hadoop-streaming 如何删除尾随制表符符号

Question

如何去掉制表符

 hadoop jar \
      /usr/hdp/3.1.0.0-78/hadoop-mapreduce/hadoop-streaming.jar \
      -Dmapred.reduce.tasks=1 \
      -Dmapred.job.queue.name=default \
      -input hdfs://yyclusterxx/hive_warehouse/xx.db/tab/dt=2023-01-03 \
      -output hdfs://yyclusterxx/hive_warehouse/xx.db/tab/dt=2023-01-03-test5 \
      -mapper cat \
      -reducer cat

Answer 1

我重写了 outtextformat 来解决这个问题