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https://issues.apache.org/jira/browse/HDFS-8888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14696039#comment-14696039
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Konstantin Shvachko commented on HDFS-8888:
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Could you please explain your concept of volumes. HDFS already has one from
federation. I guess you are thinking of something different?
> Support volumes in HDFS
> -----------------------
>
> Key: HDFS-8888
> URL: https://issues.apache.org/jira/browse/HDFS-8888
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haohui Mai
>
> There are multiple types of zones (e.g., snapshottable directories,
> encryption zones, directories with quotas) which are conceptually close to
> namespace volumes in traditional file systems.
> This jira proposes to introduce the concept of volume to simplify the
> implementation of snapshots and encryption zones.
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