[Bug 1940697] Re: missing erasure code plugin library libec_isa.so

[Frode Nordahl]

** Also affects: ceph (Ubuntu Impish)
   Importance: High
       Status: Triaged

** Also affects: ceph (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Changed in: ceph (Ubuntu Hirsute)
       Status: New => Triaged

** Changed in: ceph (Ubuntu Hirsute)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1940697

Title:
  missing erasure code plugin library libec_isa.so

Status in OpenStack ceph-mon charm:
  Confirmed
Status in ceph package in Ubuntu:
  Triaged
Status in ceph source package in Hirsute:
  Triaged
Status in ceph source package in Impish:
  Triaged

Bug description:
  After a fresh deployment of ceph-mon on maas/ubuntu-focal (source:
  cloud:focal-wallaby) the required library libec_isa.so for the isa
  erasure code plugin is missing.

  The command

  juju run-action ceph-mon/leader create-erasure-profile --params
  ./create_erasure_profile.yml --verbose --wait

  with this parameters in create_erasure_profile.yml

  name: ectest
  #m
  coding-chunks: 2
  #k
  data-chunks: 4
  device-class: hdd
  failure-domain: host
  plugin: isa

  fails with the error message

  unit-ceph-mon-0:
    UnitId: ceph-mon/0
    id: "14"
    message: 'Create erasure profile failed with message: Command ''[''ceph'', ''--id'',
      ''admin'', ''osd'', ''erasure-code-profile'', ''set'', ''ectest'', ''plugin=isa'',
      ''k=4'', ''m=2'', ''crush-failure-domain=host'', ''crush-device-class=hdd'']''
      returned non-zero exit status 5.'
    results:
      Stderr: |
        Error ENOENT: unknown erasure code profile 'ectest'
        Error EIO: load dlopen(/usr/lib/x86_64-linux-gnu/ceph/erasure-code/libec_isa.so): /usr/lib/x86_64-linux-gnu/ceph/erasure-code/libec_isa.so: cannot open shared object file: No such file or directory
    status: failed
    timing:
      completed: 2021-08-20 16:39:02 +0000 UTC
      enqueued: 2021-08-20 16:38:58 +0000 UTC
      started: 2021-08-20 16:39:00 +0000 UTC

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