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:

Key	Description	Partition	Replication	Default	Compacted	Retention
lenses.topics.external.topology	Topic for applications to publish their topology	1	3 (recommended)	__topology	yes	N/A
lenses.topics.external.metrics	Topic for external application to publish their metrics	1	3 (recommended)	__topology__metrics	no	1 day
lenses.topics.metrics	Topic for SQL Processor to send the metrics	1	3 (recommended)	_kafka_lenses_metrics	no	1 day