updated README.md
Costa Tsaousis (ktsaou) committed
Nov 20, 2016 at 19:37 UTC
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README.md
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**netdata** is a system for **distributed real-time performance and health monitoring**.
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It provides **unparalleled insights, in real-time**, of everything happening on the
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-system it runs (including applications such as web, or database servers), using
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+system it runs (including applications such as web and database servers), using
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**modern interactive web dashboards**.
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_netdata is **fast** and **efficient**, designed to permanently run on all systems
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- **Stunning interactive bootstrap dashboards**<br/>
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mouse and touch friendly, in 2 themes: dark, light
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- - **Blazingly fast**<br/>
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+ - **Amazingly fast**<br/>
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responds to all queries in less than 0.5 ms per metric,
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- even on low-end hardware (such as a raspberry pi 1)
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+ even on low-end hardware
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- - **Highly efficient data collection**<br/>
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+ - **Highly efficient**<br/>
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collects thousands of metrics per server per second,
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with just 1% CPU utilization of a single core, a few MB or RAM and no disk I/O at all
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- **Sophisticated alarming**<br/>
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supports dynamic thresholds, hysteresis, alarm templates,
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- multiple role-based notification methods (such as slack.com, pushover.net, telegram.org, email)
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+ multiple role-based notification methods (such as email, slack.com,
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+ pushover.net, pushbullet.com telegram.org, twilio.com)
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- **Extensible**<br/>
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you can monitor anything you can get a metric for,
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it can run anywhere a Linux kernel runs (even IoT)
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and its charts can be embedded on your web pages too
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+ - **Customizable**<br/>
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+ custom dashboards can be built using simple HTML (no javascript necessary)
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+
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- **Zero configuration**<br/>
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auto-detects everything, it can collect up to 5000 metrics
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per server out of the box
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- **Zero maintenance**<br/>
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you just run it, it does the rest
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- - **Custom dashboards**<br/>
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- that can be built using simple HTML (no javascript necessary)
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-
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- **scales to infinity**<br/>
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requiring minimal central resources
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+
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+ - **back-ends supported**<br/>
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+ can archive its metrics on `graphite` or `opentsdb`, in the same or lower detail
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+ (lower: to prevent it from congesting these servers due to the amount of data collected)
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icmp: messages, errors, echos, router, neighbor, MLDv2, group membership,
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break down by type
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+- **Interprocess Communication - IPC**<br/>
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+ such as semaphores and semaphores arrays
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+
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- **netfilter / iptables Linux firewall**<br/>
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connections, connection tracker events, errors
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- **Linux DDoS protection**<br/>
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SYNPROXY metrics
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+- **fping** latencies</br>
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+ for any number of hosts, showing latency, packets and packet loss
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+
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+ 
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+
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+
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- **Processes**<br/>
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running, blocked, forks, active
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multiple servers, each showing: bandwidth, queries/s, handlers, locks, issues,
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tmp operations, connections, binlog metrics, threads, innodb metrics, and more
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+- **Postres databases**<br/>
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+ multiple servers, each showing: per database statistics (connections, tuples
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+ read - written - returned, transactions, locks), backend processes, indexes,
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+ tables, write ahead, background writer and more
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+
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- **Redis databases**<br/>
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multiple servers, each showing: operations, hit rate, memory, keys, clients, slaves
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- **exim email servers**<br/>
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message queue (emails queued)
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+- **Dovecot** POP3/IMAP servers<br/>
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+
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- **IPFS**<br/>
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bandwidth, peers
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