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https://issues.apache.org/jira/browse/HDFS-10324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDFS-10324:
-----------------------------------
Release Note: HDFS will create a ".Trash" subdirectory when creating a new
encryption zone to support soft delete for files deleted within the encryption
zone. A new "dfsadmin -provisionTrash" command has been introduced to provision
trash directories for encryption zones created with Apache Hadoop minor
releases prior to 2.8.0. (was: HDFS will create a ".Trash" directory when
creating a new encryption zone for files deleted within the encryption zone. A
new "dfsadmin -provisionTrash" command has been introduced to provision trash
directories for encryption zones created with Apache Hadoop minor releases
prior to 2.8.0.)
> Trash directory in an encryption zone should be pre-created with correct
> permissions
> ------------------------------------------------------------------------------------
>
> Key: HDFS-10324
> URL: https://issues.apache.org/jira/browse/HDFS-10324
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: encryption
> Affects Versions: 2.8.0
> Environment: CDH5.7.0
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Fix For: 2.8.0
>
> Attachments: HDFS-10324.001.patch, HDFS-10324.002.patch,
> HDFS-10324.003.patch, HDFS-10324.004.patch, HDFS-10324.005.patch,
> HDFS-10324.006.patch, HDFS-10324.007.patch, HDFS-10324.008.patch
>
>
> We encountered a bug in HDFS-8831:
> After HDFS-8831, a deleted file in an encryption zone is moved to a .Trash
> subdirectory within the encryption zone.
> However, if this .Trash subdirectory is not created beforehand, it will be
> created and owned by the first user who deleted a file, with permission
> drwx------. This creates a serious bug because any other non-privileged user
> will not be able to delete any files within the encryption zone, because they
> do not have the permission to move directories to the trash directory.
> We should fix this bug, by pre-creating the .Trash directory with sticky bit.
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