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https://issues.apache.org/jira/browse/HBASE-25903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17518182#comment-17518182
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Fergus Nelson commented on HBASE-25903:
---------------------------------------

What would be the best way of getting the fix from ZOOKEEPER-2184 onto HBase 
1.4 ? I believe this would be an update the zookeeper version from 3.4.10 to 
3.4.13 

Would raising a pull request referencing this ticket be the way to go ?

> ReadOnlyZKClient APIs - CompletableFuture.get() calls can cause threads to 
> hang forver when ZK client create throws Non IOException
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-25903
>                 URL: https://issues.apache.org/jira/browse/HBASE-25903
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.5.0, 2.3.6, 2.4.4
>
>
> This is applicable for zk client versions which is not having fix for 
> ZOOKEEPER-2184.
> Now we are on zookeeper 3.5.7 on active 2.x branches. Still its better to 
> handle this case in our code.



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