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https://issues.apache.org/jira/browse/HDFS-8888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14692587#comment-14692587
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Haohui Mai commented on HDFS-8888:
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>From an implementation standpoint, the concepts of volume provides a basic
>building block to simplify the implementation of snapshots and encryption
>zones that are available today. The concept of volume may simplify the tasks
>of administration and operations.
More detailed design will be available shortly afterward.
> Support the volume concepts 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., snapshot, encryption zone) which are
> conceptually close to namespace volumes in traditional filesystems.
> This jira proposes to introduce the concept of volume to simplify the
> implementation of snapshots and encryption zones.
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