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https://issues.apache.org/jira/browse/KAFKA-42?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neha Narkhede updated KAFKA-42:
-------------------------------
Attachment: kafka-42-v3.patch
20. ReassignPartitionsCommand:
20.1, 20.2 Sure, that is a good idea
20.3 For this corner case to happen, another instance of the admin command
would have to run at the right time. If that happens, both the admin commands
might see that the path doesn't exist and try to create it. At this point, one
of the admin commands will get an error and it will exit.
20.4 Good catch, that is a bug. Initially, I wrote the entire map of all
partitions using that API. But later, for per-partition sanity checks, changed
it to get invoked for every partition and that probably introduced the bug.
21. They are used in AdminTest as well, but this makes sense.
22, 23. Included these optimizations.
> Support rebalancing the partitions with replication
> ---------------------------------------------------
>
> Key: KAFKA-42
> URL: https://issues.apache.org/jira/browse/KAFKA-42
> Project: Kafka
> Issue Type: Bug
> Components: core
> Reporter: Jun Rao
> Assignee: Neha Narkhede
> Priority: Blocker
> Labels: features
> Fix For: 0.8
>
> Attachments: kafka-42-v1.patch, kafka-42-v2.patch, kafka-42-v3.patch
>
> Original Estimate: 240h
> Remaining Estimate: 240h
>
> As new brokers are added, we need to support moving partition replicas from
> one set of brokers to another, online.
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