[Example] Flink Flink Learning

Bundled Examples

Detailed examples of different Flink api

• DataStream applications (Java / Scala)
• DataSet applications (Java / Scala)
• Table API / SQL queries (Java / Scala)

Examples of the method of operation:
The easiest way is to run a local flink cluster ./bin/start-cluster.sh
complete start flink cluster, we run native code WordCount example you can:

./bin/flink run ./examples/batch/WordCount.jar

Other examples can also be used in this way to run
a path very example no built-in data file, we need to develop data

./bin/flink run ./examples/batch/WordCount.jar --input /path/to/some/text/data --output /path/to/result

If it is not the local data, such as data on hdfs, you need to add the file path prefix hdfs: //

Examples on the Web

You can also learn from some blog flink

• How to use Apache Flink built with state of the stream application , showing an event-driven application, the application uses DataStream API and two SQL queries to achieve flow analysis.
• Use Apache Flink, Elasticsearch and Kibana build real-time dashboard application , shows how to use Apache Flink, Elasticsearch and Kibana build dashboards for real-time streaming data analysis solutions.
• Ververica of Flink training website provides a number of examples. View hands-on part and exercises.