API v1.1 - Provide more detailed info with /health

Registered by Feilong Wang on 2014-01-07

Based on the latest discussion, /health should really be called /ping which is for the load balancer. We're going to provide more info with the new /health api.

Some things to report:

* Functional availability (perform create queue, post, list, claim, delete, delete queue)
* Message stats (how many total queues, messages/queue or just total messages, average number of messages/queue, top 10 project by queue size, perhaps by other metrics, everything broken out by storage pool)
* Average request latency (moving load average over 3 different periods - 1 minute, 10 minutes, 30 minutes - TBD)
* Total number of requests per operation - moving average across 3 periods

Blueprint information

Status:
Complete
Approver:
Kurt Griffiths
Priority:
High
Drafter:
Feilong Wang
Direction:
Approved
Assignee:
Feilong Wang
Definition:
Approved
Series goal:
Accepted for juno
Implementation:
Implemented
Milestone target:
milestone icon 2014.2
Started by
Feilong Wang on 2014-02-21
Completed by
Feilong Wang on 2014-08-24

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/detailed-health,n,z

Addressed by: https://review.openstack.org/76555
    feat(v1.1): Implement new /health endpoint for v1.1

Added some ideas for metrics (kgriffs)

Moved to j-3 (kgriffs)

(?)

Work Items

Dependency tree

* Blueprints in grey have been implemented.

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