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  1. Lustre
  2. LU-12098

changelog_deregister appears not to reliably clear all changelog entries

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Minor Minor
    • Lustre 2.13.0, Lustre 2.12.3
    • Lustre 2.10.6
    • Lustre 2.10.6_2.chaos
      zfs 0.7.11-5llnl
      distro toss-release-3.4-4 (RHEL 7.6 based)
      kernel 3.10.0-957.5.1.3chaos.ch6.x86_64
      2 MDTs, we use DNE1
      See github.com/llnl/ for zfs and lustre code corresponding to these tags
    • 3
    • 9223372036854775807

      After lctl changelog_deregister, changelogs were not fully cleared:

      [root@porteri:~]# pdsh -g mds 'lctl get_param "*.*.changelog_users"' | dshbak -c
      ----------------
      eporter81
      ----------------
      mdd.lustre3-MDT0000.changelog_users=current index: 3856956771
      ID    index
      ----------------
      eporter82
      ----------------
      mdd.lustre3-MDT0001.changelog_users=current index: 5663390742
      ID    index
      [root@porteri:~]# pdsh -g mds 'lctl get_param "*.*.changelog_size"' | dshbak -c
      ----------------
      eporter81
      ----------------
      mdd.lustre3-MDT0000.changelog_size=15384080
      ----------------
      eporter82
      ----------------
      mdd.lustre3-MDT0001.changelog_size=25036880872
      

            sebastien Sebastien Buisson
            ofaaland Olaf Faaland
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              Created:
              Updated:
              Resolved: