You can add partitions at runtime but not delete (AFAIK, someone correct me if I'm wrong). The reason it's usually discouraged is that when partitions get added to a topic, the message assignment changes and if you're application depends on some partitioning logic, that will fail.
-- Sharninder On Sat, Jul 26, 2014 at 2:29 AM, Kashyap Mhaisekar <kashya...@gmail.com> wrote: > Great. Thanks all. But there is no easy way to change partitions once the > topic is created right? I run kafka 0.8.2 and its a difficult job to > reassign partitions. > > > On Fri, Jul 25, 2014 at 3:10 PM, Clark Haskins < > chask...@linkedin.com.invalid> wrote: > > > You can have more partitions than machines in the cluster, you cannot > > however have a replication factor that is great than the number of > > machines in the cluster. > > > > You could easily have a topic with 100 partitions on a 3 node cluster. > > > > -Clark > > > > > > Clark Elliott Haskins III > > LinkedIn DDS Site Reliability Engineer > > Kafka, Zookeeper, Samza SRE > > Mobile: 505.385.1484 > > BlueJeans: https://www.bluejeans.com/chaskins > > > > > > chask...@linkedin.com > > https://www.linkedin.com/in/clarkhaskins > > There is no place like 127.0.0.1 > > > > > > > > > > On 7/23/14, 2:14 PM, "Kashyap Mhaisekar" <kashya...@gmail.com> wrote: > > > > >HI, > > >Is the maximum no. of partitions for a topic dependent on the no. of > > >machines in a kafka cluster? > > >For e.g., if I have 3 machines in a cluster, can I have 5 partitions > with > > >a > > >caveat that one machine can host multiple partitions for a given topic? > > > > > >Regards, > > >Kashyap > > > > >
