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https://issues.apache.org/jira/browse/GIRAPH-30?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102216#comment-13102216
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Andrew Purtell commented on GIRAPH-30:
--------------------------------------

+1, thanks, that is more helpful to newcomers.



> NPE in ZooKeeperManager if base directory cannot be created
> -----------------------------------------------------------
>
>                 Key: GIRAPH-30
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-30
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>         Attachments: GIRAPH-30.2.patch, GIRAPH-30.patch
>
>
> If the base directory cannot be created, for example if running on secure 
> Hadoop and the user home directory does not exist, ZooKeeperManager will 
> throw an NPE when trying to list it. It would be better to throw an 
> IOException with an informative message.

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