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https://issues.apache.org/jira/browse/HBASE-3857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13056202#comment-13056202
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stack commented on HBASE-3857:
------------------------------

bq. What we are concerned about is that if we deploy HFile v2 in production and 
then get review comments that require a format change, we might have to migrate 
from HFile-v2-as-it-currently-is to HFile-v2-final-with-all-comments-addressed.

How can we help with that?  If you post the code before you roll it out, my 
guess is that you'd get some outside reviewers.

> Change the HFile Format
> -----------------------
>
>                 Key: HBASE-3857
>                 URL: https://issues.apache.org/jira/browse/HBASE-3857
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Liyin Tang
>            Assignee: Mikhail Bautin
>         Attachments: hfile_format_v2_design_draft_0.1.pdf, 
> hfile_format_v2_design_draft_0.3.pdf
>
>
> In order to support HBASE-3763 and HBASE-3856, we need to change the format 
> of the HFile. The new format proposal is attached here. Thanks for Mikhail 
> Bautin for the documentation. 

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