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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8348) Polish the migration to 0.96
Date Thu, 22 Aug 2013 22:53:52 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13748021#comment-13748021
] 

stack commented on HBASE-8348:
------------------------------

I committed the script as a subtask.  Leaving this issue open as upgrade parent issue for
doc, and anything else we can think we need related to migration.
                
> Polish the migration to 0.96
> ----------------------------
>
>                 Key: HBASE-8348
>                 URL: https://issues.apache.org/jira/browse/HBASE-8348
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: rajeshbabu
>            Priority: Blocker
>             Fix For: 0.96.0
>
>         Attachments: 8348v5.txt, 8348v5.txt, HBASE-8348-approach-2.patch, HBASE-8348-approach-2-v2.1.patch,
HBASE-8348-approach-2-v2.2.patch, HBASE-8348-approach-2-v2.3.patch, HBASE-8348-approach-2-v2.4.patch,
HBASE-8348-approach-3.patch, HBASE-8348_trunk.patch, HBASE-8348_trunk_v2.patch, HBASE-8348_trunk_v3.patch,
log, log-2
>
>
> Currently, migration works but there's still a couple of rough edges:
>  - HBASE-8045 finished the .META. migration but didn't remove ROOT, so it's still on
the filesystem.
>  - Data in ZK needs to be removed manually. Either we fix up the data in ZK or we delete
it ourselves.
>  - TestMetaMigrationRemovingHTD has a testMetaUpdatedFlagInROOT method, but ROOT is gone
now.
> Elliott was also mentioning that we could have "hbase migrate" do the HFileV1 checks,
clear ZK, remove ROOT, etc.

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