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https://issues.apache.org/jira/browse/HDFS-12478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16170264#comment-16170264
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Allen Wittenauer commented on HDFS-12478:
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bq. hdfs attach -remove
Using two conflicting verbs on the command line is extremely confusing. 'hdfs
attach' should probably 'hdfs psb' or something similar.
> [WRITE] Command line tools for managing Provided Storage Backup mounts
> ----------------------------------------------------------------------
>
> Key: HDFS-12478
> URL: https://issues.apache.org/jira/browse/HDFS-12478
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ewan Higgs
> Assignee: Ewan Higgs
> Priority: Minor
>
> This is a task for implementing the command line interface for attaching a
> PROVIDED storage backup system (see HDFS-9806, HDFS-12090).
> # The administrator should be able to mount a PROVIDED storage volume from
> the command line.
> {code}hdfs attach -create [-name <name>] <hdfs directory to backup> <backup
> path (external)>{code}
> # Whitelist of users who are able to manage mounts (create, attach, detach).
> # Be able to interrogate the status of the attached storage (last time a
> snapshot was taken, files being backed up).
> # The administrator should be able to remove an attached PROVIDED storage
> volume from the command line. This simply means that the synchronization
> process no longer runs. If the administrator has configured their setup to no
> longer have local copies of the data, the blocks in the subtree are simply no
> longer accessible as the external file store system is currently inaccessible.
> {code}hdfs attach -remove <name> [-force | -flush]{code}
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