The active master has a flag set in  /metrics/snapshot  :
"master/elected" which is 1 for the active
master and 0 otherwise, so it's easy enough to only load the metrics
from the active master.

(I use the collectd plugin and push data rather than poll, but the
same principle should apply).

On 7 July 2015 at 14:02, Donald Laidlaw <donlaid...@me.com> wrote:
> Has anyone ever developed Java code to detect the mesos masters and leader, 
> given a zookeeper connection?
>
> The reason I ask is because I would like to monitor mesos to report various 
> metrics reported by the master. This requires detecting and tracking the 
> leading master to query its /metrics/snapshot REST endpoint.
>
> Thanks,
> -Don

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