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https://issues.apache.org/jira/browse/ZOOKEEPER-87?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12616435#action_12616435
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Flavio Paiva Junqueira commented on ZOOKEEPER-87:
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Mahadev, I was thinking that we we could set a maximum capacity to 
queuedPackets on FollowerHandler, and check the remaining capacity on 
FollowerHandler.queuePacket() before accepting a new packet. We could then 
invoke FollowerHandler.shutdown() in the case we reach the capacity. What do 
you think? If you think this is a good idea, I can create a patch.



> Follower does not shut itself down if its too far behind the leader.
> --------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-87
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-87
>             Project: Zookeeper
>          Issue Type: Bug
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>            Priority: Critical
>             Fix For: 3.0.0
>
>
> Currently, the follower if lagging behind keeps sending pings to the leader 
> it will stay alive and will keep getting further and further behind the 
> leader. The follower should shut itself down if it is not able to keep up to 
> the leader within some limit so that gurantee of updates can be made to the 
> clients connected to different servers.

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