eclipse->文件->export->java->JAR file
选择项目，Options增加Add directory entries
finish
hadoop jar /tmp/hive-merge.jar merge.merge /user/hive/warehouse/achi /user/hive/warehouse/achi/out
merge.merge 表示merge包下的merge类
eclipse->文件->export->java->JAR file
选择项目，Options增加Add directory entries
finish
hadoop jar /tmp/hive-merge.jar merge.merge /user/hive/warehouse/achi /user/hive/warehouse/achi/out
merge.merge 表示merge包下的merge类