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

[Shang Yuanchun (Jira)]

Ethan Li created FLINK-16517:
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             Summary: 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


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.

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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