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  1. Lustre
  2. LU-16572

YAML configuration issues

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Details

    • Bug
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      Two issues with yaml config. One is specific to UDSP. The other is a general issue with parsing malformed yaml.

      1. export --backup with UDSP rules creates yaml that cannot be imported.

      [root@ct7-mds1 ~]# lctl list_nids
      10.73.20.11@tcp1
      10.73.20.12@tcp1
      10.73.20.13@tcp2
      [root@ct7-mds1 ~]# lnetctl udsp add --src tcp1 --priority 0
      [root@ct7-mds1 ~]# lnetctl udsp add --src tcp2 --priority 1
      [root@ct7-mds1 ~]# lnetctl export --backup > /tmp/lnet.conf
      [root@ct7-mds1 ~]# lnetctl lnet unconfigure
      [root@ct7-mds1 ~]# lnetctl lnet configure
      [root@ct7-mds1 ~]# lnetctl import /tmp/lnet.conf
          - udsp:
                errno: -1
                descr: "The combination of src, dst and rte is not supported"
          - udsp:
                errno: -1
                descr: "The combination of src, dst and rte is not supported"
      yaml:
          - helper:
                errno: -1
                descr: "call back for 'udsp' not found"
      [root@ct7-mds1 ~]# cat /tmp/lnet.conf
      ...
      udsp:
          - idx: 0
            src: tcp1
            dst: NA
            rte: NA
            action:
                priority: 0
          - idx: 1
            src: tcp2
            dst: NA
            rte: NA
            action:
                priority: 1
      

      2. If some field is missing in one section but present in another then the yaml parser may find it in second location and apply it to first. For example, this can create malformed UDSP rules (but applies to all yaml parsing, AFAICT):

      # cat /etc/lnet.conf
      # udsp:
          - idx: 0
            src: kfi
            action:
                priority: 0
          - idx: 1
            dst: 867@kfi
            action:
                priority: 0
      # lnetctl import /etc/lnet.conf
      # lnetctl udsp show
      udsp:
          - idx: 0
            src: kfi
            dst: 897@kfi  <<<< Malformed rule
            rte: NA
            action:
                priority: 0
          - idx: 1
            src: NA
            dst: 897@kfi
            rte: NA
            action:
                priority: 0
      

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              hornc Chris Horn
              hornc Chris Horn
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              Dates

                Created:
                Updated: