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https://issues.apache.org/jira/browse/KAFKA-1367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654859#comment-14654859
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Ashish K Singh commented on KAFKA-1367:
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[~becket_qin] that is a valid concern. I guess what you are suggesting makes 
sense, controller should wait for a configurable time before sending out Update 
Metadata Request to brokers.

> Broker topic metadata not kept in sync with ZooKeeper
> -----------------------------------------------------
>
>                 Key: KAFKA-1367
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1367
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8.0, 0.8.1
>            Reporter: Ryan Berdeen
>            Assignee: Ashish K Singh
>              Labels: newbie++
>             Fix For: 0.8.3
>
>         Attachments: KAFKA-1367.patch, KAFKA-1367.txt, 
> KAFKA-1367_2015-07-01_17:23:14.patch, KAFKA-1367_2015-07-06_22:04:06.patch
>
>
> When a broker is restarted, the topic metadata responses from the brokers 
> will be incorrect (different from ZooKeeper) until a preferred replica leader 
> election.
> In the metadata, it looks like leaders are correctly removed from the ISR 
> when a broker disappears, but followers are not. Then, when a broker 
> reappears, the ISR is never updated.
> I used a variation of the Vagrant setup created by Joe Stein to reproduce 
> this with latest from the 0.8.1 branch: 
> https://github.com/also/kafka/commit/dba36a503a5e22ea039df0f9852560b4fb1e067c



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