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https://issues.apache.org/jira/browse/KAFKA-347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13707444#comment-13707444
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Sriram Subramanian commented on KAFKA-347:
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1. That would not give you the right result. The start index is for the replica
of the first partition we create. This is to continue from where we left for
that topic.
2. That is on purpose. There is no change. Just if else fix.
3. This is on purpose to prevent any regression for 0.8.
> change number of partitions of a topic online
> ---------------------------------------------
>
> Key: KAFKA-347
> URL: https://issues.apache.org/jira/browse/KAFKA-347
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.8
> Reporter: Jun Rao
> Assignee: Sriram Subramanian
> Labels: features
> Fix For: 0.8.1
>
> Attachments: kafka-347.patch
>
>
> We will need an admin tool to change the number of partitions of a topic
> online.
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