Spring Certified Professional 2023 · Free Practice Question Medium
Question 15
______ are the data points that are monitored and measured to assess various aspects of a Spring Boot application, such as its performance, resource utilization, and behavior.
-
A
Metrics
-
B
Checking
-
C
Tooling
-
D
Monitoring
Reveal correct answer
Correct answer: A
Explanation
Spring Boot metrics refer to the monitoring and measurement of various aspects of a Spring Boot application, such as its performance, resource utilization, and behavior. Metrics provide valuable insights into the application's health, allowing developers and system administrators to identify bottlenecks, track trends, and make informed decisions to optimize the application's performance.
Spring Boot provides built-in support for metrics through the integration with the Micrometer library. Micrometer is a vendor-agnostic metrics library that offers a unified API to collect and publish application metrics to various monitoring systems, such as Prometheus, Graphite, or InfluxDB.
With Spring Boot metrics, you can monitor various aspects of your application, including:
Request and response times: Measure the time taken to process HTTP requests and responses, helping to identify slow endpoints and potential performance issues.
Error rates: Track the number and rate of errors occurring in the application, enabling you to identify and resolve issues affecting the application's stability.
JVM metrics: Monitor the memory usage, garbage collection activity, and thread utilization of the underlying Java Virtual Machine (JVM) running the Spring Boot application.
Database metrics: Measure the performance and health of database queries, connection pool usage, and other database-related metrics.
Custom metrics: Define and track custom application-specific metrics to monitor specific aspects of your application's behavior and performance.
By leveraging Spring Boot metrics, you can gain valuable insights into your application's performance and behavior, enabling you to optimize its performance, detect and resolve issues promptly, and ensure a smooth and reliable user experience.
Springdoc:
Spring Boot Actuator provides dependency management and auto-configuration for Micrometer, an application metrics facade that supports numerous monitoring systems.
https://docs.spring.io/spring-boot/docs/2.1.9.RELEASE/reference/html/production-ready-metrics.html
Discussion
Think the marked answer is wrong, or have a better explanation? Share it below — comments appear after review.
