README.md

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  10
  11
  12 # netdata
  13
  14
  15 > Aug 21st, 2016: Netdata got **[health monitoring](https://github.com/firehol/netdata/wiki/health-monitoring)** - alarms
  16
  17 ---
  18
  19 > May 16th, 2016
  20 >
  21 > [netdata v1.2.0 released!](https://github.com/firehol/netdata/releases)
  22 >
  23 > - 30% faster!
  24 > - **[netdata registry](https://github.com/firehol/netdata/wiki/mynetdata-menu-item)**, the first step towards scaling out performance monitoring!
  25 > - real-time Linux Containers monitoring!
  26 > - dozens of additional new features, optimizations, bug-fixes
  27
  28 ---
  29
  30 May 1st, 2016
  31
  32 ##### 320.000+ views, 92.000+ visitors, 28.500+ downloads, 11.000+ github stars, 700+ forks, 1 month!
  33
  34 And it still runs with 600+ git downloads... per day!
  35
  36 **[Check what our users say about netdata](https://github.com/firehol/netdata/issues/148)**.
  37
  38 ---
  39
  40 **Real-time performance monitoring, done right!**
  41
  42 This is the default dashboard of **netdata**:
  43
  44  - real-time, per second updates, snappy refreshes!
  45  - 300+ charts out of the box, 2000+ metrics monitored!
  46  - zero configuration, zero maintenance, zero dependencies!
  47
  48 Live demo: [http://netdata.firehol.org](http://netdata.firehol.org)
  49
  50 ![netdata](https://cloud.githubusercontent.com/assets/2662304/14092712/93b039ea-f551-11e5-822c-beadbf2b2a2e.gif)
  51
  52 ---
  53
  54 ## Features
  55
  56 **netdata** is a highly optimized Linux daemon providing **real-time performance monitoring for Linux systems, Applications, SNMP devices, over the web**!
  57
  58 It tries to visualize the **truth of now**, in its **greatest detail**, so that you can get insights of what is happening now and what just happened, on your systems and applications.
  59
  60 This is what you get:
  61
  62 - **Stunning bootstrap dashboards**, out of the box (themable: dark, light)
  63 - **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)
  64 - **Zero configuration** - you just install it and it autodetects everything
  65 - **Zero dependencies**, it is its own web server for its static web files and its web API
  66 - **Zero maintenance**, you just run it, it does the rest
  67 - **Custom dashboards** that can be built using simple HTML (no javascript necessary)
  68 - **Extensible**, you can monitor anything you can get a metric for, using its Plugin API (anything can be a netdata plugin - from BASH to node.js, so you can easily monitor any application, any API)
  69 - **Embeddable**, it can run anywhere a Linux kernel runs and its charts can be embedded on your web pages too
  70
  71 ---
  72
  73 ## What does it monitor?
  74
  75 This is what it currently monitors (most with zero configuration):
  76
  77 - **CPU usage, interrupts, softirqs and frequency** (total and per core)
  78
  79 - **RAM, swap and kernel memory usage** (including KSM and kernel memory deduper)
  80
  81 - **Disks** (per disk: I/O, operations, backlog, utilization, space, etc)
  82
  83    ![sda](https://cloud.githubusercontent.com/assets/2662304/14093195/c882bbf4-f554-11e5-8863-1788d643d2c0.gif)
  84
  85 - **Network interfaces** (per interface: bandwidth, packets, errors, drops, etc)
  86
  87    ![dsl0](https://cloud.githubusercontent.com/assets/2662304/14093128/4d566494-f554-11e5-8ee4-5392e0ac51f0.gif)
  88
  89 - **IPv4 networking** (bandwidth, packets, errors, fragments, tcp: connections, packets, errors, handshake, udp: packets, errors, broadcast: bandwidth, packets, multicast: bandwidth, packets)
  90
  91 - **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)
  92
  93 - **netfilter / iptables Linux firewall** (connections, connection tracker events, errors, etc)
  94
  95 - **Linux DDoS protection** (SYNPROXY metrics)
  96
  97 - **Processes** (running, blocked, forks, active, etc)
  98
  99 - **Entropy** (random numbers pool, using in cryptography)
 100
 101 - **NFS file servers**, v2, v3, v4 (I/O, cache, read ahead, RPC calls)
 102
 103 - **Network QoS** (yes, the only tool that visualizes network `tc` classes in realtime)
 104
 105    ![qos-tc-classes](https://cloud.githubusercontent.com/assets/2662304/14093004/68966020-f553-11e5-98fe-ffee2086fafd.gif)
 106
 107 - **Linux Control Groups** (containers), systemd, lxc, docker, etc
 108
 109 - **Applications**, by grouping the process tree (CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets, etc)
 110
 111    ![apps](https://cloud.githubusercontent.com/assets/2662304/14093565/67c4002c-f557-11e5-86bd-0154f5135def.gif)
 112
 113 - **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)
 114
 115 - **Apache web server** mod-status (v2.2, v2.4) and cache log statistics (multiple servers)
 116
 117 - **Nginx web server** stub-status (multiple servers)
 118
 119 - **mySQL databases** (multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues, tmp operations, connections, binlog metrics, threads, innodb metrics, etc)
 120
 121 - **Redis databases** (multiple servers, each showing: operations, hit rate, memory, keys, clients, slaves)
 122
 123 - **memcached databases** (multiple servers, each showing: bandwidth, connections, items, etc)
 124
 125 - **ISC Bind name server** (multiple servers, each showing: clients, requests, queries, updates, failures and several per view metrics)
 126
 127 - **Postfix email server** message queue (entries, size)
 128
 129 - **exim email server** message queue (emails queued)
 130
 131 - **IPFS** (Bandwidth, Peers)
 132
 133 - **Squid proxy server** (multiple servers, each showing: clients bandwidth and requests, servers bandwidth and requests)
 134
 135 - **Hardware sensors** (temperature, voltage, fans, power, humidity, etc)
 136
 137 - **NUT UPSes** (load, charge, battery voltage, temperature, utility metrics, output metrics)
 138
 139 - **Tomcat** (accesses, threads, free memory, volume)
 140
 141 - **PHP-FPM** (multiple instances, each reporting connections, requests, performance)
 142
 143 - **hddtemp** (disk temperatures)
 144
 145 - **SNMP devices** can be monitored too (although you will need to configure these)
 146
 147 And you can extend it, by writing plugins that collect data from any source, using any computer language.
 148
 149 ---
 150
 151 ## Still not convinced?
 152
 153 Read **[Why netdata?](https://github.com/firehol/netdata/wiki/Why-netdata%3F)**
 154
 155 ---
 156
 157 ## Installation
 158
 159 Use our **[automatic installer](https://github.com/firehol/netdata/wiki/Installation)** to build and install it on your system
 160
 161 It should run on **any Linux** system. It has been tested on:
 162
 163 - Gentoo
 164 - Arch Linux
 165 - Ubuntu / Debian
 166 - CentOS
 167 - Fedora
 168 - RedHat Enterprise Linux
 169 - SUSE
 170 - Alpine Linux
 171 - PLD Linux
 172
 173 ---
 174
 175 ## Documentation
 176
 177 Check the **[netdata wiki](https://github.com/firehol/netdata/wiki)**.