您可以在客户机日志的作业计数器部分中找到此信息。例如：

Job Counters 
        Killed reduce tasks=1
        Launched map tasks=1
        Launched reduce tasks=7
        Data-local map tasks=1
        Total time spent by all maps in occupied slots (ms)=1071855
        Total time spent by all reduces in occupied slots (ms)=4083210
      **Total time spent by all map tasks (ms)=23819**
      **Total time spent by all reduce tasks (ms)=45369**
        Total vcore-milliseconds taken by all map tasks=23819
        Total vcore-milliseconds taken by all reduce tasks=45369
        Total megabyte-milliseconds taken by all map tasks=34299360
        Total megabyte-milliseconds taken by all reduce tasks=130662720
Map-Reduce Framework
        Map input records=3929235
        Map output records=15716940
        Map output bytes=132989251
        Map output materialized bytes=633590
        Input split bytes=86