Thanks for replying Neha. Yes I got the same thing as u written:There should only be one controller at any point of time in a Kafka cluster. If that controller broker is bounced, then the controller moves to another broker. But my doubt is this value will fluctuate always between 0 and 1 ,so it must be a boolean value and its name shouldn't be ActiveControllerCount.
On Tue, Nov 19, 2013 at 1:15 PM, Neha Narkhede <neha.narkh...@gmail.com>wrote: > There should only be one controller at any point of time in a Kafka > cluster. If that controller broker is bounced, then the controller moves to > another broker. In general, you want to alert if the addition of the mbean > values for ActiveControllerCount across all brokers in a cluster != 1. > > Thanks, > Neha > > > On Mon, Nov 18, 2013 at 11:16 PM, Monika Garg <gargmon...@gmail.com> > wrote: > > > Hi, > > > > there is one Mbean in jconsole with name > > "kafka.controller":type="KafkaController",name="ActiveControllerCount", > > > > the Value of this Mbean is always 1 on one broker and 0 on all others > > remaining broker of the 3 nodes kafka cluster.Will it always be like > this? > > > > As per my understanding it will always be 1 on one and only one broker as > > there will be only one active controller in the cluster at any point of > > time. > > > > So it should be "kafka.controller":type="KafkaController",name=" > > *ActiveController*" and it sholud be a boolean value. > > > > Please correct if I am wrong. > > > > -- > > *Moniii* > > > -- *Moniii*
