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https://issues.apache.org/jira/browse/HDFS-12974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308894#comment-16308894
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Xiao Chen commented on HDFS-12974:
----------------------------------

Thanks [~zhenyi] for reporting the issue and posting a patch.

I'm able to reproduce this on trunk. But from a quick look, it seems the create 
zone used {{CryptoAdmin#prettifyException}}, and I didn't find a direct 
relation with {{StringUtils}}. Could you explain?

Would be great to see a direct test that fails-before, passes-after. Maybe we 
can use {{TestEncryptionZones}} and inject an exception

> Exception information can not be returned when I create transparent 
> encryption zone.
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-12974
>                 URL: https://issues.apache.org/jira/browse/HDFS-12974
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: encryption
>    Affects Versions: 3.0.0
>            Reporter: fang zhenyi
>            Assignee: fang zhenyi
>            Priority: Minor
>             Fix For: 3.1.0
>
>         Attachments: HDFS-12974.001.patch
>
>
> When I add the following configuration to the kms-acl.xml file, I create 
> encrypted space and I can not get any exception information.
> <property>
>   <name>key.acl.key2.GENERATE_EEK</name>
>   <value>mr</value>
> </property>
> root@fangzhenyi01:~# hdfs crypto -createZone -keyName key2 -path /zone
> 2018-01-02 10:41:44,632 WARN util.NativeCodeLoader: Unable to load 
> native-hadoop library for your platform... using builtin-java classes where 
> applicable
> RemoteException: 
> root@fangzhenyi01:~# 



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