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https://issues.apache.org/jira/browse/KAFKA-1888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14288694#comment-14288694
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Joe Stein commented on KAFKA-1888:
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I agree this is something that we need. I don't know if the current system
tests are the right vehicle for the effort. The system tests haven't been able
to help compatibility with clients or tooling. We started on some spark jobs
https://github.com/stealthly/gauntlet which I think we can make work for this
type of test too. If this is an approach that folks might be interested in the
core project I could write up a KIP.
> Add a "rolling upgrade" system test
> -----------------------------------
>
> Key: KAFKA-1888
> URL: https://issues.apache.org/jira/browse/KAFKA-1888
> Project: Kafka
> Issue Type: Improvement
> Components: system tests
> Reporter: Gwen Shapira
> Assignee: Gwen Shapira
> Fix For: 0.9.0
>
>
> To help test upgrades and compatibility between versions, it will be cool to
> add a rolling-upgrade test to system tests:
> Given two versions (just a path to the jars?), check that you can do a
> rolling upgrade of the brokers from one version to another (using clients
> from the old version) without losing data.
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