Debug in Microservices

How to troubleshoot when there is an error in the microservice application?

Log

We can use Log to quickly narrow down the space of the error. During development, we can save the log to the local file. If error happens, we can check the log file.

We can also use Spring Boot Actuator to monitor the application. It provides a set of HTTP endpoints to monitor the application. For example, Auditing, health, and metrics gathering.

Set up EKL to centralize the log. We can use Elasticsearch to store the log, Kibana to visualize the log, and Logstash to collect the log.

Distributed Tracing

Distributed Tracing is used to track the request flow across the microservices. If error happens, the distributed tracing can help us to find out which microservice is the root cause.

Class TraceId {
    String id;
    String parentId;
    String spanId;
    String traceId;
    String name;
    String timestamp;
    String duration;
    String localEndpoint;
    String remoteEndpoint;
    String tags;
    String annotations;
    String debug;
    String shared;
}