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https://issues.apache.org/jira/browse/KAFKA-335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13294758#comment-13294758
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Jun Rao commented on KAFKA-335:
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A few more comments for v5 patch.
41. KafkaController: There are a couple of corner cases.
41.1 registerSessionExpirationListener() need to be called even if the
controller is not active.
41.2 if a broker can't become the controller, it needs to call
registerControllerExistListener() to register the existence watcher.
42. ControllerChannelManager: startup() should use broker, not allBrokers.
Also, allBrokers shouldn't be val.
> Implement an embedded controller
> --------------------------------
>
> Key: KAFKA-335
> URL: https://issues.apache.org/jira/browse/KAFKA-335
> Project: Kafka
> Issue Type: Sub-task
> Components: core
> Affects Versions: 0.8
> Reporter: Jun Rao
> Assignee: Yang Ye
> Fix For: 0.8
>
> Attachments: kafka_controller_v1.patch, kafka_controller_v2.patch,
> kafka_controller_v3.patch, kafka_controller_v4.patch,
> kafka_controller_v4.patch, kafka_controller_v5.patch
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> This ticket will implement a controller as described in
> https://cwiki.apache.org/confluence/display/KAFKA/kafka+Detailed+Replication+Design+V3
> This includes creating the controller path, setting up necessary watchers
> (e.g, Broker path and TopicPath), and failover the controller.
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