THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- Has a handle to the concrete execution engine which is the org.apache.hadoop.mapred.JobClient in our case
- Initialize API to set up the submission engine
- Submit API is blocking if using the hadoopLocalRunner and returns a boolean for success or failure of submission and async if non-local. In case of async, the update API is used subsequently to track the progress of the job submission
- Update API can be invoked to query the status of the running job and update the Job submission record that holds the history information of a sqoop job across multiple runs
- Stop API to abort a running job
- Destroy API to mirror the initialize to clean up the submission engine on exit
MR ExecutionEngine
- Has a handle to the JobRequest object populated by the JobManager
- PrepareJob API to set up the necessary information required by the org.apache.hadoop.mapred.JobClient in our case
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