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putMerge

a demo for HDFS 将文件放到HDFS中的时候,有一个问题使用put命令时 put启动耗时太长,如果文件数量太多,文件太小,会耗时很长 所以,我用了一个hdsf的api 批量读取文件 将读取完的文件 写入HDFS中 参数代表的含义如下: args[0] 进来的目录 args[1] 出去的目录 args[2] hdfs的名字 args[3] 读取文件的大小 args[4]

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