netdata

New to netdata? Here is a live demo: http://my-netdata.io

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 and database servers), using modern interactive web dashboards.

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

Since May 16th 2016 (the date the global public netdata registry was released):

in the last 24 hours:

News

Netdata is featured at GitHub's State Of The Octoverse 2016

Jan 22nd, 2017 - netdata v1.5.0 released!

netdata now runs on FreeBSD and MacOS
netdata now supports Graphite, OpenTSDB, Prometheus and compatible backends
netdata now monitors systemd Services
new plugins: fping, postgres, varnish, elasticsearch, haproxy, freeradius, mdstat, ISC dhcpd, fail2ban, openvpn, NUMA memory, CPU Idle States, gunicorn, ECC memory errors, IPC semaphores, uptime
improved plugins: netfilter conntrack, mysql/mariadb, ipfs, cpufreq, hddtemp, sensors, nginx, nginx_log, phpfpm, redis, dovecot, containers and cgroups, disk space, apps.plugin, tc (QoS) and almost all internal plugins (memory, IPv4 and IPv6, network interfaces, QoS, etc)
dozens of new and improved alarms (including performance monitoring alarms for mysql)
new alarm notifications: messagebird.com, pagerduty.com, pushbullet.com, twilio.com, hipchat, kafka
dozens more improvements and performance optimizations

Features

Stunning interactive bootstrap dashboards
mouse and touch friendly, in 2 themes: dark, light
Amazingly fast
responds to all queries in less than 0.5 ms per metric, even on low-end hardware
Highly efficient
collects thousands of metrics per server per second, with just 1% CPU utilization of a single core, a few MB of RAM and no disk I/O at all
Sophisticated alarming
supports dynamic thresholds, hysteresis, alarm templates, multiple role-based notification methods (such as email, slack.com, pushover.net, pushbullet.com telegram.org, twilio.com, messagebird.com)
Extensible
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
it can run anywhere a Linux kernel runs (even IoT) and its charts can be embedded on your web pages too
Customizable
custom dashboards can be built using simple HTML (no javascript necessary)
Zero configuration
auto-detects everything, it can collect up to 5000 metrics per server out of the box
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
scales to infinity
requiring minimal central resources
back-ends supported
can archive its metrics on graphite or opentsdb, in the same or lower detail (lower: to prevent it from congesting these servers due to the amount of data collected)

What does it monitor?

netdata monitors several thousands of metrics per device. All these metrics are collected and visualized in real-time.

Almost all metrics are auto-detected, without any configuration.

This is a list of what it currently monitors:

CPU
usage, interrupts, softirqs, frequency, total and per core
Memory
RAM, swap and kernel memory usage, KSM (Kernel Samepage Merging), NUMA
Disks
per disk: I/O, operations, backlog, utilization, space
Network interfaces
per interface: bandwidth, packets, errors, drops
IPv4 networking
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
Interprocess Communication - IPC
such as semaphores and semaphores arrays
netfilter / iptables Linux firewall
connections, connection tracker events, errors
Linux DDoS protection
SYNPROXY metrics
fping latencies
for any number of hosts, showing latency, packets and packet loss
Processes
running, blocked, forks, active
Entropy
random numbers pool, using in cryptography
NFS file servers and clients
NFS v2, v3, v4: I/O, cache, read ahead, RPC calls
Network QoS
the only tool that visualizes network tc classes in realtime
Linux Control Groups
containers: systemd, lxc, docker
Applications
by grouping the process tree and reporting CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets - per group
Users and User Groups resource usage
by summarizing the process tree per user and group, reporting: CPU, memory, disk reads, disk writes, swap, threads, pipes, sockets
Apache and lighttpd web servers
mod-status (v2.2, v2.4) and cache log statistics, for multiple servers
Nginx web servers
stub-status, for multiple servers
Tomcat
accesses, threads, free memory, volume
mySQL databases
multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues, tmp operations, connections, binlog metrics, threads, innodb metrics, and more
Postgres databases
multiple servers, each showing: per database statistics (connections, tuples read - written - returned, transactions, locks), backend processes, indexes, tables, write ahead, background writer and more
Redis databases
multiple servers, each showing: operations, hit rate, memory, keys, clients, slaves
memcached databases
multiple servers, each showing: bandwidth, connections, items
ISC Bind name servers
multiple servers, each showing: clients, requests, queries, updates, failures and several per view metrics
Postfix email servers
message queue (entries, size)
exim email servers
message queue (emails queued)
Dovecot POP3/IMAP servers
IPFS
bandwidth, peers
Squid proxy servers
multiple servers, each showing: clients bandwidth and requests, servers bandwidth and requests
Hardware sensors
temperature, voltage, fans, power, humidity
NUT and APC UPSes
load, charge, battery voltage, temperature, utility metrics, output metrics
PHP-FPM
multiple instances, each reporting connections, requests, performance
hddtemp
disk temperatures
SNMP devices
can be monitored too (although you will need to configure these)