My name is Dana, from Ethoca Inc. , Canada. I am looking through the kafka upgrade guide linked below, and am a bit confused on the bounces, it says:
if upgrading from 2.3 or below, you will need to do two rolling bounces, where during the first rolling bounce phase you set the config
upgrade.from="older version"(possible values are
"0.10.0" - "2.3") and during the second you remove it.
Do we have to keep the applications set to
upgrade.from="2.3" until all the applications of our kafka cluster are upgraded to 2.4+, or is it in the context of the same application, i.e. the instances of the same application getting to 2.4+ and then good to go with the second bounce? Could you please clarify this part?