在提供输入数据时(进入Hadoop文件系统[hdfs])，首先分段，然后分配给map工作线程(通过作业跟踪器)。

When input data is provided (into the Hadoop file system [HDFS]), it is first partitioned, and then distributed to map workers (via the job tracker).

youdao

在提供输入数据时(进入Hadoop文件系统[hdfs])，首先分段，然后分配给map工作线程(通过作业跟踪器)。

When input data is provided (into the Hadoop file system [HDFS]), it is first partitioned, and then distributed to map workers (via the job tracker).

youdao