| name | String | Activity name. | [optional] |
| type | ApiActivityType | | [optional] |
| parent | String | The name of the parent activity. | [optional] |
| startTime | String | The start time of this activity. | [optional] |
| finishTime | String | The finish time of this activity. | [optional] |
| id | String | Activity id, which is unique within a MapReduce service. | [optional] |
| status | ApiActivityStatus | | [optional] |
| user | String | The user who submitted this activity. | [optional] |
| group | String | The user-group of this activity. | [optional] |
| inputDir | String | The input data directory of the activity. An HDFS url. | [optional] |
| outputDir | String | The output result directory of the activity. An HDFS url. | [optional] |
| mapper | String | The mapper class. | [optional] |
| combiner | String | The combiner class. | [optional] |
| reducer | String | The reducer class. | [optional] |
| queueName | String | The scheduler queue this activity is in. | [optional] |
| schedulerPriority | String | The scheduler priority of this activity. | [optional] |