[REEF-1327] Creating task states and state transitions for the IMRU Driver

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 0.15
• Component/s: IMRU, REEF.NET
• Labels: FT
• Assignee: Julia Wang
• Reporter: Julia Wang
• Created: 08/Apr/16 20:53
• Updated: 26/Apr/16 16:24
• Resolved: 26/Apr/16 16:24

Description

To support fault tolerant, we need to track task states and ensure the correct/allowed state transitions.

Here are the task states:
TaskNew,
TaskSubmitting,
TaskRunning,
TaskCompeleted,
TaskWaitingForClose,
TaskClosedByDriver,
TaskFailedByEvaluatorFailure,
TaskFailedByGroupCommunication,
TaskFailedAppError,
TaskFailedSystemError

Here are the events taht trigger the state transition:
SubmittingTask,
RunningTask,
CompleteTask,
WaitingTaskToClose,
CloseTask,
FailTaskAppError,
FailTaskSystemError,
FaileTaskEvaluatorError,
FailTaskCommuError

The state transition diagram is defined the the Fault Tolerant design doc. It is attached.

Issue Links

• Is contained by: REEF-1223 IMRU Fault Tolerance - restart failed evaluators
• is related to: REEF-1335 Create State Machine for IMRU fault tolerance