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https://issues.apache.org/jira/browse/HBASE-13428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16298964#comment-16298964
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stack commented on HBASE-13428:
-------------------------------

Redid the start of a branch-2 binary over data written by 0.98.25. HDFS 2.7.2. 
Was able to still read ACL table. Data was written by ycsb. No exceptions in 
log. I think that is enough for beta-1 so moving this issue out to beta-2 now.

> Migration to hbase-2.0.0
> ------------------------
>
>                 Key: HBASE-13428
>                 URL: https://issues.apache.org/jira/browse/HBASE-13428
>             Project: HBase
>          Issue Type: Umbrella
>          Components: migration
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 2.0.0-beta-1
>
>
> Opening a 2.0 umbrella migration issue. Lets hang off this one any tools and 
> expectations migrating from 1.0 (or earlier) to 2.0. So far there are none 
> that I know of though there is an expectation in HBASE-13373 that hfiles are 
> at least major version 2 and minor version 3.  Lets list all such 
> expectations, etc., here.



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