[jira] [Commented] (HBASE-4039) Users should be able to choose custom TableInputFormats without modifying TableMapReduceUtil.initTableMapperJob().

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

    [ https://issues.apache.org/jira/browse/HBASE-4039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13080414#comment-13080414 ] 

Ted Yu commented on HBASE-4039:
-------------------------------

Patch looks good.

> Users should be able to choose custom TableInputFormats without modifying TableMapReduceUtil.initTableMapperJob().
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4039
>                 URL: https://issues.apache.org/jira/browse/HBASE-4039
>             Project: HBase
>          Issue Type: New Feature
>          Components: mapreduce
>    Affects Versions: 0.90.3
>         Environment: HBase-0.90.3. OS, hardware specs not relevant.
>            Reporter: Edward Choi
>            Priority: Minor
>         Attachments: HBASE-4039.1.patch
>
>
> Currently, org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.initTableMapperJob() forces any Hbase job to use the default TableInputFormat.class as the job's input format class.
> "job.setInputFormatClass(TableInputFormat.class);" ==> This line is included in initTableMapperJob().
> This restriction causes users to modify initTableMapperJob() in addition to implementing their own TableInputFormat. 
> It would be nicer if users can use custom TableInputFormats without additionally tampering with HBase source code.

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