[HBASE-25895] Implement a Cluster Metrics JSON endpoint - ASF JIRA

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Details

Type: Sub-task
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 2.5.0, 3.0.0-alpha-3
Component/s: None
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Release Note:

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Introduces a REST+JSON endpoint on the master info server port, which is used to render the "Region Visualizer" section of the Master Status page. When enabled, access to this API is gated by authentication only, just like the Master Status page. This API is considered InterfaceAudience.Private, can change or disappear without notice.

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Introduces a REST+JSON endpoint on the master info server port, which is used to render the "Region Visualizer" section of the Master Status page. When enabled, access to this API is gated by authentication only, just like the Master Status page. This API is considered InterfaceAudience.Private, can change or disappear without notice.

Description

In order to build a dynamic visualization functionality, we need access to the underlying dataset. I think we can do a lot by exposing the ClusterMetrics already available via the o.a.h.h.client.Admin interface.