Alexey Vakhrenev created KAFKA-7535:
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Summary: KafkaConsumer doesn't report records-lag if
isolation.level is read_committed
Key: KAFKA-7535
URL: https://issues.apache.org/jira/browse/KAFKA-7535
Project: Kafka
Issue Type: Bug
Components: clients
Affects Versions: 2.0.0
Reporter: Alexey Vakhrenev
Starting from 2.0.0, {{KafkaConsumer}} doesn't report {{records-lag}} if
{{isolation.level}} is {{read_committed}}. The last version, where it works is
{{1.1.1}}.
The issue can be easily reproduced in {{kafka.api.PlaintextConsumerTest}} by
adding {{consumerConfig.setProperty("isolation.level", "read_committed")}}
witin related tests:
- {{testPerPartitionLagMetricsCleanUpWithAssign}}
- {{testPerPartitionLagMetricsCleanUpWithSubscribe}}
- {{testPerPartitionLagWithMaxPollRecords}}
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