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From "huaxiang sun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7880) HFile Recovery/Rewrite Tool
Date Sun, 26 Mar 2017 15:06:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15942301#comment-15942301

huaxiang sun commented on HBASE-7880:

I will clean up the code and unittests about it, after that, will post the patch, thanks.

> HFile Recovery/Rewrite Tool
> ---------------------------
>                 Key: HBASE-7880
>                 URL: https://issues.apache.org/jira/browse/HBASE-7880
>             Project: HBase
>          Issue Type: New Feature
>          Components: HFile
>    Affects Versions: 0.95.2
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>         Attachments: HBASE-7880-v0.patch
> Sometimes is useful to have a tool to migrate files from a new version to an old version
(e.g. convert a new XYZ encoded/compressed file to an old "uncompressed" format)
> also it will be useful to been able to recover an hfile from a corrupted state. (e.g.
trailer missing/broken, ...) 
> The "user" can provide the information about the file (compression & co) and  try
to recover as much as possible from the file by reading data blocks.

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