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• A GroomServer forks a new task.
• The spawned task ack with metrics to GroomServer.
• Upon reception of task's ack, the GroomServer exports metrics to monitor system.
  

Failure Case

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• A task failure event happens.
• A corresponded GroomServer detects the task failure.
• The GroomServer tries to restart the task.
• If failing restart, the GroomServer export by marking the task as failed.