[jira] [Commented] (KAFKA-1888) Add a "rolling upgrade" system test

["Abhishek Nigam (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-1888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14355921#comment-14355921 ] 

Abhishek Nigam commented on KAFKA-1888:
---------------------------------------

Hi Gwen,
I am not sure why the link is not showing up. Here you go:
https://reviews.apache.org/r/30809/

> 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: Abhishek Nigam
>             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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