Java Spring Boot 2 application monitoring with Netdata

This module monitors one or more Java Spring-boot 2 applications depending on configuration. Netdata can be used to monitor running Java Spring Boot 2 applications that expose their metrics with the use of the Spring Boot Actuator included in Spring Boot library.

Springboot2 module looks up http://localhost:8080/actuator/prometheus and http://127.0.0.1:8080/actuator/prometheus to detect Spring Boot application by default.

Charts#

  • Response Codes in requests/s
  • Threads in threads
  • Heap Memory Usage Overview in bytes
  • Heap Memory Usage Eden Space in bytes
  • Heap Memory Usage Survivor Space in bytes
  • Heap Memory Usage Old Space in bytes
  • Uptime in seconds

Configuration#

Edit the go.d/springboot2.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/springboot2.conf

The Spring Boot Actuator exposes these metrics over HTTP and is very easy to use:

  • add org.springframework.boot:spring-boot-starter-actuator and io.micrometer:micrometer-registry-prometheus to your application dependencies
  • set management.endpoints.web.exposure.include=* in your application.properties

Please refer to the Spring Boot Actuator: Production-ready features and 81. Actuator - Part IX. ‘How-to’ guides for more information.

Here is an example for 2 servers:

jobs:
- name: local
url: http://localhost:8080/actuator/prometheus
- name: remote
url: http://203.0.113.10:8080/actuator/prometheus

For all available options please see module configuration file.

Troubleshooting#

To troubleshoot issues with the springboot2 collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

First, navigate to your plugins directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s

You can now run the go.d.plugin to debug the collector:

./go.d.plugin -d -m springboot2
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