【大数据】hadoop计数器
org.apache.hadoop.mapreduce.FileSystemCounter FILE_BYTES_READ FILE_BYTES_WRITTEN FILE_READ_OPS FILE_LARGE_READ_OPS FILE_WRITE_OPS HDFS_BYTES_READ HDFS_BYTES_WRITTEN HDFS_READ_OPS HDFS_LARGE_READ_OPS HDFS_WRITE_OPS org.apache.hadoop.mapreduce.JobCounter TOTAL_LAUNCHED_MAPS TOTAL_LAUNCHED_REDUCES RACK_LOCAL_MAPS SLOTS_MILLIS_MAPS SLOTS_MILLIS_REDUCES FALLOW_SLOTS_MILLIS_MAPS FALLOW_SLOTS_MILLIS_REDUCES org.apache.hadoop.mapreduce.TaskCounter MAP_INPUT_RECORDS MAP_OUTPUT_RECORDS MAP_OUTPUT_BYTES...