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https://issues.apache.org/jira/browse/FLINK-9545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510921#comment-16510921
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Kostas Kloudas commented on FLINK-9545:
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Hi [~phoenixjiangnan]! Why not having a `flatmap` after the `readFile` and for
every incoming element you emit as many copies as you want?
Personally, I am not so fond of adding methods to the public APIs for such
specific usecases.
> Support read a file multiple times in Flink DataStream
> -------------------------------------------------------
>
> 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
> Priority: Major
> Fix For: 1.6.0
>
>
> Motivation: We have the requirements to read a bunch files, each file to read
> multiple times, to feed our streams
> Specifically we need {{StreamExecutionEnvironment.readFile/readTextFile}} to
> be able to read a file for a specified {{N}} times, but currently it only
> supports reading file once.
> We've implemented this internally. Would be good to get it back to the
> community version. This jira is to 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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