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[jira] [Created] (FLINK-9545) Support read file for N times in Flink stream


Bowen Li created FLINK-9545:
-------------------------------

             Summary: Support read file for N times in Flink stream
                 Key: FLINK-9545
                 URL: https://issues.apache.org/jira/browse/FLINK-9545
             Project: Flink
          Issue Type: Improvement
          Components: DataStream API
    Affects Versions: 1.6.0
            Reporter: Bowen Li
            Assignee: Bowen Li
             Fix For: 1.6.0


we need {{StreamExecutionEnvironment.readFile/readTextFile}} to read each file for N times, but currently it only supports reading file once.

add support for the feature.

Plan:

add a new processing mode as PROCESSING_N_TIMES, and add additional parameter {{numTimes}} for {{StreamExecutionEnvironment.readFile/readTextFile}}



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