There should probably be a wiki page started for this so we have the details in one place. The same question was asked on Freenode IRC a few minutes ago. :)
A summary of the migration procedure is: 1) Upgrade your brokers and set dual.commit.enabled=false and offsets.storage=zookeeper (Commit offsets to Zookeeper Only). 2) Set dual.commit.enabled=true and offsets.storage=kafka and restart (Commit offsets to Zookeeper and Kafka). 3) Set dual.commit.enabled=false and offsets.storage=kafka and restart (Commit offsets to Kafka only). -Jon On Feb 5, 2015, at 9:03 AM, Jason Rosenberg <j...@squareup.com> wrote: > Hi, > > For 0.8.2, one of the features listed is: > - Kafka-based offset storage. > > Is there documentation on this (I've heard discussion of it of course)? > > Also, is it something that will be used by existing consumers when they > migrate up to 0.8.2? What is the migration process? > > Thanks, > > Jason
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