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Mohsen Zainalpour commented on KAFKA-5855: ------------------------------------------ Thanks. Actually It was my misunderstanding. Consumer is able to calculate lags on each "fetch" request and in my application it takes more time to consume messages and make a new fetch request. Therefore, I was not able to see the actual lags. I am going to resolve the issue > records-lag is always zero > -------------------------- > > Key: KAFKA-5855 > URL: https://issues.apache.org/jira/browse/KAFKA-5855 > Project: Kafka > Issue Type: Bug > Components: consumer, metrics > Affects Versions: 0.10.1.0, 0.11.0.0 > Reporter: Mohsen Zainalpour > Priority: Minor > > I use Prometheus JmxExporter to export Kafka consumer metrics but the value > of records-lag is always zero. -- This message was sent by Atlassian JIRA (v6.4.14#64029)