↓ 15 callersMethodpartition(String topic, Object key, byte[] keyBytes,
Object value, byte[] valueBytes, Cluster
src/main/java/org/bigdatatechcir/learn_kafka/part2_kafka_producer/DemoPartitioner.java:15
↓ 2 callersMethodprocess(String s, Context context, Iterable<Tuple3<String, Integer, Long>> elements, Collector<Tuple2<String, Integer
src/main/java/org/bigdatatechcir/learn_flink/part10_flink_restart/NoRestartStrategyDemo.java:140