Github user tzulitai commented on a diff in the pull request: https://github.com/apache/flink/pull/2559#discussion_r81089161 --- Diff: flink-streaming-connectors/flink-connector-kafka-0.9/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/Kafka09Fetcher.java --- @@ -301,4 +316,16 @@ public void commitSpecificOffsetsToKafka(Map<KafkaTopicPartition, Long> offsets) } return result; } + + private class CommitCallback implements OffsetCommitCallback { + + @Override + public void onComplete(Map<TopicPartition, OffsetAndMetadata> offsets, Exception exception) { + commitInProgress = false; + + if (exception != null) { + LOG.warn("Committing offsets to Kafka failed. This does not compromise Flink's checkpoints", exception); --- End diff -- Oops, this is actually correct, sorry.
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