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我有一个 mapreduce 进程,它有 2 个映射器/缩减器对链接在一起。
我怎样才能对整个链条进行单元测试?
我查看了 MapReduceDriver,似乎无法弄清楚如何将第一个作业的输出通过管道传输到第二个。
谢谢