Hello again Cosmin :) I think this is because offsets are kept in a special _consumer_offsets topic, as opposed to ZK previously. Take a look here: http://search-hadoop.com/m/uyzND1T1i3BNkRFM1&subj=Re+Kafka+0+8+2+1+how+to+read+from+__consumer_offsets+topic+
Marko Bonaći Monitoring | Alerting | Anomaly Detection | Centralized Log Management Solr & Elasticsearch Support Sematext <http://sematext.com/> | Contact <http://sematext.com/about/contact.html> On Fri, Jan 8, 2016 at 4:07 PM, Cosmin Marginean <cosmargin...@gmail.com> wrote: > Hi, > > Is there a reliable way to determine the number of consumers for a topic > (or at least the number of consumer groups). > I’m using Kafka 0.9.0.0 and both the ones below return empty sets > > zkUtils.getAllConsumerGroupsForTopic(topic); > > OR > > zkUtils.getConsumerGroups(); > > Thanks in advance > Cos > >
