Kafka monitoring is a service written in golang who will help you to monitoring and calculate your SLO over your kafka cluster. The service will start a kafka producer who sends fake data to your kafka cluster, collecting the result in different prometheus metrics. Using this metrics you can create different alerts or dashboards.
The repo provide a makefile with some useful instruccion. You can start a kafka cluster with zookeeper using the docker-compose file in this project. This will deploy a simple local cluster in which you can test your service.
make start-environOnce you have the kafka cluster up and running you can start your kafka-monitoring instance and take a look on the metrics. We have 3 modes of running:
- Producer: Running a kafka synchronous producer client
- Consumer: Running a kafka consumer group
- Both client. Running a producer and consumer in same app. Running producer and consumer in the same pod is not the preferred approach for many requests. Use it at your own risk.
You can run each one using the next commands:
make run-producer
make run-consumer
make run-appNevertheless, you can build the service and run the binary. Next command will generate a binary in bin/kafka-slo-monitoring who you can run locally.
make run-binary| Value | Type | Labels | Description |
|---|---|---|---|
| kafka_monitoring_cluster_up | Gauge | Cluster | Kafka cluster with error connection. 1 if cluster is up, 0 if cluster is down |
| kafka_monitoring_total_messages_send | Counter | Cluster, Topic | Total messages send by the kafka monitoring services |
| kafka_monitoring_total_messages_read | Counter | Cluster, Topic | Total messages read by the kafka monitoring services |
| kafka_monitoring_error_total_messages_send | Counter | Cluster, Topic | Total messages with errors send by the kafka monitoring services |
| kafka_monitoring_message_send_duration | Summary | Cluster, Topic | Latency for kafka producer message send |
| kafka_monitoring_error_in_read | Counter | Cluster, Topic | Errors when consumer is trying to read from cluster |
Read the full prometheus metrics docs here
We provide couple of dashboard as an example for the main monitoring system like grafana or wavefront.
Inside the resources folder you will find an grafana example dashboard.
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