[AMBARI-19858] Add "live_hosts" metric in AMS for apps

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.5.0
• Component/s: ambari-metrics
• Assignee: Aravindan Vijayan
• Reporter: Siddharth Wagle
• Created: 03/Feb/17 02:59
• Updated: 07/Feb/17 19:18
• Resolved: 07/Feb/17 18:05

Description

live_hosts => # count of total hosts reporting metrics
live_hosts & appId = <appId> => # count of hosts hosting this appId

Where appId =

{ namenode, datanode, hbase ... etc }

Issue Links

• links to: Review board