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https://issues.apache.org/jira/browse/HADOOP-3637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12626397#action_12626397
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Sanjay Radia commented on HADOOP-3637:
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Pete says:
>Another requirement might be that the mounting of a snapshot should be part of
>the dfsshell and not require
>the user to launch new servers or something else and that the mounting be
>reasonably fast.
You mean the snapshot is mounted on the client side (ie a mini namenode in the
client side)? Or do you mean the main name node can mount a snapshot?
For large file systems, the main name node will not be able to fit a snapshot
and the current view of the file system both in memory.
> Support for snapshots
> ---------------------
>
> Key: HADOOP-3637
> URL: https://issues.apache.org/jira/browse/HADOOP-3637
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: Snapshots.pdf, Snapshots.pdf
>
>
> Support HDFS snapshots. It should support creating snapshots without shutting
> down the file system. Snapshot creation should be lightweight and a typical
> system should be able to support a few thousands concurrent snapshots. There
> should be a way to surface (i.e. mount) a few of these snapshots
> simultaneously.
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