Microsoft/Zend Webcast on Cloud Computing

Cloud Computing with Zend Framework and Windows Azure
Josh Holmes
@joshholmes
josh.holmes@microsoft.com
www.joshholmes.com

Agenda
Testing the Waters
What is cloud computing?
What are the advantages of cloud computing?
How’s Azure fit in?
Diving Deep
Digging into PHP on Azure
Leveraging Azure Storage
Leveraging SQL Azure

We are all excited about the cloud

In House or Hosted Servers
Allocated IT-capacities
Load Forecast
“Under-supply“ of capacities
“Waste“ of capacities
Fixed cost of IT-capacities
IT CAPACITY
Barrier for
innovations
ActualLoad
TIME

Cloud Computing
Load Forecast
Allocated IT capacities
No “under-supply“
IT CAPACITY
Reduction of “over-supply“
Possible reduction of IT-capacities in case of reduced load
Reduction of initial investments
ActualLoad
Time

Types of Hosting Solutions
Platform
(as a Service)
Private
(On-Premise)
Infrastructure
(as a Service)
You manage
Applications
Applications
Applications
You manage
Runtimes
Runtimes
Runtimes
Security & Integration
Managed by vendor
Databases
Databases
Databases
You manage
Servers
Servers
Servers
Managed by vendor
Virtualization
Virtualization
Virtualization
Server HW
Server HW
Server HW
Storage
Storage
Storage
Networking
Networking
Networking

The Microsoft Cloud
~100 Globally Distributed Data Centers
Quincy, WA
Chicago, IL
San Antonio, TX
Dublin, Ireland
Generation 4 DCs

ZENDFRAMEWORK

Two sides to talk about…
Storage
Compute
User Code
Runtime API
VM Setup
Cloud VM

Data Storage

PHP with Windows Azure Storage
SimpleCloud API @ http://simplecloud.org
Windows Azure SDK for PHP @ http://phpazure.codeplex.com
PHP programming model for Windows Azure Storage
Features
PHP classes for Blobs, Tables & Queues
Store PHP sessions in Table Storage

Windows Azure 4 Eclipse
Does a lot of the heavy lifting for you
Creates the Web.config, Web.roleConfig, PHP implementation and debugs in the dev fabric
http://windowsazure4e.org
Does a lot of the heavy lifting for you

Windows Azure Data Storage
Queue
Blob
Account
Tables
Drives

Azure Platform Data Storage Options
Windows Azure Data Storage
Blobs
Unstructured data storage
Tables
Semi-structured or tabular data storage
Queues
Buffered delivery data storage
Drives
Durable NTFS volumes that Windows Azure applications can use. See: http://microsoftpdc.com/Sessions/SVC14
SQL Azure
Relational data storage

Windows Azure Data Storage - Blobs
Unstructured data storage
Partitioned by container
Unlimited containers

Storage: XDrive
NTFS drive in the cloud: X:
Fixed size between 16MB and 1TB
Max 8 drives on your VM
Implemented as a page blob
Single instance write
Multiple instance read

Queue Workflow Concepts
Windows Azure Queue Provides
Guarantee delivery (two-step consumption)
Worker Dequeues Message and mark it as Invisible
Worker Deletes Message when finished processing it
If Worker role crashes, message becomes visible for another Worker to process
Doesn’t guarantee “only once” delivery
Doesn’t guarantee ordering
Best effort FIFO
Worker Role
Web Role
Input Queue (Work Items)
Worker Role
Azure Queue
Web Role
Worker Role
Web Role
Worker Role

Azure Queues
RemoveMessage
GetMessage (Timeout)
Worker Role
PutMessage
Queue
Msg 1
Msg 2
Msg 2
Msg 1
Web Role
Worker Role
Worker Role
Msg 3
Msg 4
Msg 2

Loosely Coupled Work with Queues
Worker-Queue Model
Load work in a queue
Many workers consume the queue
Input Queue (Work Items)
Azure Queue
Worker Role
Web Role
Worker Role
Web Role
Worker Role
Web Role
Worker Role

Windows Azure Data Storage - Tables
Semi-Structured data
Tables contain entities
Entities contain properties
May be partitioned across thousands of servers.
Support ACID transactions over single entities
Queries over entire table
.NET and REST interfaces

Windows Azure Data Storage – Tables (Terms Part 1)
Table
Contains a set of entities.
Entity (Row)
Basic data items stored in a table.
Property (Column)
Single value in an entity.
RowKey
Unique ID of the entity within a partition
Timestamp
Time it was created

Windows Azure Data Storage – Tables (Terms Part 2)
Partition
Entities in a table with the same partition key
PartitionKey
Segments entities in to partitions to automatically distribute the table’s entities over many storage nodes.
Sort Order
There is a single index provided for the CTP, where all entities in a table are sorted by PartitionKey and then RowKey

Key Example – Blog Posts
Partition 1
Partition 2
Getting all of dunnry’s blog posts is fast
Single partition
Getting all posts after 2008-03-27 is slow
Traverse all partitions

SQL Azure and Windows Azure Table Comparison
Windows Azure Tables
SQL Azure Tables
Semi-structured
Loosely typed
Non-Relational (Not RDMS)
Massively scalable
Fully structured
Strongly typed
Relational (RDMS)
Highly scalable

SQL Azure

SQL Azure Features
Supported
Tables, Indexes, Views
Stored Procedures
Triggers
Constraints
Table Variables
Temp Tables (#Name)
Not Supported
Physical Server Access
Catalog DDL
Common Language Runtime
Service Broker
Reporting Services
Analysis Services
Distributed Transactions and Queries

SQL AzureDeployment
Web Portal
(API)
DB Script
SQL Azure
TDS

SQL AzureAccessing databases
Web Portal
(API)
Your App
SQL Azure
TDS
Change Connection String

Database Replicas
Single Database
Multiple Replicas
Replica 1
Single Primary
Replica 2
DB
Replica 3

SQL AzureDatabase Monitoring & Recovery
Web Portal
(API)
!
Your App
SQL Azure
TDS

SQL Azure Database Connection String
An administrative user is created with the server
User has system administrator permissions likesa”
Server=tcp:itte80vcfq.database.windows.net; Database=FabrikamAzureDB;User ID=SaPaulM;Password=myPassword;Trusted_Connection=False;Encrypt=True;

Windows Azure VMs
Small
Medium
Large
X Large
$0.12
$0.24
$0.48
$0.96
Per service hour
Per service hour
Per service hour
Per service hour
1 x 1.6Ghz
2 x 1.6Ghz
4 x 1.6Ghz
8 x 1.6Ghz
(moderate IO)
(high IO)
(high IO)
(high IO)
1.75 GB memory
3.5 GB memory
7.0 GB memory
14 GB memory

Windows Azure, In One Picture
Business Portal
Developer Portal
Service Management Service
REST
User Code
…
…
Runtime API
Storage Cluster
VS Tools
Compute Cluster
…
WA SDK
VM Setup
REST
MSFT Datacenters
Desktop
Cloud VM

Windows Azure Roles
WorkerRole
Internal Facing
TCP/HTTP Endpoint
Long running processes
Think Service or Deamon
WebRole
External Facing
HTTP/HTTPS Endpoint
Short lived calls
Think Web Server

Running PHP in Windows Azure
How to Do It
Host in Web role (like .NET)
Supply PHP runtime
Point to runtime via FastCGI configuration in
Web.config
Web.roleConfig
PHP
Web Role
Instance 1
VIP
Load Balancer
PHP
Web Role
Instance 2

Running EXEs in the Worker Process
Start with a Worker Role Process to
Copy the exes to the worker role’s app directory
Execute the process
Monitor the health of the process
Other auxiliary tasks…

More resources
Microsoft Windows Azure Interop
http://www.microsoft.com/windowsazure/interop/
Interop Bridges
http://www.interoperabilitybridges.com/

More resources
PHP
http://www.windowsazure4e.org
http://simplecloud.org
http://phpazure.codeplex.com/
MySQL
Windows Azure MySQL PHP Solution Accelerator
http://code.msdn.microsoft.com/winazuremysqlphp

And of course
Josh Holmes
http://www.joshholmes.com

Cloud Computing with Zend Framework and Windows Azure
Josh Holmes
@joshholmes
josh.holmes@microsoft.com
www.joshholmes.com

Microsoft/Zend Webcast on Cloud Computing

by Josh Holmes on Oct 21, 2010

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Microsoft/Zend Webcast on Cloud Computing — Presentation Transcript