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Posted to issues@hbase.apache.org by "huaxiang sun (JIRA)" <ji...@apache.org> on 2017/04/14 18:31:41 UTC

[jira] [Commented] (HBASE-7880) HFile Recovery/Rewrite Tool

    [ https://issues.apache.org/jira/browse/HBASE-7880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15969364#comment-15969364 ] 

huaxiang sun commented on HBASE-7880:
-------------------------------------

Take this over from [~mbertozzi], I will continue to work on it.

> 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: huaxiang sun
>            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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