Zhu Zhu created FLINK-14248:
-------------------------------

             Summary: LazyFromSourcesSchedulingStrategy should support to tasks 
in terminal state
                 Key: FLINK-14248
                 URL: https://issues.apache.org/jira/browse/FLINK-14248
             Project: Flink
          Issue Type: Sub-task
            Reporter: Zhu Zhu


{{LazyFromSourcesSchedulingStrategy}} now will only schedule tasks in CREATED 
state. 
However, the DefaultScheduler will reset failed tasks when actually restarting 
them.
This makes failed tasks not able to be restarted with 
{{LazyFromSourcesSchedulingStrategy}}.

We can keep {{LazyFromSourcesSchedulingStrategy}} to schedule tasks in CREATED 
state in normal scheduling. And make it schedule tasks in terminal state when 
trying to restart tasks.




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