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https://issues.apache.org/jira/browse/HDFS-9852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15385005#comment-15385005
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Wei-Chiu Chuang commented on HDFS-9852:
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Thanks [~aw] and [~cnauroth] for committing the patch!
> hdfs dfs -setfacl error message is misleading
> ---------------------------------------------
>
> Key: HDFS-9852
> URL: https://issues.apache.org/jira/browse/HDFS-9852
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Minor
> Labels: supportability
> Fix For: 2.8.0
>
> Attachments: HDFS-9852.001.patch, HDFS-9852.002.patch
>
>
> When I type
> {noformat}hdfs dfs -setfacl -m default:user::rwx{noformat}
> It prints error message:
> {noformat}
> -setfacl: <acl_spec> is missing
> Usage: hadoop fs [generic options] -setfacl [-R] [{-b|-k} {-m|-x <acl_spec>}
> <path>]|[--set <acl_spec> <path>]
> {noformat}
> But actually, it's the path that I missed. A correct command should be
> {noformat}
> hdfs dfs -setfacl -m default:user::rwx /data
> {noformat}
> In fact,
> {noformat}-setfacl -x | -m | --set{noformat} expects two parameters.
> We should print error message like this if it misses one:
> {noformat}
> -setfacl: Missing either <acl_spec> or <path>
> {noformat}
> and print the following if it misses two:
> {noformat}
> -setfacl: Missing arguments: <acl_spec> <path>
> {noformat}
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