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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6055) Snapshots in HBase 0.96
Date Wed, 23 May 2012 16:40:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281715#comment-13281715
] 

Jimmy Xiang commented on HBASE-6055:
------------------------------------

I have a concern.  Why should we do two phases?  I think the prepare phase is not needed.
 We have row level atomicity.  We don't need every region server to be on the same page. 
Since it is distributed, it is arguable about the meaning of point-in-time. That means it
is hard to say it is consistent/inconsistent point-in-time.

I think we each region server can try to create the snapshot at first.  If anyone fails, partial
snapshot can be just deleted.
                
> Snapshots in HBase 0.96
> -----------------------
>
>                 Key: HBASE-6055
>                 URL: https://issues.apache.org/jira/browse/HBASE-6055
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, master, regionserver, zookeeper
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>             Fix For: 0.96.0
>
>         Attachments: Snapshots in HBase.docx
>
>
> Continuation of HBASE-50 for the current trunk. Since the implementation has drastically
changed, opening as a new ticket.

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