[SLIDER-665] Allow extensibility of the Slider AM Web UI to provide application specific end points

• Type: Task
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: Slider 0.60
• Component/s: appmaster, Web & REST
• Assignee: Unassigned
• Reporter: Sumit Mohanty
• Created: 20/Nov/14 01:53
• Updated: 05/Dec/14 00:59

Description

Slider AppMaster UI provides a REST end point for various metadata related to the application and general purpose application status. Applications can also explicitly export config and URLs (any data for that matter) and that is also available through the REST end point.

What is not possible is for the application to report back custom data sets at regular intervals and have it available through the AM REST endpoint. The advantage of such a support would be for applications that do not need a comprehensive web service and can extend the AppMaster REST endpoint to provide application specific data. Its worth investigating if the REST API should be readonly or it is also expected to have support for PUT and POST.

Such feature will mean:

• Allow agents to send custom stats to the AM (arbitrary JSON structure)
• Make per component instance JSON stats available through the Slider AM Web Service

Issue Links

• depends upon: YARN-2084 YARN to support REST APIs in AMs
• relates to: SLIDER-703 Slider extensibility