1.simple workflow of running a job
2.MR handled by streaming or pipe process from which out of java programs
3.report job or task stauts from TT to client through JT
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TaskTracker flow:
1.simple workflow of running a job
2.MR handled by streaming or pipe process from which out of java programs
3.report job or task stauts from TT to client through JT
============
TaskTracker flow: