mas-chen commented on code in PR #20:
URL:
https://github.com/apache/flink-connector-kafka/pull/20#discussion_r1231661170
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flink-connector-kafka/src/main/java/org/apache/flink/connector/kafka/source/KafkaSource.java:
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@@ -98,20 +98,24 @@
private final KafkaRecordDeserializationSchema<OUT> deserializationSchema;
// The configurations.
private final Properties props;
+ // Client rackId callback
+ private final Supplier<String> rackIdSupplier;
Review Comment:
This should be a "CloseableSerializableSupplier". A supplier may contain a
http client for example and also needs to be closed properly by Flink
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