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Collect Application Metrics with Netdata
Netdata collects per-second metrics from a wide variety of applications running on your systems, including web servers,
databases, message brokers, email servers, search platforms, and more. These metrics collectors are pre-installed with
every Netdata Agent and typically require no configuration. Netdata also
uses apps.plugin to gather and visualize resource utilization per application
on Linux systems.
The apps.plugin inspects the Linux process tree every second, similar to top or ps fax, and collects resource
utilization data for every running process. However, Netdata goes a step further: instead of just displaying raw data,
it transforms it into easy-to-understand charts. Rather than presenting a long list of processes, Netdata categorizes
applications into meaningful groups, such as "web servers" or "databases." Each category has its own charts in the
Applications section of your Netdata dashboard. Additionally, there are charts for individual users and user groups
under the Users and User Groups sections.
In addition to charts, apps.plugin offers the Processes Function,
which visualizes process entries in a table and allows for intuitive exploration of the processes. For more details on
how the visualization of Functions works, check out the documentation on
the Top tab.
Popular application collectors:
| Collector | Description |
|---|---|
| Prometheus | Gathers metrics from one or more Prometheus endpoints that use the OpenMetrics exposition format. Auto-detects more than 600 endpoints. |
| Web server logs (Apache, NGINX) | Tails access logs and provides very detailed web server performance statistics. This module is able to parse 200k+ rows in less than half a second. |
| MySQL | Collects database global, replication, and per-user statistics. |
| Redis | Monitors database status by reading the server's response to the INFO command. |
| Apache | Collects Apache web server performance metrics via the server-status?auto endpoint. |
| Nginx | Monitors web server status information by gathering metrics via ngx_http_stub_status_module. |
| Postgres | Collects database health and performance metrics. |
| ElasticSearch | Collects search engine performance and health statistics. Can optionally collect per-index metrics as well. |
Check available data collection integrations for a comprehensive view to all the integrations you can use to gather metrics with Netdata.