Node replacement does not require anything special - i.e., as long as it has the same broker id, just bringing it back into the cluster would suffice, and it should catch up on partitions that are assigned to it. Not sure what you mean by "increase a replica" - or you mean increase the number of replicas for a partition. That will require an admin tool - (see KAFKA-347).
Thanks, Joel On Fri, Nov 30, 2012 at 11:22 AM, S Ahmed <sahmed1...@gmail.com> wrote: > Hello, > > I am watching the video of your meetup, where Jun is going over the new .8 > replica feature. > > Since the replica's for a master broker are in zookeeper, when there is a > hardware crash it will somehow (?) notice it is down and then ignore that > node. When it comes back up, it will first get up to speed and then become > an active replica. > > If we replace the node, or increase a replica, do we have to restart all > brockers or simply update zooker? >