[MESOS-813] Add command to get available resources in Cluster.

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: cli
• Labels: cli
• Assignee: Unassigned
• Reporter: Bernardo Gomez Palacio
• Created: 15/Nov/13 22:55
• Updated: 04/Apr/19 12:08

Description

Rationale:
As a CLI User I should be able to know how much memory/resources the Cluster has available before activating a framework. The Use Case arises when several CLI Users are interacting with Shark while the Cluster is already running additional frameworks. Ideally a CLI Users knows the available memory such that they can set a sensitive SPARK_MEM value. This will help reduce the number of Shark Queries hanging waiting for resources that they not necessarily require.

Implementation suggestion.
Will be simple to follow the mesos-ps script example to read the master/stats.json endpoint to present such metrics. The script could be mesos-stats and receive the specific metric you are interested in, should default to all.

Potential enhancement could be an argument that loops the command such that we have a continuos feed of the stats in the cli.

Issue Links

• is related to: MESOS-5676 A full redesign of the Mesos CLI