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https://issues.apache.org/jira/browse/HADOOP-12466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15065791#comment-15065791
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Akira AJISAKA commented on HADOOP-12466:
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Committing this patch.
bq. -1 whitespace
Actually there are no trailing whitespace in the patch. I'll file a jira in
Yetus project.
bq. -1 asflicense
This is caused by HDFS-9173. I asked Zhe Zhang to fix it.
> MapReduce tutorial clarifications
> ---------------------------------
>
> Key: HADOOP-12466
> URL: https://issues.apache.org/jira/browse/HADOOP-12466
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation
> Reporter: chris snow
> Assignee: Kai Sasaki
> Attachments: HADOOP-12466.01.patch
>
>
> The current MapReduce tutorial has the following statement which is confusing:
> {quote}
> Overall, Mapper implementations are passed the Job for the job via the
> Job.setMapperClass(Class) method.
> {quote}
> The sentence seems to contradict itself. The code shows the mapper getting
> passed to the job. However, the working suggests that the job is passed to
> the mapper?
> https://hadoop.apache.org/docs/current/hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduceTutorial.html#Mapper
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