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Konstantin Knauf updated FLINK-8410: ------------------------------------ Labels: (was: auto-closed) Priority: Not a Priority (was: Minor) > Kafka consumer's commitedOffsets gauge metric is prematurely set > ---------------------------------------------------------------- > > Key: FLINK-8410 > URL: https://issues.apache.org/jira/browse/FLINK-8410 > Project: Flink > Issue Type: Bug > Components: Connectors / Kafka, Runtime / Metrics > Affects Versions: 1.3.2, 1.4.0, 1.5.0 > Reporter: Tzu-Li (Gordon) Tai > Priority: Not a Priority > > The {{committedOffset}} metric gauge value is set too early. It is set here: > https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-kafka-0.10/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/Kafka010Fetcher.java#L224 > This sets the committed offset before the actual commit happens, which varies > depending on whether the commit mode is auto periodically, or committed on > checkpoints. Moreover, in the 0.9+ consumers, the {{KafkaConsumerThread}} may > choose to supersede some commit attempts if the commit takes longer than the > commit interval. > While the committed offset back to Kafka is not a critical value used by the > consumer, it will be best to have more accurate values as a Flink-shipped > metric. -- This message was sent by Atlassian Jira (v8.3.4#803005)