Hi Shlomi, By just use "kafka-topics.sh --zookeeper localhost:2181 --alter --topic test_topic --partitions 8" the controller will auto assign replicas to the newly added partitions, but will not touch the existing ones.
Guozhang On Mon, Nov 17, 2014 at 11:13 PM, Shlomi Hazan <shl...@viber.com> wrote: > Hi Guozhang, > Sorry for being too brief but the question referred to adding partitions > with the topic tool (without specifying json file). > I was not aware of the json file option at all and so my question is > dealing with the case the partitions are added like: > kafka-topics.sh --zookeeper localhost:2181 --alter --topic test_topic > --partitions 8 > Will then existing partitions be subject to leadership change? > 10x > Shlomi > > On Mon, Nov 17, 2014 at 7:04 PM, Guozhang Wang <wangg...@gmail.com> wrote: > > > Hi Shlomi, > > > > As long as your json file indicating the partition addition operation > does > > not touch the existing partitions you should be fine. > > > > Guozhang > > > > On Mon, Nov 17, 2014 at 1:08 AM, Shlomi Hazan <shl...@viber.com> wrote: > > > > > Hi > > > I want to add partitions to a running topic, > > > and since I use the python producer I will eventually have to restart > > > producers to reflect the change. > > > the question is if leadership will change for the existing partitions > > too, > > > forcing me to immediately restart the producers. > > > 10x, > > > Shlomi > > > > > > > > > > > -- > > -- Guozhang > > > -- -- Guozhang
