[AURORA-82] Introduce a DRAINING task state into the scheduler state machine

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: Reliability, Scheduler
• Assignee: Maxim Khutornenko
• Reporter: Maxim Khutornenko
• Created: 23/Jan/14 22:58
• Updated: 27/Mar/14 17:20
• Resolved: 13/Feb/14 16:24

Description

We need to distinguish user initiated restart action from the operator requested restart due to host draining. Proposing a DRAINED state that would replace an overloaded RESTARTING state in case of host draining.