Micrometer

Elasticsearch

Simple Microservice Monitoring

Micrometer

Think SL4J for metrics!
Collection facade
- Time, count, and gauge code with a vendor neutral API

Micrometer

Out of the box with Spring:
- JVM stats
- CPU usage
- Spring MVC and WebFlux request latencies
- RestTemplate latencies
- Cache utilization
- Datasource utilization, including HikariCP pool metrics
- RabbitMQ connection factories
- File descriptor usage
- Logback events
- Uptime
- Tomcat usage

Elasticsearch

Database for metrics and logs
Schema-free storage and retrieval via APIs
Available as an xPaaS offering

# Connection details for elastic
management.metrics.export.elastic.host=http://localhost:9200
management.metrics.export.elastic.index=metrics-index-name
management.metrics.export.elastic.indexDate=false
management.metrics.export.elastic.userName=svc.Metrics_Service_User
management.metrics.export.elastic.password=password

# Global Tags (Reported with every stat)
management.metrics.tags.environment=DevSandbox
management.metrics.tags.pod=${hostname}

Autoconfiguration

<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-core</artifactId>
</dependency>
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-elastic</artifactId>
</dependency>

Dependencies

Setup

But it is difficult to analyse/visualise these metrics...

Not offered centrally but can be hosted and connected to the elasticsearch instance

Query Based Searching

Dashboarding