4.1

Kafka topics

Lenses requires these Kafka topics to be available, otherwise it will try to created them. The topics can be created manually before Lenses is run, or allow Lenses the correct Kafka ACLs to create the topics:

KeyDescriptionPartitionReplicationDefault
lenses.topics.external.topologyTopic for applications to publish their topology13 (recommended)__topology
lenses.topics.external.metricsTopic for external application to publish their metrics13 (recommended)__topology__metrics
lenses.topics.metricsTopic for SQL Processor metrics. For every processor and every of its runners, it will store producer and consumer metrics.11_kafka_lenses_metrics