When you create a job in a specified cluster by following the instructions in Creating a Job in a Specified Cluster or create and execute a job in a random cluster by following the instructions in Creating and Executing a Job in a Random Cluster, the driver-config-values parameter specifies the job configuration, which includes the following functions:

Retry upon Failure: If a job fails to be executed, you can choose whether to automatically restart the job.
Job Group: CDM allows you to group jobs. You can filter, delete, start, or export jobs by group.
Schedule Execution: Specify whether to execute scheduled jobs.
Concurrent Extractors: Enter the number of concurrent extractors.
Write Dirty Data: Specify this parameter if data that fails to be processed or filtered out during job execution needs to be written to OBS for future viewing. Before writing dirty data, create an OBS link.
Delete Job After Completion: Specify whether to delete a job after the job is executed.

Sample JSON File

"driver-config-values": {
        "configs": [
          {
            "inputs": [
              {
                "name": "throttlingConfig.numExtractors",
                "value": "1"
              },
              {
                "name": "throttlingConfig.numLoaders",
                "value": "1"
              },
              {
                "name": "throttlingConfig.recordDirtyData",
                "value": "false"
              }
            ],
            "name": "throttlingConfig"
          },
          {
            "inputs": [],
            "name": "jarConfig"
          },
          {
            "inputs": [
              {
                "name": "schedulerConfig.isSchedulerJob",
                "value": "false"
              },
              {
                "name": "schedulerConfig.disposableType",
                "value": "NONE"
              }
            ],
            "name": "schedulerConfig"
          },
          {
            "inputs": [],
            "name": "transformConfig"
          },
          {
            "inputs": [
              {
                "name": "retryJobConfig.retryJobType",
                "value": "NONE"
              }
            ],
            "name": "retryJobConfig"
          }
        ]
      }

Parameter Description

Parameter	Mandatory	Type	Description
throttlingConfig.numExtractors	No	Integer	Maximum number of concurrent extraction jobs. For example, 20.
groupJobConfig.groupName	No	Enumeration	Group to which a job belongs. The default group is DEFAULT.
throttlingConfig.numLoaders	No	Integer	This parameter is available only when HBase or Hive serves as the destination data source. Maximum number of loading jobs. For example, 5.
throttlingConfig.recordDirtyData	No	Boolean	Whether to write dirty data. For example, true.
throttlingConfig.writeToLink	No	String	Link to which dirty data is written. Currently, dirty data can be written only to OBS or HDFS. For example, obslink.
throttlingConfig.obsBucket	No	String	Name of the OBS bucket to which dirty data is written. This parameter is valid only when dirty data is written to OBS. For example, dirtyData.
throttlingConfig.dirtyDataDirectory	No	String	Directory to which dirty data is written To write dirty data to HDFS, set this parameter to the specified HDFS directory. To write dirty data to OBS, set this parameter to the directory in the OBS bucket. For example, /data/dirtydata/.
throttlingConfig.maxErrorRecords	No	String	Maximum number of error records in a single shard. When the number of error records of a map exceeds the upper limit, the task automatically ends. The imported data will not be rolled back.
schedulerConfig.isSchedulerJob	No	Boolean	Whether to enable a scheduled task. For example, true.
schedulerConfig.cycleType	No	String	Cycle type of a scheduled task. The options are as follows: minute: minute hour: hour day: day week: week month: month
schedulerConfig.cycle	No	Integer	Cycle of a scheduled task. If cycleType is set to minute and cycle is set to 10, the scheduled task is executed every 10 minutes.
schedulerConfig.runAt	No	String	Time when a scheduled task is triggered in a cycle. This parameter is valid only when cycleType is set to hour, week, or month. If cycleType is set to month, cycle is set to 1, and runAt is set to 15, the scheduled task is executed on the 15th day of each month. You can set runAt to multiple values and separate the values with commas (,). For example, if runAt is set to 1,2,3,4,5, the scheduled task is executed on the first day, second day, third day, fourth day, and fifth day of each month. If cycleType is set to week and runAt is set to mon,tue,wed,thu,fri, the scheduled task is executed on Monday to Friday. If cycleType is set to hour and runAt is set to 27,57, the scheduled task is executed at the 27th and 57th minute in the cycle.
schedulerConfig.startDate	No	String	Start time of a scheduled task. For example, 2018-01-24 19:56:19.
schedulerConfig.stopDate	No	String	End time of a scheduled task. For example, 2018-01-27 23:59:00. If you do not set the end time, the scheduled task is always executed and will never stop.
schedulerConfig.disposableType	No	Enumeration	Whether to delete a job after the job is executed. The options are as follows: NONE: A job will not be deleted after it is executed. DELETE_AFTER_SUCCEED: A job will be deleted only after it is successfully executed. It is applicable to massive one-time jobs. DELETE: A job will be deleted after it is executed, regardless of the execution result.
retryJobConfig.retryJobType	No	Enumeration	Whether to automatically retry if a job fails to be executed. The options are as follows: NONE: Do not retry. RETRY_TRIPLE: Retry three times.

Job Parameter Description

Sample JSON File

Parameter Description