windows azure - ericnel

Windows AzureDeveloping and deploying your first Cloud Service

Eric NelsonDeveloper & Platform GroupMicrosoft [email protected] http://geekswithblogs.net/IUpdateable http://twitter.com/ericnel

mailto:[email protected]

http://geekswithblogs.net/IUpdateable

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The plan...

Cloud101Microsoft and CloudIntroduce Azure Services Platform

Windows AzureWeb RoleWorker Role

Storage in the CloudSQL Data ServicesWindows Azure Storage

Table, Blob

Cloud?

Cloud Computing 101

Cloud ComputingRun/Store stuff in the cloud -

Somebody else has the data center/headaches

Infrastructure as a Service (IaaS)Example: Amazon Elastic Compute Cloud (EC2)

Platform as a Service (PaaS)Example: Force.com,Google App Engine

Windows Azure is a PaaS

2008 and 2009 – exciting for Cloud Computing with Microsoft

SQL Server Data Services (SSDS) – announced at MIX 08 (March 2008)

“SQL Server in the cloud”

Azure Services Platform – announced at PDC 08 (October 2008)

Windows Azure “O.S. for the Cloud”+ additional servicesRESTful – enabling “any client” access

Azure Services Platform

ServiceBus

AccessControl

Workflow

…

Database

Reporting

Analytics

…

Compute Storage Manage

Identity

Devices

Contacts

…

…

…

Your Applications

An internet-scale cloud services platform hosted in Microsoft data centers, which provides an operating system and a set

of developer services that can be used individually or together.

Azure Services Platform

ServiceBus

AccessControl

Workflow

…

Database

Reporting

Analytics

…

Compute Storage Manage

Identity

Devices

Contacts

…

…

…

Your Applications

An internet-scale cloud services platform hosted in Microsoft data centers, which provides an operating system and a set

of developer services that can be used individually or together.

In 50 minute

s

Windows Azure

It is an operating system for the cloudIt is designed for utility computing

Many is better than oneLoose couplingSimple stores scale

It provides facilities to:Write your apps (developer experience)Host your apps (compute)Manage your apps (service management)Store your data (storage)

What Is Windows Azure?

{ Simple Walkthough }

It is not that hard

demo

A B

C

Sidebar: What are these?

D

Default.aspx(Take Order + Process

Order)

LB

Tight coupling : Default.aspx.cs

public partial class _Default : System.Web.UI.Page { protected void Button1_Click(object sender,EventArgs e) { var order = txtOrder.Text; ProcessOrder(order); }

protected void ProcessOrder(string order) { //Make some coffee!

... }

}

Default.aspx(Take Order)

Windows Azure Queues

LB

Worker.cs(Process Order)

Loose coupling : Default.aspx.cs

public partial class _Default : System.Web.UI.Page { protected void Button1_Click(object sender,EventArgs e) { var order = txtOrder.Text;

QueueStorage qStore = QueueStorage.Create(_account);

MessageQueue orderQ = qStore.GetQueue("OrderQueue");

orderQ.PutMessage(new Message(order)); }

}

Loose coupling : WorkerRole.cs

public class WorkerRole : RoleEntryPoint { public override void Start() {

QueueStorage qStore = QueueStorage.Create(_account); MessageQueue orderQ = qStore.GetQueue("OrderQueue"); while (true) { Message msg = orderQ.GetMessage();

if( msg != null) ProcessOrder(msg.ContentAsString()); } } protected void ProcessOrder(string order) {

//Make some coffee! ...

}

{Revisit, Instances and Workers}

demo

Storage in the Cloud

Windows Azure Datacenter

Your Service

Typical Azure Application = WebRole + Worker Role + Storage

LB

Internet

Web Site(ASPX, ASMX,

WCF)


WCF)Web Role

(ASPX, WCF)

Worker Service

Worker Role

LB

StorageTables Blobs

Queue

SQ

L D

ata

Serv

ices2

1


Azure Application = many options

Internet

Application ONE

Web Site(ASPX, ASMX, WCF)

Web Site(ASPX, ASMX, WCF)Web Role

Worker ServiceWorker Role

ONE StorageTables Blobs

Queue SQL Data ServicesDatabase ONE

Application TWO




TWO StorageTables Blobs

Queue

Application THREE




SQL Data Services

Database THREE

FOUR StorageTables Blobs

Queue

Windows Azure and SDS

Azure Storage SQL Data Services

Vision

Access

Relational? (today)

Relational? (tomorrow)

Analogy



Vision Massively scalable, highly available store in the Cloud

Access REST(Uses ADO.NET Data Services)

Relational? (today)

No


No

Analogy




Highly scalable, highly available relational store in the Cloud


SqlClient + TSQL(Use Azure Web Role + ADO.NET Data Services if REST is required)

Relational? (today)

No Yes – but with some limitations


No Yes – with less and less limitations

Analogy




Highly scalable, highly available relational store in the Cloud


SqlClient + TSQL(Use Azure Web Role + ADO.NET Data Services if REST is required)

Relational? (today)

No Yes – but with some limitations


No Yes – with less and less limitations

Analogy File System RDBMS – as it is!


Your Service

Azure Application = WebRole + Worker Role + Storage

LB

Internet


WCF)


WCF)Web Role

(ASPX, WCF)

Worker Service

Worker Role

LB

StorageTables Blobs

Queue

SQ

L D

ata

Serv

ices

Easy

Trickier

Symmetrical APIs – nearly

CloudOn Premise

Application C#, VB, Ruby, PHP

etc

Relational Data

TSQL

Windows Azure Storage

Storage that isDurable, Scalable, Highly Available, Secure, Performant

Rich Data AbstractionsService communication: queues, locks, …Large user data items: blobs, blocks, …Service state: tables, caches, …

Simple and Familiar Programming Interfaces

REST Accessible and ADO.NET

Blob

Entities

Messages

Windows Azure Data Storage Concepts

http://<account>.blob.core.windows.net/<container>

http://<account>.table.core.windows.net/<table>

http://<account>.queue.core.windows.net/<queue>

Account

Container

Table

Queue

Blob Storage

BlockBlobContainerAccount

Account

pictures

IMG001.JPG

IMG002.JPG

movies MOV1.AVI

Block 1

Block 2

Block 3

Table Storage

Massively Scalable TablesBillions of entities (rows) and TBs of dataAutomatically scales to thousands of servers as traffic grows

Highly AvailableCan always access your data

DurableData is replicated at least 3 times

Tables - CapabilitiesWhat tables don’t do

Not relationalNo Referential Integrity

No JoinsLimited Queries

No Group byNo AggregationsNo TransactionsNo Transactions

What tables can do

CheapVery Scalable

FlexibleDurable

If these are important to you, use SQL Data Services Store LOTS of stuff

Table Data Model

Data stored in TablesA Table is a set of Entities (rows)An Entity is a set of Properties (columns)

Entity has:PartitionKey – enables scalabilityRowKey – unique id within the partition

the only indexed property Timestamp – for optimistic concurrency255 properties totalMax size of 1MB

Partition KeyDocument Name

Row KeyVersion

Property 3Modification Time

…..

Property NDescription

Examples Doc V1.0 8/2/2007 ….. Committed version

Examples Doc V2.0.1 9/28/2007 Alice’s working version

FAQ Doc V1.0 5/2/2007 Committed version

FAQ Doc V1.0.1 7/6/2007 Alice’s working version

FAQ Doc V1.0.2 8/1/2007 Sally’s working version

Partition Example

Partition 1

Partition 2

Table Partition - all entities in table with same partition key value

Application controls granularity of partition

Working with Tables

Vessel Position Reporting System – SQL Server

VesselId

xxx-xx1

Time

10:15 14 Nov

Latitude

01.23

Longitude

53.24

Speed

0

xxx-xx1 10:05 14 Nov 04.45 54.32 5

xxx-xx1 09:55 14 Nov 02.32 52.34 4

xxx-xx2 10:15 14 Nov 01.23 51.23 10

To find last pos report for vessel in SQL:

select TOP(1) * from PosRptsorder by [Time] DESCwhere VesselId = ???

Working with Tables

Solving this the Azure wayPartitionKey

Time Latitude Longitude Speed

xxx-xx1 10:15 14 Nov 01.23 53.24 0

xxx-xx1 10:05 14 Nov 04.45 54.32 5

xxx-xx1 09:55 14 Nov 02.32 52.34 4

xxx-xx2 01.23 51.23 1010:15 14 Nov

PartitionKey

VesselId

Working with Tables

PartitionKey

RowKey Latitude Longitude Speed

xxx-xx1

10:15 14 Nov 01.23 53.24 0

10:05 14 Nov 04.45 54.32 5

09:55 14 Nov 02.32 52.34 4

RowKey needs to be a string

2521756430999999999

2521756436999999999

2521756442999999999

(DateTime.MaxValue – time).Ticks.ToString ()

Stored in-order:Just need to do a

top on the partition

time.Ticks.ToString ()

Makes it descending

Azure Services Platform Roadmap

First CTPDeveloper CTP for Services SDKs, and

Tools

Fall 2008 Spring 2009

Updated CTPsEnable Full trust & Fast CGI

Geo-location support.NET Services Open CTP

Live Framework Open CTPSDS Invitation-only CTP

Fall 2009

Commercial AvailabilityWindows Azure.NET ServicesSQL Services

Summer 2009

Pricing and SLA confirmationSDS Public CTP

Windows Azure Summary

Many is better than oneLet Microsoft worry about this

Loose couplingWeb Role and Worker Role

Storage choiceAzure Storage: Simple stores scale

Table, Blob, Queue

SQL Data Services: Full RDBMSStored Procedures, Schema, Transactions, Views etc

What next?•Play with Windows Azure – http://www.azure.com•Understand REST – good and bad practices•Watch the MIX 09 recordings http://live.visitmix.com•Slides at http://geekswithblogs.net/IUpdateableLearn•Students can get Visual Studio through Microsoft DreamSpark•Startups get tools and more via BizSpark•Developers can also use the free Visual Studio Express•Or just use none Microsoft tools and languages e.g. PHP http://phpazure.codeplex.com/

Need tools?

• http://www.newcloudapp.com/ Win

http://www.azure.com/

http://live.visitmix.com/

http://geekswithblogs.net/IUpdateable

https://www.dreamspark.com/default.aspx

http://www.microsoftstartupzone.com/pages/home.aspx

http://go.microsoft.com/?linkid=7729281

http://phpazure.codeplex.com/

http://www.newcloudapp.com/

http://www.newcloudapp.com/

© 2008 Microsoft Ltd. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the

date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

windows azure - ericnel

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