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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7290) Online snapshots
Date Tue, 11 Dec 2012 08:03:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13528783#comment-13528783

Jonathan Hsieh commented on HBASE-7290:

For now I'm going to focus on the simple flush hfile only snapshot.  Log-based snapshots (simple
log, and global consistent) actually has non-trivial problems when: 1) a snapshot is taken,
2) edits occur, 3) a restore happens and 4) a crash causes recovery to be triggered.  This
seems to allow writes from the period after the snapshot and before the restore to be recovered
in a crash scenario.

> Online snapshots 
> -----------------
>                 Key: HBASE-7290
>                 URL: https://issues.apache.org/jira/browse/HBASE-7290
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jonathan Hsieh
> HBASE-6055 will be closed when the offline snapshots pieces get merged with trunk.  This
umbrella issue has all the online snapshot specific patches.  This will get merged once one
of the implementations makes it into trunk.  Other flavors of online snapshots can then be
done as normal patches instead of on a development branch.

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