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2.4 KiB
2.4 KiB
| id | title |
|---|---|
| kafka-emitter | Kafka Emitter |
To use this Apache Druid (incubating) extension, make sure to include kafka-emitter extension.
Introduction
This extension emits Druid metrics to Apache Kafka directly with JSON format.
Currently, Kafka has not only their nice ecosystem but also consumer API readily available.
So, If you currently use Kafka, It's easy to integrate various tool or UI
to monitor the status of your Druid cluster with this extension.
Configuration
All the configuration parameters for the Kafka emitter are under druid.emitter.kafka.
| property | description | required? | default |
|---|---|---|---|
druid.emitter.kafka.bootstrap.servers |
Comma-separated Kafka broker. ([hostname:port],[hostname:port]...) |
yes | none |
druid.emitter.kafka.metric.topic |
Kafka topic name for emitter's target to emit service metric. | yes | none |
druid.emitter.kafka.alert.topic |
Kafka topic name for emitter's target to emit alert. | yes | none |
druid.emitter.kafka.producer.config |
JSON formatted configuration which user want to set additional properties to Kafka producer. | no | none |
druid.emitter.kafka.clusterName |
Optional value to specify name of your druid cluster. It can help make groups in your monitoring environment. | no | none |
Example
druid.emitter.kafka.bootstrap.servers=hostname1:9092,hostname2:9092
druid.emitter.kafka.metric.topic=druid-metric
druid.emitter.kafka.alert.topic=druid-alert
druid.emitter.kafka.producer.config={"max.block.ms":10000}