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From Milind Vaidya <kava...@gmail.com>
Subject Is rollback supported while upgrade ?
Date Thu, 04 May 2017 19:23:03 GMT
Upgrading from kafka_2.9.2-0.8.1.1 to kafka_2.11-0.10.0.0


The new version kafka will look at the same location for log files as older
one is what I am assuming.

As per documentation following properties will be set in the new broker

inter.broker.protocol.version=0.8.1.1
log.message.format.version=0.8.1.1

In case if something goes wrong, is it possible to stop new broker and
start old ones again ?

Any potential risks involved in this ? or it is not supported at all ?

Any other suggestions to achieve this by somebody who has already done it ?

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