Hi Sameer, Yes, the upgrade should be seamless. Can you please share the log entries with the errors?
Ismael On Wed, Jul 26, 2017 at 1:35 PM, Sameer Kumar <sam.kum.w...@gmail.com> wrote: > Hi , > > I wanted to understand the process for production upgrade of Kafka. As > documented in the https://kafka.apache.org/documentation/#upgrade, it > should be seamless. > > I had a 3 node cluster(single topic, partitions=60, replication factor =2 > )on which i was trying the same. > As suggested, I first stopped first broker, did the property > changes(inter.broker.protocol.version , log.message.format.version to > 10.2.1) with 11 downloaded package and restarted it. It was rebuilding > index and it took quite a bit of time. > > Thereafter, when I started another node with same steps, it failed. The > partitions went offline. It seemed to me now the requirement for 2 Kafka10 > nodes was not met, perhaps it wasnt able to recognize newly updated nodes. > > Regards, > -Sameer. >
