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https://issues.apache.org/jira/browse/HDFS-12484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDFS-12484:
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Attachment: HDFS-12484.002.patch
Rev02.
Perhaps a better remedy for this problem is to intercept the exception and log
it at debug level if is an AccessControlException, as it is expected for
non-privileged user.
Convert the test case as well. A non-privileged user should not expect expunge
removes files from encryption zone trash directory.
> hdfs dfs -expunge requires superuser permission after 2.8
> ---------------------------------------------------------
>
> Key: HDFS-12484
> URL: https://issues.apache.org/jira/browse/HDFS-12484
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.8.0, 3.0.0-alpha1
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Attachments: HDFS-12484.001.patch, HDFS-12484.002.patch
>
>
> Hadoop 2.8 added a feature to support trash inside encryption zones, which is
> a great feature to have.
> However, it breaks the existing -expunge semantics because now a user must
> have superuser permission in order to -expunge. The reason behind that is
> that -expunge gets all encryption zone paths using
> DFSClient#listEncryptionZones, which requires super user permission.
> Not sure what's the best way to address this, so file this jira to invite
> comments.
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