Jason Gustafson created KAFKA-6540:
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Summary: Consumer lag metric is not updated when a partition is
paused
Key: KAFKA-6540
URL: https://issues.apache.org/jira/browse/KAFKA-6540
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
When a partition is paused, we no longer include it in fetches, which means we
do not get updates to the high watermark. Since lag is computed based on the
high watermark we've received in the most recent fetch, this means that the
reported lag of a paused partitions will be stuck at whatever value it had when
the partition was paused. A possible workaround is to continue fetching the
partition, but set the max requested bytes for that partition to 0.
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