Tech Talk: Getting to Know Node.js

Tech Talk: Getting to Know Node.js

Gabriel Underwood

DevOps: Agile Ops

CA Technologies

Director, Software Engineering

DO5T43T

@GabrielUnderwoo

#CAWorld

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Abstract Enterprise adoption of Node.js is on the rise because it is great for mobile applications and can accelerate time to market. That and its event-driven architecture is ideal for any real-time Web application where throughput and scalability are critical. What should ops teams know before a Node.js application is deployed into production? What are the operational challenges that come with Node.js applications and how are they different than Java™ applications? Join this session for a quick intro into what Node.js is, how it works differently+E5 and what business problems it solves.

Gabriel Underwood

CA Technologies

Director, Software Engineering


Agenda

WHAT IS NODE.JS?

WHY HAS IT BECOME POPULAR?

INSIDE NODE.JS

WHAT ARE THE NEW OPS CHALLENGES?

HOW CA APM CAN HELP

1

2

3

4

5

6


What is Node.js?


Fills a specific growing need

10K User Problem– Huge number of simultaneous connections with high throughput

– Non-blocking, event-driven IO

Scalable intermediary between device and data

Glue to assemble other data sources– Lightweight and efficient for distributed data

Lets UI developers not have to wait for Java backend team…


SilverApigee

Codefresh

DigitalOcean

Fidelity Investments

Groupon

nearForm

NPM

SAP

Sauce Labs

Strongloop

YLD!

Platinum

Famo.us

IBM

Intel

Joyent

Microsoft

PayPal

Redhat

Gold

GoDaddy

Modulus

Nodesource

Node.js Foundation


Why is Node.js Popular?


Why is Node.js Popular?


End to End Visibility

WAN Router Firewall Switch Web Servers

Load Balancer Portal

SAP

CRM

REST/SOAP

Webservices

3rd Party Applications

Databases

Service Bus

Database

Mainframe

Why is Node.js Popular? Enterprise Applications don’t look like this anymore…

App Server


End to End Visibility

WAN Router Firewall Switch Web Servers

Load Balancer

CRM

Why is Node.js Popular? Native Mobile Clients, Single Page Applications, Microservices!


Node Event Loop


Common Architectures & Deployments

REST APIs used by a separate UI tier

Often Stateless!– User session state held in a separate cache

Many stateless processes share a common stateful backend

Lots of processes per machine


Framework Diversity

VS

Java JEE Spring

Microsoft .NETASP.NET ASP.NET MVC

ADO.NET

Express

Loopback

Koa

Hapi

Sails

…


Operations Challenges

Coding Problems

Tooling

Deployment Surprises

Cultural attitudes towards change control


Leaks!


Blocking

Time

Long Task

Long Task Completes

Next task

Delayed!

Node.js


Tooling


End to End VisibilityDeployment Surprise - Shared Resource Contention

Stateless Processes

Common Shared State(DB, MQ,Cache)

App A App B App C


Cultural Changes

Systems Programmers

Extensive Change Control

Big infrequent releases

“Beta” program, near end

Test automation culture

Web Developers

Commit into Prod(!)

Deploy daily

A/B testing in prod, always

Test in the browser culture


Node.js is another tool

Event Loop

JavaScript Simple, but lacking…

Perfect for I/O, bad for blocking

Single-threaded MultiCore

Asynchronous Callback Hell


SummaryA Few Words to Review

Big Changes with Node in Datacenter

Node in the datacanter brings operational challenges with new tools and technologies but also of cultural changes involving “web development speeds” into traditional application management. Complex, rapidly changing deployments are the standard.


Recommended Sessions

SESSION # TITLE DATE/TIME

DO5X237L:Hands-On Lab: Managing and Monitoring Node.js Made

Easy with CA Application Performance Management11/19/2015 at 2:00 pm

DO5X194SMonitor Microservices, Containers, Cloud Foundry and

Node with CA Application Performance Management11/18/2015 at 4:30 pm

DO5X193S

Customize CA Application Performance Management

with Tips for Using the CA Application Performance

Management Open APIs

11/19/2015 at 4:30 pm


Must See Demos

Application Performance Management and DevOps, featuring APM use in preproduction scenarios

Application Performance Management

Theater 5

Application Performance Management, Modern Monitoring, featuring the new APM Team Center


Theater 5

Ensuring a “5 star” mobile app experience with CA Mobile App Analytics

Mobile App Analytics

Theater 5

Unified Monitoring: APM Integrations including UIM


Theater 5


Q & A


For More Information

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http://cainc.to/Nv2VOe

CA World ’15

http://cainc.to/Nv2VOe

http://bit.ly/1wbjjqX

Technology

Tech Talk: Getting to Know Node.js