Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/3549#discussion_r106221305
--- Diff:
flink-streaming-connectors/flink-connector-kafka-base/src/main/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducerBase.java
---
@@ -374,4 +380,11 @@ public static Properties
getPropertiesFromBrokerList(String brokerList) {
props.setProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,
brokerList);
return props;
}
+
+ // this is exposed for testing purposes
+ protected long numPendingRecords() {
--- End diff --
There is the `@VisibleForTesting` annotation for that :)
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