a comment -

            Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/36776/
            Subject: LU-12530 utils: narrow l_tunedisk udev rule
            Project: fs/lustre-release
            Branch: b2_12
            Current Patch Set:
            Commit: e365cf2b001af7ca0883d293b7c148bcaa8e1c61

            gerrit Gerrit Updater added a comment - Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/36776/ Subject: LU-12530 utils: narrow l_tunedisk udev rule Project: fs/lustre-release Branch: b2_12 Current Patch Set: Commit: e365cf2b001af7ca0883d293b7c148bcaa8e1c61
            gerrit Gerrit Updater added a comment -

            Minh Diep (mdiep@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/36776
            Subject: LU-12530 utils: narrow l_tunedisk udev rule
            Project: fs/lustre-release
            Branch: b2_12
            Current Patch Set: 1
            Commit: f5f3f9388aa9fa2c8eb7f2e83b3eb1912afea1fd

            gerrit Gerrit Updater added a comment - Minh Diep (mdiep@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/36776 Subject: LU-12530 utils: narrow l_tunedisk udev rule Project: fs/lustre-release Branch: b2_12 Current Patch Set: 1 Commit: f5f3f9388aa9fa2c8eb7f2e83b3eb1912afea1fd
            ofaaland Olaf Faaland made changes -
            Summary Original: udev rule add/change rule loads zfs module on clients New: udev add/change rule loads zfs module on clients
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.14.0 [ 14490 ]
            Resolution New: Fixed [ 1 ]
            Status Original: In Progress [ 3 ] New: Resolved [ 5 ]
            pjones Peter Jones added a comment -

            Landed for 2.14

            pjones Peter Jones added a comment - Landed for 2.14

            People

              utopiabound Nathaniel Clark
              ofaaland Olaf Faaland
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              Dates

                Created:
                Updated:
                Resolved: