[MESOS-3841] Master HTTP API support to get the leader

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: HTTP API
• Assignee: Jian Qiu
• Reporter: Cosmin Lehene
• Created: 06/Nov/15 17:47
• Updated: 19/Jul/16 00:02
• Resolved: 01/May/16 04:27

Description

There's currently no good way to query the current master ensemble leader.

Some workarounds to get the leader (and parse it from leader@ip) from /state.json or to grep it from master/redirect.

The scheduler API does an HTTP redirect, but that requires an HTTP POST coming from a framework as well

POST /api/v1/scheduler HTTP/1.1

There should be a lightweight API call to get the current master.
This could be part of a more granular representation (REST) of the current state.json.

Issue Links

• is duplicated by: MESOS-3707 Add /master/isleader endpoint to check if the master is leader or not
• is related to: MESOS-1865 Redirect to the leader master when current master is not a leader
• relates to: MESOS-1865 Redirect to the leader master when current master is not a leader