It's just that the mirroring logic depends on ZK to be available most of the time.
Jun On Wed, Jan 11, 2012 at 2:35 PM, Christian Carollo <ccaro...@gmail.com>wrote: > I see. But if I used that configuration and then did the mirroring you > suggested would that be enough, in your opinion, to be considered highly > reliable? > > Christian > > > On Jan 11, 2012, at 2:32 PM, Jun Rao wrote: > > >> For example, can I have one ZK instance and one broker on one machine > and > > that is enough to define a ZK cluster and a Kafka Cluster? > > > > Yes, although you don't get the reliability of ZK now. > > > > Jun > > > > > > On Wed, Jan 11, 2012 at 2:06 PM, Christian Carollo <ccaro...@gmail.com > >wrote: > > > >> Jun, > >> > >> I don't think I ask my question the right way. > >> > >> What I am trying to understand is what are the minimum constituent parts > >> of a kafka cluster? > >> > >> Based on your last email, I am now wondering what are the minimum > >> constituent parts of a ZK cluster as well as a Kafka cluster? > >> > >> For example, can I have one ZK instance and one broker on one machine > and > >> that is enough to define a ZK cluster and a Kafka Cluster? > >> > >> Thanks, > >> Christian > >> > >> > >> On Jan 11, 2012, at 1:50 PM, Jun Rao <jun...@gmail.com> wrote: > >> > >>> Chrsitan, > >>> > >>> A Kafka cluster containers a ZK cluster and a list of brokers. When a > >>> consumer subscribes to a topic in a kafka cluster, it consumes data > >> stored > >>> in all brokers in that cluster. > >>> > >>> Thanks, > >>> > >>> Jun > >>> > >>> On Tue, Jan 10, 2012 at 11:28 PM, Christian Carollo < > ccaro...@gmail.com > >>> wrote: > >>> > >>>> Thank you Jun that is quite helpful. I have a question about Kafka > >>>> Clusters. What are the minimum number and types of services that must > >> be > >>>> running to make up a Kafka Cluster? > >>>> > >>>> I ask this because the diagrams (in the Kafka Mirroring document) > allude > >>>> to a multiple broker environment, however, since each broker does not > >>>> appear to provide redundancy (as of today) to any of the other brokers > >> in a > >>>> given zookeeper service, it seems like a Kafka Cluster is nothing more > >> than > >>>> a grouping of a single zookeeper instance with a single Kafka broker, > is > >>>> this the correct understanding? > >>>> > >>>> Thanks, > >>>> Christian > >>>> > >>>> On Jan 10, 2012, at 8:47 AM, Jun Rao wrote: > >>>> > >>>>> With 0.7, you can set up inter-cluster replication ( > >>>>> https://cwiki.apache.org/confluence/display/KAFKA/Kafka+mirroring). > >>>>> > >>>>> For the future 0.8 release, we are working on intra-cluster > replication > >>>>> support and details can be found at > >>>>> https://issues.apache.org/jira/browse/KAFKA-50 > >>>>> > >>>>> Thanks, > >>>>> > >>>>> Jun > >>>>> > >>>>> On Mon, Jan 9, 2012 at 9:52 PM, Christian Carollo < > ccaro...@gmail.com > >>>>> wrote: > >>>>> > >>>>>> I am looking to implement Kafka in a production environment, > however, > >> I > >>>>>> haven't found in documentation or examples that > >>>>>> discuss how to build a redundant implementation. Is there any > >>>>>> documentation out their (blogs, articles, etc.) that describes > >>>>>> how we can implement such a system with Kafka 0.6 or 0.7. > >>>>>> > >>>>>> Also, is there a timeframe the community is shooting for, to release > >>>> 0.8 w/ > >>>>>> replication? > >>>>>> > >>>>>> Thanks > >>>>>> Christian > >>>>>> > >>>> > >>>> > >> > >
