[jira] [Commented] (HBASE-18885) HFileOutputFormat2 hardcodes default FileOutputCommitter

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

    [ https://issues.apache.org/jira/browse/HBASE-18885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181862#comment-16181862 ] 

Ted Yu commented on HBASE-18885:
--------------------------------

{code}
Applying: HBASE-18885 HFileOutputFormat2 hardcodes default FileOutputCommitter
error: hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.java: does not exist in index
Patch failed at 0001 HBASE-18885 HFileOutputFormat2 hardcodes default FileOutputCommitter
{code}
Please attach patch for branch-1

> HFileOutputFormat2 hardcodes default FileOutputCommitter
> --------------------------------------------------------
>
>                 Key: HBASE-18885
>                 URL: https://issues.apache.org/jira/browse/HBASE-18885
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>         Attachments: HBASE-18885.master.001.patch
>
>
> Apache Kylin uses HBase's HFileOutputFormat2.java to configure the MR job. The original reporting is in KYLIN-2788[1]. After some investigation, we found this class always uses the default "FileOutputCommitter", see [2], regardless of the job's configuration; so it always writing to "_temporary" folder. Since AWS EMR configured to use DirectOutputCommitter for S3, then this problem occurs: Hadoop expects to see the file directly under output path, while the RecordWriter generates them in "_temporary" folder. This caused no data be loaded to HTable.
> Seems this problem exists in all versions so far.
> [1] https://issues.apache.org/jira/browse/KYLIN-2788
> [2] https://github.com/apache/hbase/blob/master/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.java#L193



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