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https://issues.apache.org/jira/browse/KAFKA-344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502950#comment-13502950
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Jay Kreps commented on KAFKA-344:
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This is done now, right?
> migration tool from 0.7 to 0.8
> ------------------------------
>
> Key: KAFKA-344
> URL: https://issues.apache.org/jira/browse/KAFKA-344
> Project: Kafka
> Issue Type: Sub-task
> Components: core
> Affects Versions: 0.8
> Reporter: Jun Rao
> Assignee: Yang Ye
> Priority: Blocker
> Labels: tools
> Fix For: 0.8
>
> Attachments: kafka-0.7.0.jar, kafka_07_producer_performance.patch,
> kafka_344_draft.patch, kafka_344_standalone.diff,
> kafka_344_standalone_v2.diff, kafka_344_v1.diff, zkclient-0.1.jar
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Since 0.8 is a non-backward compatible release, we need a migration tool. One
> way to do that is to have a tool that can mirror data from an 0.7 Kafka
> cluster into an 0.8 Kafka cluster. Once the mirror is set up, we can then
> first migrate the consumers to the 0.8 cluster, followed by the producers.
> After that, we can decommission the 0.7 cluster.
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