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https://issues.apache.org/jira/browse/KAFKA-6326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16283053#comment-16283053
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HongLiang edited comment on KAFKA-6326 at 12/8/17 4:51 AM:
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[~huxi_2b]  zookeeper.session.timeout.ms is 120 sec. but the zk session timeout 
not problem in this case.
the problem is broker has down. the controller still send broker .wait 30 sec. 
I think controller not wait. because controller know the broker has down.


was (Author: hongliang):
[~huxi_2b]  zookeeper.session.timeout.ms is 120 sec. but the zk session timeout 
not problem in this case.
the problem is broker has down(zookeeper has know in session.timeout). the 
controller still send broker .wait 30 sec. I think controller not wait. because 
controller know the broker has down.

> when broker is unavailable(such as broker's machine is down), controller will 
> wait 30 sec timeout 
> --------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-6326
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6326
>             Project: Kafka
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 1.0.0
>            Reporter: HongLiang
>         Attachments: _f7d1d2b4-39ae-4e02-8519-99bcba849668.png, 
> _f7d1d2b4-39ae-4e02-8519-99bcba849668.png, fast-recver-shutdownbroker.diff
>
>
> when broker is unavailable(such as broker's machine is down), controller will 
> wait 30 sec timeout by dedault. it seems to be that the timeout waiting is 
> not necessary. It will be increase the MTTR of dead broker .



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