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https://issues.apache.org/jira/browse/HDFS-4026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13497650#comment-13497650
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Jimmy Xiang commented on HDFS-4026:
-----------------------------------
This seems to be intentional, for security purposes.
> Improve error message for dfsadmin -refreshServiceAcl
> -----------------------------------------------------
>
> Key: HDFS-4026
> URL: https://issues.apache.org/jira/browse/HDFS-4026
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.1-alpha
> Reporter: Stephen Chu
> Labels: newbie
>
> I ran _hdfs dfsadmin -refreshServiceAcl_ on a cluster that did not have
> Service Level Authorization enabled:
> {code}
> [schu@cs-10-20-90-154 ~]$ hdfs dfsadmin -refreshServiceAcl
> refreshServiceAcl:
> [schu@cs-10-20-90-154 ~]$ echo $?
> 255
> [schu@cs-10-20-90-154 ~]$
> {code}
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