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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2802) Support for RW/RO snapshots in HDFS
Date Wed, 13 Mar 2013 21:32:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13601677#comment-13601677
] 

Suresh Srinivas commented on HDFS-2802:
---------------------------------------

bq. I think this is not right. Because it will destabilize branch 2. Dot releases are for
bug fixes, not new features.
Other dot version did add features. That is how we have significant functionality such  quorum
journal manager, Automatic failover and many other features. I would like to make snapshots
feature available as soon as possible and stabilize a release. 
                
> Support for RW/RO snapshots in HDFS
> -----------------------------------
>
>                 Key: HDFS-2802
>                 URL: https://issues.apache.org/jira/browse/HDFS-2802
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, namenode
>            Reporter: Hari Mankude
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 2802.patch, 2802.patch, HDFS-2802.20121101.patch, HDFS-2802-meeting-minutes-121101.txt,
HDFSSnapshotsDesign.pdf, snap.patch, snapshot-design.pdf, snapshot-design.tex, snapshot-one-pager.pdf,
Snapshots20121018.pdf, Snapshots20121030.pdf, Snapshots.pdf
>
>
> Snapshots are point in time images of parts of the filesystem or the entire filesystem.
Snapshots can be a read-only or a read-write point in time copy of the filesystem. There are
several use cases for snapshots in HDFS. I will post a detailed write-up soon with with more
information.

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