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https://issues.apache.org/jira/browse/HIVE-1174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12834536#action_12834536
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He Yongqiang commented on HIVE-1174:
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The problem in this jira is:
1) countJobs in Driver only count map-reduce tasks.
2) For mergeJob, there are two tasks (one dummyMove, and one merge task which
is a MRTask). It will count 1 job because dummyMove is not a MapReduceTask
3) But a bug in ConditionalTask will always inc jobCounter by 1 when removing
a task from candidate task list, even though it is not a MRTask,
> Job counter error if "hive.merge.mapfiles" equals true
> ------------------------------------------------------
>
> Key: HIVE-1174
> URL: https://issues.apache.org/jira/browse/HIVE-1174
> Project: Hadoop Hive
> Issue Type: Bug
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: hive-1174.1.patch, hive-1174.2.patch
>
>
> if hive.merge.mapfiles is set to true, the job counter will go to 3.
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