java提交hadoop

使用老版本的java api提交hadoop作业

} } 运行提交代码的类JSubmit import java.io.IOException;import java.net.URI;import java.net.URISyntaxException;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.fs....

通过java api提交自定义hadoop 作业

而java的数据类型可以通过hadoop数据类名的构造函数，或者set方法转换二、hadoop提交作业的的步骤分为八个，可以理解为天龙八步如下：map端工作：1.1 读取要操作的文件-这步会将文件的内容格式化成键值对的形式，键为每一行的起始位置...

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