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[jira] [Created] (FLINK-11218) fix the default restart delay value

lamber-ken created FLINK-11218:

             Summary: fix the default restart delay value
                 Key: FLINK-11218
             Project: Flink
          Issue Type: Improvement
          Components: Configuration
    Affects Versions: 1.6.2, 1.7.2
            Reporter: lamber-ken
            Assignee: lamber-ken

from 1.6.x version, default restart strategy was moved from ExcutionGraph to backend.

for now use NoOrFixedIfCheckpointingEnabledRestartStrategyFactory to generate default FixedDelayRestartStrategy, but the `{color:#660e7a}DEFAULT_RESTART_DELAY`{color}{color:#660e7a} {color}value is 0. {color:#660e7a}

it will endless _loop_ when a operator always throw error, it exhausts the CPU limit and MEM limit.

so default `{color:#660e7a}DEFAULT_RESTART_DELAY`{color}  value 10000L is better


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