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-<!--
-title: "Java Spring Boot 2 application monitoring with Netdata"
-custom_edit_url: https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/springboot/README.md
-sidebar_label: "Java Spring Boot 2 applications"
--->
-
-# Java Spring Boot 2 application monitoring with Netdata
-
-Monitors one or more Java Spring-boot applications depending on configuration.
-Netdata can be used to monitor running Java [Spring Boot](https://spring.io/) applications that expose their metrics with the use of the **Spring Boot Actuator** included in Spring Boot library.
-
-## Configuration
-
-The Spring Boot Actuator exposes these metrics over HTTP and is very easy to use:
-
--   add `org.springframework.boot:spring-boot-starter-actuator` to your application dependencies
--   set `endpoints.metrics.sensitive=false` in your `application.properties`
-
-You can create custom Metrics by add and inject a PublicMetrics in your application.
-This is a example to add custom metrics:
-
-```java
-package com.example;
-
-import org.springframework.boot.actuate.endpoint.PublicMetrics;
-import org.springframework.boot.actuate.metrics.Metric;
-import org.springframework.stereotype.Service;
-
-import java.lang.management.ManagementFactory;
-import java.lang.management.MemoryPoolMXBean;
-import java.util.ArrayList;
-import java.util.Collection;
-
-@Service
-public class HeapPoolMetrics implements PublicMetrics {
-
-    private static final String PREFIX = "mempool.";
-    private static final String KEY_EDEN = PREFIX + "eden";
-    private static final String KEY_SURVIVOR = PREFIX + "survivor";
-    private static final String KEY_TENURED = PREFIX + "tenured";
-
-    @Override
-    public Collection<Metric<?>> metrics() {
-        Collection<Metric<?>> result = new ArrayList<>(4);
-        for (MemoryPoolMXBean mem : ManagementFactory.getMemoryPoolMXBeans()) {
-            String poolName = mem.getName();
-            String name = null;
-            if (poolName.indexOf("Eden Space") != -1) {
-                name = KEY_EDEN;
-            } else if (poolName.indexOf("Survivor Space") != -1) {
-                name = KEY_SURVIVOR;
-            } else if (poolName.indexOf("Tenured Gen") != -1 || poolName.indexOf("Old Gen") != -1) {
-                name = KEY_TENURED;
-            }
-
-            if (name != null) {
-                result.add(newMemoryMetric(name, mem.getUsage().getMax()));
-                result.add(newMemoryMetric(name + ".init", mem.getUsage().getInit()));
-                result.add(newMemoryMetric(name + ".committed", mem.getUsage().getCommitted()));
-                result.add(newMemoryMetric(name + ".used", mem.getUsage().getUsed()));
-            }
-        }
-        return result;
-    }
-
-    private Metric<Long> newMemoryMetric(String name, long bytes) {
-        return new Metric<>(name, bytes / 1024);
-    }
-}
-```
-
-Please refer [Spring Boot Actuator: Production-ready Features](https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html#production-ready) and [81. Actuator - Part IX. ‘How-to’ guides](https://docs.spring.io/spring-boot/docs/current/reference/html/howto.html#howto-actuator) for more information.
-
-## Charts
-
-1.  **Response Codes** in requests/s
-
-    -   1xx
-    -   2xx
-    -   3xx
-    -   4xx
-    -   5xx
-    -   others
-
-2.  **Threads**
-
-    -   daemon
-    -   total
-
-3.  **GC Time** in milliseconds and **GC Operations** in operations/s
-
-    -   Copy
-    -   MarkSweep
-    -   ...
-
-4.  **Heap Memory Usage** in KB
-
-    -   used
-    -   committed
-
-## Usage
-
-Edit the `python.d/springboot.conf` configuration file using `edit-config` from the Netdata [config
-directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`.
-
-```bash
-cd /etc/netdata   # Replace this path with your Netdata config directory, if different
-sudo ./edit-config python.d/springboot.conf
-```
-
-This module defines some common charts, and you can add custom charts by change the configurations.
-
-The configuration format is like:
-
-```yaml
-<id>:
-  name: '<name>'
-  url:  '<metrics endpoint>' # ex. http://localhost:8080/metrics
-  user: '<username>'         # optional
-  pass: '<password>'         # optional
-  defaults:
-    [<chart-id>]: true|false
-  extras:
-  - id: '<chart-id>'
-    options:
-      title:  '***'
-      units:  '***'
-      family: '***'
-      context: 'springboot.***'
-      charttype: 'stacked' | 'area' | 'line'
-    lines:
-    - { dimension: 'myapp_ok',  name: 'ok',  algorithm: 'absolute', multiplier: 1, divisor: 1} # it shows "myapp.ok" metrics
-    - { dimension: 'myapp_ng',  name: 'ng',  algorithm: 'absolute', multiplier: 1, divisor: 1} # it shows "myapp.ng" metrics
-```
-
-By default, it creates `response_code`, `threads`, `gc_time`, `gc_ope` abd `heap` charts.
-You can disable the default charts by set `defaults.<chart-id>: false`.
-
-The dimension name of extras charts should replace `.` to `_`.
-
-Please check
-[springboot.conf](https://raw.githubusercontent.com/netdata/netdata/master/collectors/python.d.plugin/springboot/springboot.conf)
-for more examples.
-
-