Ironic Shards

Registered by John Garbutt

Use Ironic Shards to scale out nova-compute processes talking to ironic, instead of the hash ring we used to use.

Blueprint information

Status:
Started
Approver:
Sylvain Bauza
Priority:
Low
Drafter:
John Garbutt
Direction:
Approved
Assignee:
John Garbutt
Definition:
Approved
Series goal:
Accepted for bobcat
Implementation:
Blocked
Milestone target:
milestone icon bobcat-3
Started by
John Garbutt

Related branches

Sprints

Whiteboard

[20230116 bauzas] Spec approved for 2023.1 cycle https://review.opendev.org/c/openstack/nova-specs/+/862833/

[20230307 bauzas] Deferred as implementation not merged in 2023.1

Addressed by: https://review.opendev.org/c/openstack/nova/+/883346
    WIP: Deprecate ironic.peer_list

[20230512 bauzas] Spec got approved for Bobcat https://review.opendev.org/c/openstack/nova-specs/+/881643

[20230628 johnthetubaguy]
Code is all up for review now:
https://review.opendev.org/q/topic:ironic-shards

Gerrit topic: https://review.opendev.org/#/q/topic:ironic-shards

Addressed by: https://review.opendev.org/c/openstack/nova/+/886980
    Limit nodes by ironic shard key

Addressed by: https://review.opendev.org/c/openstack/nova/+/886989
    Add nova-manage ironic-compute-node-move

Addressed by: https://review.opendev.org/c/openstack/nova/+/887151
    Make compute node rebalance safter

Addressed by: https://review.opendev.org/c/openstack/nova/+/894944
    Revert "Make compute node rebalance safter"

Addressed by: https://review.opendev.org/c/openstack/nova/+/894945
    Revert "Add nova-manage ironic-compute-node-move"

Addressed by: https://review.opendev.org/c/openstack/nova/+/894946
    Revert "Limit nodes by ironic shard key"

Addressed by: https://review.opendev.org/c/openstack/nova/+/894947
    Revert "Deprecate ironic.peer_list"

[20231003 bauzas] The implementation is blocked as we needed to revert the series (without reverting the deprecation for peer_list tho). We will need to accept again the blueprint/spec for Caracal then.

(?)

Work Items

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