There is some discussion on KAFKA-1070 <https://issues.apache.org/jira/browse/KAFKA-1070> around the design choice and compatibility. The value 1000 was thrown out as a quick example but it was never discussed beyond that. The discussion also sites a few cases where a value of 1000 would cause issue.
On Fri, Dec 18, 2015 at 10:13 AM, Ismael Juma <ism...@juma.me.uk> wrote: > Hi Grant, > > On Fri, Dec 18, 2015 at 4:07 PM, Grant Henke <ghe...@cloudera.com> wrote: > > > I have seen a few issues utilizing the default value of > > reserved.broker.max.id=1000 in existing clusters during upgrades. > > > 1000 seems a bit low to me too and a larger number seems safer. It would be > good to understand the reasoning for the original choice before changing it > though. > > Best, > Ismael > -- Grant Henke Software Engineer | Cloudera gr...@cloudera.com | twitter.com/gchenke | linkedin.com/in/granthenke
