How we took our server side application to the cloud and liked what we got

HOW WE TOOK OUR SERVER-SIDE JAVA APPLICATION TO THE CLOUD

and liked what we got

WHO’S TALKING?@

jbaruchgithub.com/jbaruch

linkd.in/jbaruch

Developer who?

WHAT FROG?

One more thing!

. /1bit ly bDaHiD

JUC Israel - July 16, 2014

First things First.

Poll time!I use binary repository:

Naturally, Artifactory!

Naturally, Artifactory! Shame on me,

but still Nexus…

but still Nexus… I don’t like features, I use Archiva

but still Nexus… I don’t like features, I use Archiva I am a caveman, binary what?

In the beginning…

Yet Another Java Server App

Rabbit?!

Checksum storage

Append Only, GC-ed

OMG, THEY KILLED KENNY JACKRABBIT

YOU, BASTARDS?

Artifactory 3 – 10 times faster!(Not bastards)

Moving Forward

Artifactory SaaS

What you like about it:

What you like about it:– No need to maintain the server

What you like about it:– No need to maintain the server– Fanatic tech support

What you like about it:– No need to maintain the server– Fanatic tech support– Always up to date!

What you like about it:– No need to maintain the server– Fanatic tech support– Always up to date!What you don’t like about it:

What you like about it:– No need to maintain the server– Fanatic tech support– Always up to date!What you don’t like about it:– Can’t deploy your own plugins!

Artifactory SaaS

Sh.t-load of artifacts!

Terabytes.

FEBRUARY

Terabytes.

FEBRUARYMAY

Terabytes.

FEBRUARYMAY

AUGUST

Terabytes.

AUGUST

JANUARY

Bring Them On!

To The Cloud

Bullshit Bingo

Much ado about *aaS

* As A Service

* As A ServiceSelf-service

* As A ServiceSelf-service Multi-tenancy

Controversial example ahead!You might find it inaccurate. If you are annoyed by that

feeling,try to remember – it’s just an

example.

GaaE: Google as an Example

Product Self Service

Multi-tenant

Gmail Not *aaS, web-app

Multi-tenant

Google Apps SaaS

Multi-tenant

Google Apps SaaS

Google App Engine

Multi-tenant

Google Apps SaaS

Google App Engine

Google Compute Engine

AaaE: Amazon as an Example

Multi-tenant

Amazon store Not *aaS, web-app

Multi-tenant

aStore SaaS

Multi-tenant

aStore SaaS

Amazon Elastic Beantalk

Multi-tenant

aStore SaaS

Amazon Elastic Beantalk

Amazon Elastic Cloud

SaaS pains

Multi-tenancy

Looks good! When to expect?

ExtrapolateThis

Given:Release Java 7 07/2011Release Java 8 12/2012

Find:Release Java 9?

Java 8: 12/2012

Java 8: 12/2012-

Java 7: 07/2011

Java 8: 12/2012-

Java 7: 07/2011=

15 Months cycle

Java 8: 12/2012-

Java 7: 07/2011=

15 Months cycle

conclusion: Java 9: 05/2013

Java 8: 12/2012-

Java 7: 07/2011=

15 Months cycle

conclusion: Java 9: 05/2013

It’s almost a year ago!

Oh, wait…Java 8 is not out yet!

Observation: When Mark writes about trains it means release delay

Here you go:

Java 7: 07/2011

Java 7: 07/2011+ 24 Months =

Java 8: 07/2013

You wish!

Java 7: 07/2011+ 24 Months =

Java 8: 07/2013

Java 7: 07/2011+ 24 Months =

Java 8: 01/2014

Whatever mark says

Java 7: 07/2011+ 24 Months =

Java 8: 01/2014+ 24 Months =

Java 9: 01/2016

Whatever mark says

You think this is it?

Java 7: 07/2011+ 24 Months =

Java 8: 03/2014

Whatever mark says

Java 7: 07/2011+ 24 Months =

Java 8: 03/2014+ 24 Months =

Whatever mark says

Java 7: 07/2011+ 24 Months =

Java 8: 03/2014+ 24 Months =

Java 9: 03/2016

Whatever mark says

Java 7: 07/2011+ 24 Months =

Java 8: 03/2014+ 24 Months =

Java 9: 03/2016(if no more train blog posts)

Whatever mark says

Java 7: 07/2011+ 24 месяца =

Java 8: 03/2014+ 24 месяца =

Java 9: 03/2016(Если не будет больше постов про поезд)

Сколько Марк скажет

DAMN, THAT’S HALF A YEAR

LATER THAN HOOVERBOARDS!

THANK YOU,

WE’LL MANAGE.

Multi-tenancy typesMulti-tenancy Type

Data Separation

Application Separation

Data Separation

Application Separation

Process Separation

GaaE for Multi Tenancy types

Product Multi-tenancy Type

Google Apps Data Separation

Google App Engine Application Separation

Google Compute Engine

Process Separation

Strategy Pros ConsSeparating data

Separating application

Separating processes

Let’s compare!

Strategy Pros ConsSeparating data Normal Java Application

Let’s compare!

Strategy Pros ConsSeparating data Normal Java Application Manual state

separation Complicated and

critical schema

Let’s compare!

critical schema

Let’s compare!

critical schema

No shared state Simple transition from

existing

Let’s compare!

critical schema

existing

JVM per tenant!

Let’s compare!

critical schema

existing

JVM per tenant!

Let’s compare!

critical schema

existing

JVM per tenant!

Let’s compare!

critical schema

existing

JVM per tenant!

Let’s compare!

critical schema

existing

Stay tuned…

existing

JVM per tenant!

Let’s compare!

Separate WARs: Tomcat Root

┌── lib├── webapps│ ├── customer-name│ ├── other-customer-name│ └── many other customers└── other dirs (bin, conf, log, etc)

WARs of the tenants

Separate WARs

That was the PermGen.

We love our toys

Artifactory-3.0.1.war\webapp\WEB-INF\lib$du –m51 .

51 MB of toys…

THE AMOUNT OF CLASSES

IS TOO DAMN HIGH!

To the common ClassLoader!

Will it work?_________

Will it work?

‹Object state_________

Will it work?

‹Object state‹Static state

_________

“Static State Quest I”(Sierra, who else?)

Spring Framework

The EvilApp. Context Holder Pattern

The Evil App. Context Holder Pattern

public class AppCtxHolder implements ApplicationContextAware {private static ApplicationContext ctx;

public AppCtxHolder() { }

public void setApplicationContext(ApplicationContext applicationContext) {ctx = applicationContext;

public static ApplicationContext getApplicationContext() {return ctx;

Apache Wicket

We love Wicket, cause it allows

people who hate UI development to develop a UI,

which people don’t hate

Apache Wicket

Logger

CATS Software

Jackrabbit

Heap-wide Caches

Don’t actually have to read this

Tomcat Root – Where are the JARs?┌── lib├── webapps│ ├── customer-name│ │ ├── favicon.ico│ │ ├── META-INF│ │ └── WEB-INF│ │ ├── web.xml│ │ └── classes│ │ └── DUMMY.TXT│ ├── other-customer-name│ │ ├── favicon.ico│ │ │ └── META-INF│ │ └── WEB-INF│ └── many other customers└── other dirs (bin, conf, log, etc)

Tenant WAR

Tomcat Root – Where are the JARs?┌── lib├── webapps│ ├── customer-name│ │ ├── favicon.ico│ │ ├── META-INF│ │ └── WEB-INF│ │ ├── web.xml│ │ └── classes│ │ └── DUMMY.TXT│ ├── other-customer-name│ │ ├── favicon.ico│ │ │ └── META-INF│ │ └── WEB-INF│ └── many other customers└── other dirs (bin, conf, log, etc)

Tenant WAR

Look ma, no JARs, nor classes!

Tomcat Root – Global lib folder

┌── lib│ ├── artifactory│ │ ├── artifactory-*.jar│ │ ├── jackrabbit-core-jfrog-2.2.8c.jar│ │ ├── spring-core-3.1.1.RELEASE.jar│ │ ├── wicket-core-1.5.3.jar│ │ └── other jars│ ├── catalina.jar│ ├── servlet-api.jar│ └── other jars├── webapps└── other dirs (bin, conf, log, etc)

Global lib

Artifactory JARs

The toys

Global lib

Artifactory JARs

The toys

Global lib

Artifactory JARs

Tenants WARs (no JAR-ов)

PaaS or IaaS?

Self-Service?

Prevent the Fork!

The process

Artifactory is built with Artifactory!

The Process

It’s all about right tools

Also right tools

The Paradigm…

Now we do it the other way around

Actually, now we do it the right way!

And we love what we got!

NO, THANK YOU!

How we took our server side application to the cloud and liked what we got

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