If you have a partitioner that always return 0, produce requests will always be routed to 1 broker. However, if that broker goes down, the requests will be routed to another broker. This is because the producer only route requests to live partitions.
Jun On Wed, May 9, 2012 at 5:57 PM, xiaoyu wang <xiaoyu.w...@gmail.com> wrote: > OK. I have the answer now. when I connect to brokers through zookeeper, the > record may go to any broker and the partitioner is for partition on the > broker. > > On Wed, May 9, 2012 at 5:48 PM, xiaoyu wang <xiaoyu.w...@gmail.com> wrote: > > > Thanks Jun. > > > > I think my question is if I have a program which produces a topic with a > > partitioner that always returns 0, does all the messages go the same > > broker? If so, what happens if I restart the program, does the messages > > still go the same broker? Note that all the connections are through > > zookeeper. > > > > > > Thanks, > > > > > > > > On Tue, May 8, 2012 at 5:37 PM, Jun Rao <jun...@gmail.com> wrote: > > > >> Xiaoyu, > >> > >> A simpler way to do that is to send all produce requests to 1 broker and > >> configure that broker to have 1 partition per topic. > >> > >> Jun > >> > >> On Tue, May 8, 2012 at 12:41 PM, xiaoyu wang <xiaoyu.w...@gmail.com> > >> wrote: > >> > >> > Hello, > >> > > >> > I want to keep the order of record in my topic so I created the > producer > >> > with a partitioner that always returns 0. I have the following > questions > >> > > >> > > >> > - will my topic be stored in 1 broker only? > >> > - If so, which broker does my topic go to? > >> > - what happens if I change the partitioner later to e.g. random > >> > partitoner? > >> > > >> > > >> > Thanks, > >> > > >> > -Xiaoyu > >> > > >> > > > > >
