That command will change how many partitions the topic has. What you are looking for I think is https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools#Replicationtools-6.ReassignPartitionsTool which allows you to change what partitions are running on which replicas and which replicas are the preferred leader... some more documentation on that https://kafka.apache.org/documentation.html#basic_ops_cluster_expansion (that entire section https://kafka.apache.org/documentation.html#basic_ops has the type of information are you are looking for I think)
/******************************************* Joe Stein Founder, Principal Consultant Big Data Open Source Security LLC http://www.stealth.ly Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop> ********************************************/ On Fri, Sep 12, 2014 at 11:33 AM, István <lecc...@gmail.com> wrote: > Hi all, > > My understanding is that with 0.8.1.x you can manually change the number of > partitions on the broker, and this change is going to be picked up by the > producers and consumers (high level). > > kafka-topics.sh --alter --zookeeper zk.net:2181/stream --topic test > --partitions 3 > > Is that the case? > > Is there a way to adjust the number of partitions based on the load? This > might not be the best way of scaling up and down (auto-scaling) Kafka, so > if there is a better way I would like to know how. > > Thank you in advance, > Istvan > > > -- > the sun shines for all >
