Not adding. Taking some of the partitions from one kafka server and spreading them to another.
On Mon, Nov 23, 2015 at 5:40 PM, Gwen Shapira <g...@confluent.io> wrote: > By re-partition you mean adding partitions to an existing topics? > > There are two things to note in that case: > 1. It is "hitless" because all it does is create new partitions where > future records can go, it does not actually move data around. > 2. You could be "hit" if your consumer code assumes that all data for a > specific key will be in the same partition. Because all future keys may get > assigned to different partitions than what they had before adding > partitions. > > Hope this helps. > > Gwen > > On Mon, Nov 23, 2015 at 9:38 AM, Dillian Murphey <crackshotm...@gmail.com> > wrote: > > > Can I do this on a production system and not have downtime? I'm using > > kafkamanager to make this easier, but it's just running the re-partition > > task. > > >
