[jira] [Commented] (FLINK-16517) Add a long running WordCount example

["Robert Metzger (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-16517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17117788#comment-17117788 ] 

Robert Metzger commented on FLINK-16517:
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I agree with Till that {{WindowJoin}} (and also {{TopSpeedWindowing.jar}}) are two examples of self-contained streaming jobs, that are part of the examples collection.
The review and maintenance overhead of making this example also long-running is just not justified.

I propose to close this ticket as "Won't fix" and close the accompanying pull request.


> Add a long running WordCount example
> ------------------------------------
>
>                 Key: FLINK-16517
>                 URL: https://issues.apache.org/jira/browse/FLINK-16517
>             Project: Flink
>          Issue Type: Improvement
>          Components: Examples
>            Reporter: Ethan Li
>            Assignee: Ethan Li
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> As far as I know, flink doesn't have a long running WordCount example for users to start with or doing some simple tests.  
> The closest one is SocketWindowWordCount. But it requires setting up a server (nc -l ), which is not hard, but still tedious for simple use cases. And it requires human input for the job to actually run.
> I propose to add or modify current WordCount example to have a SourceFunction that randomly generates input data based on a set of sentences, so the WordCount job can run forever. The generation ratio will be configurable.
> This will be the easiest way to start a long running flink job and can be useful for new users to start using flink quickly, or for developers to test flink easily.



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