| name | str | Activity name. | [optional] |
| type | ApiActivityType | | [optional] |
| parent | str | The name of the parent activity. | [optional] |
| start_time | str | The start time of this activity. | [optional] |
| finish_time | str | The finish time of this activity. | [optional] |
| id | str | Activity id, which is unique within a MapReduce service. | [optional] |
| status | ApiActivityStatus | | [optional] |
| user | str | The user who submitted this activity. | [optional] |
| group | str | The user-group of this activity. | [optional] |
| input_dir | str | The input data directory of the activity. An HDFS url. | [optional] |
| output_dir | str | The output result directory of the activity. An HDFS url. | [optional] |
| mapper | str | The mapper class. | [optional] |
| combiner | str | The combiner class. | [optional] |
| reducer | str | The reducer class. | [optional] |
| queue_name | str | The scheduler queue this activity is in. | [optional] |
| scheduler_priority | str | The scheduler priority of this activity. | [optional] |