标签：Hadoop: LongWritable cannot be cast to org.apache.hadoop.io.IntWritable

Hadoop: LongWritable cannot be cast to org.apache.hadoop.io.IntWritable

写MR Job的时候遇到一个坑爹的异常： LongWritable cannot be cast to org.apache.hadoop.io.IntWritable 当写Map的时候，key的默认输入就是LongWritable。...

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1年前 (2023)

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