[Srijan Wednesday Webinars] NASA, Netflix, Tinder: Digital Transformation and Node.js

#SrijanWW | @srijan
NASA, Netflix, Tinder: Digital
Transformation & Node.js
Daniel Khan | Node.js Technology Lead | @dkhan
#SrijanWW | @srijan

We see ourselves
as a technology
company with a
banking license
“
Michael Corbat
PDG de Citi

Nike has many
more software
developers in
Oregon than
apparel designers.*
“
*from Dynatrace Perform 2015

Something Interesting is Happening…

Delivering a great cross-channel experience means
making sense out of prolific complexity
Outsourced
& Hosted
Services
GTS, BT
Legacy &
Back-Office
CICS, IMS, zOS, SOAP
3rd
Party Web
APIs
Social, Ad Serving,
Web Analytics, Search,
Maps, CDNs
SaaS
Salesforce.com,
Marketo, NetSiute
ServiceNow
Web and Mobile
Services
iOS, Android, MBaaS, Public
Cloud, eCommerce platform
Home-grown
Apps
Java, .NET, php, C++, node.js,
Enterprise
Applications
SAP, Sharepoint, Oracle
Business Suite, lync

#SrijanWW | @srijan
Node Foundation

Node.js is
what the Company Outlaws
use to finally introduce change

#SrijanWW | @srijan
JavaScript
• Easy to learn / easy to find developers
• No language boundaries between frontend and backend
• Easy to deploy and rollback
• Fast development cycles
PayPal built a web app side by side in Node and Java
and the Node version was:
• Built almost twice as fast with fewer people
• Written in 33% fewer lines of code
• Constructed with 40% fewer files
Source: https://www.paypal-engineering.com/2013/11/22/node-js-at-paypal/

#SrijanWW | @srijan
Performance
• Google V8 JavaScript Engine
• Non-Blocking I/O
• Asynchronous event based execution
Node.js shines in modern web-connected applications where it needs to
gather data from different sources, consolidate it and push it to many
clients in real-time.
Never(!) use it for CPU-bound tasks!

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Common Use Cases
• Authentification and Authorization
• Proxy
• Data Transformation
• Presentation (View Rendering)

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Node.js in a
Nutshell

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Node Standard Library
Node Bindings
V8
Thread
Pool
Event
Loop
JavaScript
C++
libuv

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Thread
Pool
Event
Loop
libuv

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DatabaseBrowser Java Application
Traditional approach

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DatabaseBrowser Node.js Application
IO Threads
Nodes approach

Bert Belder at Node Interactive Amsterdam

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process.memoryUsage()
{ rss: 4935680, heapTotal: 1826816, heapUsed: 650472 }

#SrijanWW | @srijan
theThing
someMethod()
longStr
unused()
originalThing
Closure Context
Reference
Root

http://bit.ly/1PvijIy
var snap =
profiler.takeSnapshot();
snap.serialize();
v8-profiler

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calculateFibonacci();

http://bit.ly/1jQMbBR
profiler.startProfiling(id);
profiler.stopProfiling(id);
v8-profiler

#SrijanWW | @srijan
NODE_ENV=productio
n
NODE_ENV=develop
ment
Blog: http://bit.ly/1flz0Xm

#SrijanWW | @srijan
NODE_ENV=productio
n
NODE_ENV=develop
ment
get(‘/routeA’, function(){})
get(‘/routeB’, function(){})
get(‘/routeC’, function(){})
get(‘/routeD’, function(){})
get(‘/routeE’, function(){})
get(‘/routeX’, function(){})
get(‘/^(route|router)/(.+)’, function(){})
HTTP GET /routeX
get(‘/routeX’, function(){})
O(n)

#SrijanWW | @srijan
Finding the
route

#SrijanWW | @srijan
1980 20001995 2005 2010 2015
Stakeholders

1000 RPS
Node.js
10 RPS
Ancient Legacy Backend

“No man is an
island”
or … We need a holistic view.

Browser Webserver Node Java Oracle

Meet Application Performance Monitoring

Complete Transaction Coverage
Browser / Native Mobile Java/
.NET
Performance
Warehouse
PurePath
Collector
Dynatrace
Server
Dynatrace
Client
Sessions
Store
Exported
Session
Offline
Session
Analysis
Web Server/
PHP/ Node.js
C++, VB,
ADK
CICS
Mainframe
z/OS
MQ/ESB
Database

#SrijanWW | @srijan
Coming Soon

#SrijanWW | @srijan
Q&A
Daniel Khan | Node.js Technology Lead | @dkhan | daniel.khan@dynatrace.com

[Srijan Wednesday Webinars] NASA, Netflix, Tinder: Digital Transformation and Node.js

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[Srijan Wednesday Webinars] NASA, Netflix, Tinder: Digital Transformation and Node.js