Ethanlm opened a new pull request #11432: [FLINK-16517][Examples] Add an embedded input to enable a long-running WordCount example URL: https://github.com/apache/flink/pull/11432 ## What is the purpose of the change This PR modifies the 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 interval is 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. ## Brief change log - *Added a new SourceFunction `RandomSentenceSource` that generates random data continuously until cancellation* - *Modified the WordCount example to use the `RandomSentenceSource` as the input optionally* ## Verifying this change This change can be verified as follows: - *Manually verified the change by running a 1 node cluster with 1 JobManagers and 1 TaskManagers, submitted the new WordCount jobs with `--random` option with different intervals and verified the jobs worked correctly.* ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: no - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? JavaDocs
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