Statsd introduction

•

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Rick Chang

StatsD is a front-end proxy to send calcuated time series data to Graphite/Carbon server.

Voyages

Agenda
History!
Architecture!
Concept!
Demo!
Implementation

History
StatsD is a front-end proxy for the Graphite/
Carbon metrics server.!
Originally written by Etsy’s Erik Kastner!
The first idea from Flickr by Cal Henderson!
Implemented in Node

StatsD in many languages
Flickr’s StatsD: Perl. The real original statsd from 2008.!
Etsy’s statsd: Node.js. The new statsd.!
petef-statsd: Ruby. Supports AMQP.!
quasor/statsd: Ruby. can send data to graphite or mongoDB!
py-statsd: Python (including python client code).!
statsd.scala: Scala. Sends data to Ganglia instead of Graphite. Different messaging
protocol, uses JSON.!
statsd-c: C. compatible with original etsy statsd!
bucky: Python. A small server for collecting and translating metrics for Graphite.
It can current collect metric data from CollectD daemons and from StatsD clients.
Reference: http://www.joemiller.me/2011/09/21/list-of-statsd-server-implementations/

Architecture
Your App send data to StatsD by UDP port
8125!
StatsD send data to Carbon by TCP port 2003

Metric Types
Count [key]:[value]|c!
sample.counter:1|c!
At each flush the current count is sent and reset to 0!
Sampling!
sample.counter:1|c@0.1!
sent sampled every 1/10th of the time!
Scenarios!
View count
Reference: https://github.com/etsy/statsd/blob/master/docs/metric_types.md

Metric Types
Gauge [key]:[value]|g!
sample.gauge:75|g!
If the gauge is not updated at the next flush,
it will send the previous value.!
Scenarios!
Resource number

Metric Types
Set [key]:[value]|s!
sapmle.set:4219|s!
Counting unique occurrences of events between
flushes, using a Set to store all occurring events.!
Scenarios!
Unique user count

Metric Types
Timing [key]:[value]|ms!
sample.timer:10000|ms!
Scenarios!
To calculate the difference time!
Response time calculation

StatsD Server
Install Node before using npm!
Install StatsD!
npm install -g statsd!
Run StatsD!
node stats.js config.js

$config.js! Statsd UDP port: 8125! Backends: [ "./backends/ console", "./backends/ graphite" ] { graphitePort: 2003, graphiteHost: "graphite.hostname", address: "127.0.0.1", port: 8125, mgmt_address: "127.0.0.1", mgmt_port: 8126, backends: [ "./backends/ graphite" ], graphite: { legacyNamespace: false, globalPrefix: "stats", prefixCounter: "counters", prefixTimer: "timers", prefixGauge: "gauges", prefixSet: "sets" } } StatsD Server$

StatsD Clients
Node client!
https://github.com/msiebuhr/node-statsd-
client!
Java client!
https://github.com/tim-group/java-statsd-
client
Reference: https://github.com/etsy/statsd/wiki

Node Client
var SDC = require(‘statsd-client');!
Increment!
sdc.increment("sample.counter");!
sdc.increment("sample.mycounter", 10);!
Gauge!
sdc.gauge("sample.gauge", randomInteger(100));

Node Client
Set!
sdc.set("sapmle.set", randomInteger(10000));!
Timer!
timer = new Date();!
sdc.timing("sample.timer", timer);

Java Client
public
class
Foo
{
private
static
final
StatsDClient
statsd
=
new
NonBlockingStatsDClient("my.prefix",
"statsd-‐host",
8125);
!
public
static
final
void
main(String[]
args)
{
statsd.incrementCounter("bar");
statsd.recordGaugeValue("baz",
100);
statsd.recordExecutionTime("bag",
25);
statsd.recordSetEvent("qux",
"one");
}

CollectD vs StatsD?
CollectD: Collect system data!
StatsD: Collect application data

Further Items
StatsD Cluster Proxy!
Refactor 3DS FrontServer!
Collect response time during component
communication!
Collect data from GPS (Windows)

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Statsd introduction

1. StatsD Introduction Rick chang

2. Agenda History! Architecture! Concept! Demo! Implementation

3. History StatsD is a front-end proxy for the Graphite/ Carbon metrics server.! Originally written by Etsy’s Erik Kastner! The first idea from Flickr by Cal Henderson! Implemented in Node

4. StatsD in many languages Flickr’s StatsD: Perl. The real original statsd from 2008.! Etsy’s statsd: Node.js. The new statsd.! petef-statsd: Ruby. Supports AMQP.! quasor/statsd: Ruby. can send data to graphite or mongoDB! py-statsd: Python (including python client code).! statsd.scala: Scala. Sends data to Ganglia instead of Graphite. Different messaging protocol, uses JSON.! statsd-c: C. compatible with original etsy statsd! bucky: Python. A small server for collecting and translating metrics for Graphite. It can current collect metric data from CollectD daemons and from StatsD clients. Reference: http://www.joemiller.me/2011/09/21/list-of-statsd-server-implementations/

5. Architecture Your App send data to StatsD by UDP port 8125! StatsD send data to Carbon by TCP port 2003

6. Metric Types Count [key]:[value]|c! sample.counter:1|c! At each flush the current count is sent and reset to 0! Sampling! sample.counter:1|c@0.1! sent sampled every 1/10th of the time! Scenarios! View count Reference: https://github.com/etsy/statsd/blob/master/docs/metric_types.md

7. Metric Types Gauge [key]:[value]|g! sample.gauge:75|g! If the gauge is not updated at the next flush, it will send the previous value.! Scenarios! Resource number

8. Metric Types Set [key]:[value]|s! sapmle.set:4219|s! Counting unique occurrences of events between flushes, using a Set to store all occurring events.! Scenarios! Unique user count

9. Metric Types Timing [key]:[value]|ms! sample.timer:10000|ms! Scenarios! To calculate the difference time! Response time calculation

10. Demo

11. StatsD Server Install Node before using npm! Install StatsD! npm install -g statsd! Run StatsD! node stats.js config.js

12. config.js! Statsd UDP port: 8125! Backends: [ "./backends/ console", "./backends/ graphite" ] { graphitePort: 2003, graphiteHost: "graphite.hostname", address: "127.0.0.1", port: 8125, mgmt_address: "127.0.0.1", mgmt_port: 8126, backends: [ "./backends/ graphite" ], graphite: { legacyNamespace: false, globalPrefix: "stats", prefixCounter: "counters", prefixTimer: "timers", prefixGauge: "gauges", prefixSet: "sets" } } StatsD Server

13. StatsD Clients Node client! https://github.com/msiebuhr/node-statsdclient! Java client! https://github.com/tim-group/java-statsdclient Reference: https://github.com/etsy/statsd/wiki

14. Node Client var SDC = require(‘statsd-client');! Increment! sdc.increment("sample.counter");! sdc.increment("sample.mycounter", 10);! Gauge! sdc.gauge("sample.gauge", randomInteger(100));

15. Node Client Set! sdc.set("sapmle.set", randomInteger(10000));! Timer! timer = new Date();! sdc.timing("sample.timer", timer);

16. Java Client public class Foo { private static final StatsDClient statsd = new NonBlockingStatsDClient("my.prefix", "statsd-‐host", 8125); ! public static final void main(String[] args) { statsd.incrementCounter("bar"); statsd.recordGaugeValue("baz", 100); statsd.recordExecutionTime("bag", 25); statsd.recordSetEvent("qux", "one"); }

17. CollectD vs StatsD? CollectD: Collect system data! StatsD: Collect application data

18. Next?

19. Further Items StatsD Cluster Proxy! Refactor 3DS FrontServer! Collect response time during component communication! Collect data from GPS (Windows)

Statsd introduction

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