> *New to netdata? Here is a live demo: [http://my-netdata.io](http://my-netdata.io)*
-**netdata** is a system for **real-time performance and health monitoring**! It provides **unparalleled insights, in real-time, with interactive web dashboards**, of everything happening on the system it runs, including supported applications.
+**netdata** is a system for **distributed real-time performance and health monitoring**.
+It provides **unparalleled insights, in real-time**, of everything happening on the
+system it runs (including applications such as web, or database servers), using
+**modern interactive web dashboards**.
-_netdata is designed to permanently run on all systems (**physical** & **virtual** servers, **containers**, **IoT** devices), without disrupting the applications running on them._
+_netdata is **fast** and **efficient**, designed to permanently run on all systems
+(**physical** & **virtual** servers, **containers**, **IoT** devices), without
+disrupting their core function._
---
-
## User base
-netdata was publicly announced publicly on March 31st, 2016.
-
-*Since May 16th 2016 (the time the [global public netdata registry](https://github.com/firehol/netdata/wiki/mynetdata-menu-item) was released):*
-
+*Since May 16th 2016 (the date the [global public netdata registry](https://github.com/firehol/netdata/wiki/mynetdata-menu-item) was released):*<br/>
[![User Base](https://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_entries&dimensions=persons&label=user%20base&units=null&value_color=blue&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry) [![Monitored Servers](https://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_entries&dimensions=machines&label=servers%20monitored&units=null&value_color=orange&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry) [![Sessions Served](https://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_sessions&label=sessions%20served&units=null&value_color=yellowgreen&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry)
-*in the last 24 hours:*
-
+*in the last 24 hours:*<br/>
[![New Users Today](http://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_entries&dimensions=persons&after=-86400&options=unaligned&group=incremental-sum&label=new%20users%20today&units=null&value_color=blue&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry) [![New Machines Today](https://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_entries&dimensions=machines&group=incremental-sum&after=-86400&options=unaligned&label=servers%20added%20today&units=null&value_color=orange&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry) [![Sessions Today](https://registry.my-netdata.io/api/v1/badge.svg?chart=netdata.registry_sessions&after=-86400&group=incremental-sum&options=unaligned&label=sessions%20served%20today&units=null&value_color=yellowgreen&precision=0&v42)](https://registry.my-netdata.io/#menu_netdata_submenu_registry)
---
<a href="https://octoverse.github.com/" target="_blank"><img src="https://cloud.githubusercontent.com/assets/2662304/18795170/ec321f32-81cb-11e6-92a8-d03492f0b00d.png"/></a>
</p>
-> `Oct 4th, 2016` - **[netdata v1.4.0 released!](https://github.com/firehol/netdata/releases)**
->
-> - the **fastest** netdata ever (with a better look too)!
-> - improved **IoT** and **containers** support!
-> - **alarms** improved in almost every way!
-> - new plugins: softnet netdev, extended TCP metrics, UDPLite, NFS v2, v3 client (server was there already), NFS v4 server & client, APCUPSd, RetroShare
-> - improved plugins: mysql, cgroups, hddtemp, sensors, phpfm, tc (QoS)
+`Oct 4th, 2016` - **[netdata v1.4.0 released!](https://github.com/firehol/netdata/releases)**
+
+ - the **fastest** netdata ever (with a better look too)
+ - improved **IoT** and **containers** support
+ - **alarms** improved in almost every way
+ - new plugins: softnet netdev, extended TCP metrics, UDPLite, NFS v2, v3 client (server was there already), NFS v4 server & client, APCUPSd, RetroShare
+ - improved plugins: mysql, cgroups, hddtemp, sensors, phpfm, tc (QoS)
---
-## At a glance
+## Features
-netdata:
<p align="center">
<img src="https://cloud.githubusercontent.com/assets/2662304/19168687/f6a567be-8c19-11e6-8561-ce8d589e8346.gif"/>
</p>
- - is **blazingly performance data visualization** - it responds to all queries in less than 0.5 ms per metric, even on low-end hardware!
- - is **highly efficient performance data collector** - it collects thousands of metrics per server per second, with just 1% CPU utilization of a single core on modern hardware!
- - has a **sophisticated alarming engine** - supporting dynamic thresholds, hysteresis, templating, multiple notification methods!
- - out of the box collects **2000+ metrics**!
- - needs **no configuration** - it auto-detects everything!
- - needs **zero maintenance**!
- - has **zero dependencies** - it is even its own web server!
- - **scales to infinity**, requiring minimal central resources!
+ - **Stunning interactive bootstrap dashboards**<br/>
+ mouse and touch friendly, in 2 themes: dark, light
+
+ - **Blazingly fast**<br/>
+ responds to all queries in less than 0.5 ms per metric,
+ even on low-end hardware (such as a raspberry pi 1)
+
+ - **Highly efficient data collection**<br/>
+ collects thousands of metrics per server per second,
+ with just 1% CPU utilization of a single core, a few MB or RAM and no disk I/O at all
+
+ - **Sophisticated alarming**<br/>
+ supports dynamic thresholds, hysteresis, alarm templates,
+ multiple role-based notification methods (such as slack.com, pushover.net, telegram.org, email)
+
+ - **Extensible**<br/>
+ you can monitor anything you can get a metric for,
+ using its Plugin API (anything can be a netdata plugin,
+ BASH, python, perl, node.js, java, Go, ruby, etc)
+
+ - **Embeddable**<br/>
+ it can run anywhere a Linux kernel runs (even IoT)
+ and its charts can be embedded on your web pages too
+
+ - **Zero configuration**<br/>
+ auto-detects everything, it can collect up to 5000 metrics
+ per server out of the box
+
+ - **Zero dependencies**<br/>
+ it is even its own web server, for its static web files and its web API
+
+ - **Zero maintenance**<br/>
+ you just run it, it does the rest
+
+ - **Custom dashboards**<br/>
+ that can be built using simple HTML (no javascript necessary)
+
+ - **scales to infinity**<br/>
+ requiring minimal central resources
![netdata](https://cloud.githubusercontent.com/assets/2662304/14092712/93b039ea-f551-11e5-822c-beadbf2b2a2e.gif)
---
-## Features
-
-This is what you get:
-
-- **Stunning bootstrap dashboards**, out of the box (theme-able: dark, light)
-- **Blazingly fast** and **super efficient**, mostly written in C (for default installations, expect just 2% of a single core CPU usage and a few MB of RAM)
-- **Zero configuration** - you just install it and it auto-detects everything
-- **Zero dependencies**, it is even its own web server for its static web files and its web API
-- **Zero maintenance**, you just run it, it does the rest
-- **Custom dashboards** that can be built using simple HTML (no javascript necessary)
-- **Extensible**, you can monitor anything you can get a metric for, using its Plugin API (anything can be a netdata plugin - from BASH to python and node.js, so you can easily monitor any application, any API)
-- **Embeddable**, it can run anywhere a Linux kernel runs (even IoT) and its charts can be embedded on your web pages too
-- **Powerful alarms and notifications**, it can send alarms as email, slack.com messages, pushover.net mobile push notifications, telegram.org messages, and more.
+## What does it monitor?
----
+netdata monitors several thousands of metrics per device.
+All these metrics are collected and visualized in real-time.
-## What does it monitor?
+> _Almost all metrics are auto-detected, without any configuration._
-This is what it currently monitors (most with zero configuration):
+This is a list of what it currently monitors:
-- **CPU usage, interrupts, softirqs and frequency** (total and per core)
+- **CPU**<br/>
+ usage, interrupts, softirqs, frequency, total and per core
-- **RAM, swap and kernel memory usage** (including KSM and kernel memory deduper)
+- **Memory**<br/>
+ RAM, swap and kernel memory usage, including KSM the kernel memory deduper
-- **Disks** (per disk: I/O, operations, backlog, utilization, space, etc)
+- **Disks**<br/>
+ per disk: I/O, operations, backlog, utilization, space
![sda](https://cloud.githubusercontent.com/assets/2662304/14093195/c882bbf4-f554-11e5-8863-1788d643d2c0.gif)
-- **Network interfaces** (per interface: bandwidth, packets, errors, drops, etc)
+- **Network interfaces**<br/>
+ per interface: bandwidth, packets, errors, drops
![dsl0](https://cloud.githubusercontent.com/assets/2662304/14093128/4d566494-f554-11e5-8ee4-5392e0ac51f0.gif)
-- **IPv4 networking** (bandwidth, packets, errors, fragments, tcp: connections, packets, errors, handshake, udp: packets, errors, broadcast: bandwidth, packets, multicast: bandwidth, packets)
+- **IPv4 networking**<br/>
+ bandwidth, packets, errors, fragments,
+ tcp: connections, packets, errors, handshake,
+ udp: packets, errors,
+ broadcast: bandwidth, packets,
+ multicast: bandwidth, packets
-- **IPv6 networking** (bandwidth, packets, errors, fragments, ECT, udp: packets, errors, udplite: packets, errors, broadcast: bandwidth, multicast: bandwidth, packets, icmp: messages, errors, echos, router, neighbor, MLDv2, group membership, break down by type)
+- **IPv6 networking**<br/>
+ bandwidth, packets, errors, fragments, ECT,
+ udp: packets, errors,
+ udplite: packets, errors,
+ broadcast: bandwidth,
+ multicast: bandwidth, packets,
+ icmp: messages, errors, echos, router, neighbor, MLDv2, group membership,
+ break down by type
-- **netfilter / iptables Linux firewall** (connections, connection tracker events, errors, etc)
+- **netfilter / iptables Linux firewall**<br/>
+ connections, connection tracker events, errors
-- **Linux DDoS protection** (SYNPROXY metrics)
+- **Linux DDoS protection**<br/>
+ SYNPROXY metrics
-- **Processes** (running, blocked, forks, active, etc)
+- **Processes**<br/>
+ running, blocked, forks, active
-- **Entropy** (random numbers pool, using in cryptography)
+- **Entropy**<br/>
+ random numbers pool, using in cryptography
-- **NFS file servers and clients**, v2, v3, v4 (I/O, cache, read ahead, RPC calls)
+- **NFS file servers and clients**<br/>
+ NFS v2, v3, v4: I/O, cache, read ahead, RPC calls
-- **Network QoS** (yes, the only tool that visualizes network `tc` classes in realtime)
+- **Network QoS**<br/>
+ the only tool that visualizes network `tc` classes in realtime
![qos-tc-classes](https://cloud.githubusercontent.com/assets/2662304/14093004/68966020-f553-11e5-98fe-ffee2086fafd.gif)
-- **Linux Control Groups** (containers), systemd, lxc, docker, etc
+- **Linux Control Groups**<br/>
+ containers: systemd, lxc, docker
-- **Applications**, by grouping the process tree (CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets, etc)
+- **Applications**<br/>
+ by grouping the process tree and reporting CPU, memory, disk reads,
+ disk writes, swap, threads, pipes, sockets - per group
![apps](https://cloud.githubusercontent.com/assets/2662304/14093565/67c4002c-f557-11e5-86bd-0154f5135def.gif)
-- **Users and User Groups resource usage**, by summarizing the process tree per user and group (CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets, etc)
+- **Users and User Groups resource usage**<br/>
+ by summarizing the process tree per user and group,
+ reporting: CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets
-- **Apache web servers** mod-status (v2.2, v2.4) and cache log statistics (multiple servers - compatible with lighttpd too)
+- **Apache and lighttpd web servers**<br/>
+ `mod-status` (v2.2, v2.4) and cache log statistics, for multiple servers
-- **Nginx web servers** stub-status (multiple servers)
+- **Nginx web servers**<br/>
+ `stub-status`, for multiple servers
-- **mySQL databases** (multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues, tmp operations, connections, binlog metrics, threads, innodb metrics, etc)
+- **Tomcat**<br/>
+ accesses, threads, free memory, volume
-- **Redis databases** (multiple servers, each showing: operations, hit rate, memory, keys, clients, slaves)
+- **mySQL databases**<br/>
+ multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues,
+ tmp operations, connections, binlog metrics, threads, innodb metrics, and more
-- **memcached databases** (multiple servers, each showing: bandwidth, connections, items, etc)
+- **Redis databases**<br/>
+ multiple servers, each showing: operations, hit rate, memory, keys, clients, slaves
-- **ISC Bind name servers** (multiple servers, each showing: clients, requests, queries, updates, failures and several per view metrics)
+- **memcached databases**<br/>
+ multiple servers, each showing: bandwidth, connections, items
-- **Postfix email servers** message queue (entries, size)
+- **ISC Bind name servers**<br/>
+ multiple servers, each showing: clients, requests, queries, updates, failures and several per view metrics
-- **exim email servers** message queue (emails queued)
+- **Postfix email servers**<br/>
+ message queue (entries, size)
-- **IPFS** (Bandwidth, Peers)
+- **exim email servers**<br/>
+ message queue (emails queued)
-- **Squid proxy servers** (multiple servers, each showing: clients bandwidth and requests, servers bandwidth and requests)
+- **IPFS**<br/>
+ bandwidth, peers
-- **Hardware sensors** (temperature, voltage, fans, power, humidity, etc)
+- **Squid proxy servers**<br/>
+ multiple servers, each showing: clients bandwidth and requests, servers bandwidth and requests
-- **NUT and APC UPSes** (load, charge, battery voltage, temperature, utility metrics, output metrics)
+- **Hardware sensors**<br/>
+ temperature, voltage, fans, power, humidity
-- **Tomcat** (accesses, threads, free memory, volume)
+- **NUT and APC UPSes**<br/>
+ load, charge, battery voltage, temperature, utility metrics, output metrics
-- **PHP-FPM** (multiple instances, each reporting connections, requests, performance)
+- **PHP-FPM**<br/>
+ multiple instances, each reporting connections, requests, performance
-- **hddtemp** (disk temperatures)
+- **hddtemp**<br/>
+ disk temperatures
-- **SNMP devices** can be monitored too (although you will need to configure these)
+- **SNMP devices**<br/>
+ can be monitored too (although you will need to configure these)
And you can extend it, by writing plugins that collect data from any source, using any computer language.