List instances using Searchlight

Registered by Matt Riedemann

To support efficiently listing instances across multiple cells Nova plans to integrate support for using Searchlight. This will be an optional feature but recommended for large deployments with multiple cells since using Searchlight will be perform better than the compute API getting instances across multiple cells and then merge sorting them in Python.

Blueprint information

Status:
Complete
Approver:
Dan Smith
Priority:
Undefined
Drafter:
Matt Riedemann
Direction:
Needs approval
Assignee:
Zhenyu Zheng
Definition:
Obsolete
Series goal:
None
Implementation:
Unknown
Milestone target:
None
Completed by
Matt Riedemann

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/list-instances-using-searchlight,n,z

Addressed by: https://review.openstack.org/441692
    List instances using Searchlight (spec)

Addressed by: https://review.openstack.org/442248
    [POC] Searchlight intergration

Addressed by: https://review.openstack.org/463388
    Clarify wording in Searchlight spec - error conditions

This isn't going to happen for Pike per the summit discussion. The best we can do in Pike if we have time is some proof of concept discovery code and testing, but I'm going to defer this to Queens so we can focus on things that are ready for review in Pike since we're 5 weeks from feature freeze now. -- mriedem 20170622

At the Queens PTG we decided to not go this route for a variety of reasons. We're going to try to efficiently list filtered/sorted instances via the DB APIs across cells instead so I'm closing out this blueprint. -- mriedem 20170919

(?)

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