Mahadev konar updated ZOOKEEPER-522:

    Fix Version/s:     (was: 3.3.0)

moving this to 3.4

> zookeeper client should throttle if its not able to connect to any of the 
> servers.
> ----------------------------------------------------------------------------------
>                 Key: ZOOKEEPER-522
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-522
>             Project: Zookeeper
>          Issue Type: Improvement
>    Affects Versions: 3.2.0
>            Reporter: Mahadev konar
>             Fix For: 3.4.0
> Currently the zookeeper client library keeps connecting to servers if all of 
> them are unreachable. It will go through the list time and again and try to 
> connect. Sometimes, this might cause problems like too many clients retrying 
> connect to servers (and there might be something wrong/delay with servers) 
> wherein the clients will give up and will try reconnecting to other servers. 
> This causes a huge churn in client connections sometimes leading to the 
> zookeeper server running out of file handles.

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