Hi Tony, Check your docker version, IIRC v20.10 removed the kernel memory option, so you may need to downgrade docker on the new nodes. Alternatively you could update kolla-ansible to a newer version where this check isn't used, we came across this when upgrading to wallaby and past it. Cheers Michael On Wed, Aug 30, 2023 at 5:54 AM Karera Tony <tonykarera@gmail.com> wrote:

Hello Team,

I am running openstack wallaby deployed using kolla-ansible and I am trying to add two compute node but I am getting this error.

failed: [compute3] (item={'key': 'cron', 'value': {'container_name': 'cron', 'group': 'cron', 'enabled': True, 'image': 'kolla/ubuntu-source-cron:wallaby', 'environment': {'DUMMY_ENVIRONMENT': 'kolla_useless_env'}, 'volumes': ['/etc/kolla/cron/:/var/lib/kolla/config_files/:ro', '/etc/localtime:/etc/localtime:ro', '/etc/timezone:/etc/timezone:ro', 'kolla_logs:/var/log/kolla/'], 'dimensions': {}}}) => {"ansible_loop_var": "item", "changed": true, "item": {"key": "cron", "value": {"container_name": "cron", "dimensions": {}, "enabled": true, "environment": {"DUMMY_ENVIRONMENT": "kolla_useless_env"}, "group": "cron", "image": "kolla/ubuntu-source-cron:wallaby", "volumes": ["/etc/kolla/cron/:/var/lib/kolla/config_files/:ro", "/etc/localtime:/etc/localtime:ro", "/etc/timezone:/etc/timezone:ro", "kolla_logs:/var/log/kolla/"]}}, "msg": "'Traceback (most recent call last):\\n File \"/tmp/ansible_kolla_docker_payload_e49mzp45/ansible_kolla_docker_payload.zip/ansible/modules/kolla_docker.py\", line 1241, in main\\n File \"/tmp/ansible_kolla_docker_payload_e49mzp45/ansible_kolla_docker_payload.zip/ansible/modules/kolla_docker.py\", line 355, in compare_container\\n File \"/tmp/ansible_kolla_docker_payload_e49mzp45/ansible_kolla_docker_payload.zip/ansible/modules/kolla_docker.py\", line 376, in check_container_differs\\n File \"/tmp/ansible_kolla_docker_payload_e49mzp45/ansible_kolla_docker_payload.zip/ansible/modules/kolla_docker.py\", line 571, in compare_dimensions\\nKeyError: \\'KernelMemory\\'\\n'"}

Please advise Tony Regards

Tony Karera