When you use the default replication factor of 3 with single node broker the offset and transaction topics will be never created. As a result applications using them will not work (for example a consumer using the offsets topic will not work). Kafka broker it self will keep running. Given how the clustering works it actually doesn't distinguish between running as a single node and running as the "first" node of the cluster - so it will not shutdown with error.
Jakub On Sat, Nov 25, 2017 at 6:44 AM, Debraj Manna <subharaj.ma...@gmail.com> wrote: > Anyone any thoughts? > > If I am not changing this value after upgrade to 1.0 in a single node kafka > broker. It will take the default value of 3 . So what will be the behavior > in this case? > > On Fri, Nov 24, 2017 at 3:57 PM, Debraj Manna <subharaj.ma...@gmail.com> > wrote: > > > Hi > > > > I am migrating from Kafka 0.10 to the latest 1.0 . I did not set any > value > > for these fields in Kafka 0.10. Can some one let me know what is the > > recommended settings for a 3 node broker cluster & for a single node > broker > > cluster for the below internal topic settings - > > > > > > - offsets.topic.replication.factor > > - transaction.state.log.replication.factor > > - transaction.state.log.min.isr > > > > > > Thanks, > > >
