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https://issues.apache.org/jira/browse/BOOKKEEPER-116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sijie Guo resolved BOOKKEEPER-116.
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    Resolution: Duplicate
    
> Bookkeeper server cannot re-connect to the zookeeper until zookeeper 
> recognizes
> -------------------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-116
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-116
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: hedwig-client
>         Environment: CentOS 5.5 for all servers and workstations (however 
> zookeeper, bookies, and hubs are all built in Ubuntu 11);
> OpenJDK Runtime Environment (IcedTea6 1.9.10) (rhel-1.23.1.9.10.el5_7-i386);
> OpenJDK Client VM (build 19.0-b09, mixed mode);
>            Reporter: Daniel Kim
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> When a bookie is disconnected from the zk server, zk does not know about this 
> immediately. As a result, if I try to restart the bookie, meanwhile, it will 
> not be able to. Zk server believes that the server trying to reconnect 
> already has a connection. Instead of throwing KeeperException for existing 
> node, zk server should wait until the pre-existing connection times out and 
> tries to reconnect. Or zk server should ignore the old metadata about this 
> node, and re-connect immediately (but I guess this solution may cause 
> security issues).

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