[jira] Commented: (HBASE-974) New Backup Export/Import MR for 0.18/0.19

["atppp (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733118#action_12733118 ] 

atppp commented on HBASE-974:
-----------------------------

very interesting idea of directly serializing RR. However, in importer reducer, as you said, you could create new HTable in configure(), but you don't even have to do that. You can just directly let output collect (key, batchUpdate) and TableReduce would take care of committing. Plus TableReduce sets autoflush off which _significantly_ boosts importing performance.

see original example in HBASE-897 and my recent changes. (should mark 897 duplicate or close it?)

> New Backup Export/Import MR for 0.18/0.19
> -----------------------------------------
>
>                 Key: HBASE-974
>                 URL: https://issues.apache.org/jira/browse/HBASE-974
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.18.0, 0.18.1, 0.19.0
>            Reporter: Jonathan Gray
>            Assignee: Erik Holstad
>            Priority: Minor
>         Attachments: ExportMR.java, ExportMR.sh, ImportMR.java, ImportMR.sh, makeExportJar.sh, makeImportJar.sh
>
>
> Erik has built a new backup tool that's compatible with newer versions of HBase.

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