Thanks Sven, I will followup and ensure that the document is tightened up. Apurva
On Mon, Dec 12, 2016 at 4:57 AM, Sven Ludwig <s_lud...@gmx.de> wrote: > Hi, > > in JMX each Kafka broker has a value 1 or 0 for ActiveControllerCount. As > I understood from this thread, the sum of these values across the cluster > should never be something other than 1. The documentation at > http://docs.confluent.io/3.1.0/kafka/monitoring.html should be improved > to make that clear. Currently it is misleading: > > kafka.controller:type=KafkaController,name=ActiveControllerCount > Number of active controllers in the cluster. Alert if value is anything > other than 1. > > Suggested: > > kafka.controller:type=KafkaController,name=ActiveControllerCount > Number of active controllers on a broker. Alert if the aggregated sum > across all brokers in the cluster is anything other than 1, because in a > cluster there should only be one broker with an active controller (cluster > singleton). > > Kind Regards, > Sven >
