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https://issues.apache.org/jira/browse/FLINK-8354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16593903#comment-16593903
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ASF GitHub Bot commented on FLINK-8354:
---------------------------------------
yanghua commented on a change in pull request #6615: [FLINK-8354]
[flink-connectors] Add ability to access and provider Kafka headers
URL: https://github.com/apache/flink/pull/6615#discussion_r213034601
##########
File path:
flink-connectors/flink-connector-kafka-0.9/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/Kafka09Fetcher.java
##########
@@ -206,6 +208,9 @@ protected KafkaConsumerCallBridge createCallBridge() {
return new KafkaConsumerCallBridge();
}
+ protected Iterable<Map.Entry<String, byte[]>>
headersOf(ConsumerRecord<byte[], byte[]> record) {
+ return Collections.emptyList();
+ }
Review comment:
insert a new line after this looks better
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> Flink Kafka connector ignores Kafka message headers
> -----------------------------------------------------
>
> Key: FLINK-8354
> URL: https://issues.apache.org/jira/browse/FLINK-8354
> Project: Flink
> Issue Type: Bug
> Components: Kafka Connector
> Environment: Kafka 0.11.0.0
> Flink 1.4.0
> flink-connector-kafka-0.11_2.11
> Reporter: Mohammad Abareghi
> Assignee: Aegeaner
> Priority: Major
> Labels: pull-request-available
>
> Kafka has introduced notion of Header for messages in version 0.11.0.0
> https://issues.apache.org/jira/browse/KAFKA-4208.
> But flink-connector-kafka-0.11_2.11 which supports kafka 0.11.0.0 ignores
> headers when consuming kafka messages.
> It would be useful in some scenarios, such as distributed log tracing, to
> support message headers to FlinkKafkaConsumer011 and FlinkKafkaProducer011.
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