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Scaling Big While Sleeping Well

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Scaling Big While Sleeping Well

  1. 1. Scaling Big while Sleeping Well<br />Josh Holmes<br />@joshholmes<br />josh.holmes@microsoft.com<br />www.joshholmes.com<br />
  2. 2. Agenda<br />Testing the Waters<br />What is cloud computing?<br />What are the advantages of cloud computing?<br />How’s Azure fit in?<br />Diving Deep<br />Digging into PHP/Ruby on Azure<br />Leveraging FastCGI<br />Leveraging Azure Storage<br />Leveraging SQL Azure<br />
  3. 3. We are all excited about the cloud<br />
  4. 4. Cloud-Addressable Challenges<br />1<br />1<br />5<br />Maintaining security while increasing access and transparency—within and outside the organization<br />Infrastructure costs are fixed and ongoing, and distract from the mission of reducing business process friction<br />2<br />6<br />Leveraging past investments to provide future value<br />Security, access, and transparency across the value chain: suppliers, partners, etc.<br />3<br />Many data centers at limit—real estate, capacity, cooling and power<br />7<br />Lack of a common platform<br />4<br />Matching capacity to demand<br />
  5. 5. In House or Hosted Servers<br />Allocated IT-capacities<br />Load Forecast<br />“Under-supply“ of capacities<br />“Waste“ of capacities<br />Fixed cost of IT-capacities<br />IT CAPACITY<br />Barrier for<br />innovations<br />ActualLoad<br />TIME<br />
  6. 6. Cloud Computing<br />Load Forecast<br />Allocated IT capacities<br />No “under-supply“<br />IT CAPACITY<br />Reduction of “over-supply“<br />Possible reduction of IT-capacities in case of reduced load<br />Reduction of initial investments<br />ActualLoad<br />Time<br />
  7. 7. Types of Clouds<br />Platform<br />(as a Service)<br />Private<br />(On-Premise)<br />Infrastructure<br />(as a Service)<br />You manage<br />Applications<br />Applications<br />Applications<br />You manage<br />Runtimes<br />Runtimes<br />Runtimes<br />Security & Integration<br />Security & Integration<br />Security & Integration<br />Managed by vendor<br />Databases<br />Databases<br />Databases<br />You manage<br />Servers<br />Servers<br />Servers<br />Managed by vendor<br />Virtualization<br />Virtualization<br />Virtualization<br />Server HW<br />Server HW<br />Server HW<br />Storage<br />Storage<br />Storage<br />Networking<br />Networking<br />Networking<br />
  8. 8. The Microsoft Cloud<br />~100 Globally Distributed Data Centers<br />Quincy, WA<br />Chicago, IL<br />San Antonio, TX<br />Dublin, Ireland<br />Generation 4 DCs<br />
  9. 9.
  10. 10. Categories of Services<br />Application Services<br />Software Services<br />Platform Services<br />The Microsoft Cloud<br />Infrastructure Services<br />
  11. 11. The trick is knowing what your systems need,<br />and how the cloud can help.<br />
  12. 12. Not everything has to or can live in the cloud<br />
  13. 13. Only move to the cloud that which can benefit<br />
  14. 14. The core strategy is ‘hybrid’<br />
  15. 15. Take an À la carteapproach<br />
  16. 16. We call this Software + Services<br />
  17. 17. An Example…<br />
  18. 18. “Packaged”<br />Application<br />Big Pharmaceutical Example<br />Hosted <br />“Packaged”<br />“Packaged”<br />using cloud <br />“Software as a Service”<br />Buy<br />ERP<br />“Too costly to run this myself, but I’ve made too many customizations”<br />CRM<br />Email<br />Build vs. Buy<br />“Home Built”<br />Application<br />Hosted <br />“Home Built”<br />“Home Built”<br />using cloud <br />“Platform as a Service”<br />HR System<br />Molecule Research<br />Build<br />Clinical Trial<br />Hoster<br />Vendor<br />On Premise<br />Cloud<br />
  19. 19. “Packaged”<br />Application<br />Big Pharmaceutical Example<br />Hosted <br />“Packaged”<br />“Packaged”<br />using cloud <br />“Software as a Service”<br />Buy<br />ERP<br />CRM<br />“CRM and Email are commodity services – They have no customizations, and it’s cheaper for someone else to run these”<br />Email<br />Build vs. Buy<br />“Home Built”<br />Application<br />Hosted <br />“Home Built”<br />“Home Built”<br />using cloud <br />“Platform as a Service”<br />HR System<br />Molecule Research<br />Build<br />Clinical Trial<br />Hoster<br />Vendor<br />On Premise<br />Cloud<br />
  20. 20. Big Pharmaceutical Example<br />“Packaged”<br />Application<br />Hosted <br />“Packaged”<br />“Packaged”<br />using cloud <br />“Software as a Service”<br />Buy<br />ERP<br />CRM<br />Email<br />Build vs. Buy<br />“Home Built”<br />Application<br />Hosted <br />“Home Built”<br />“Home Built”<br />using cloud <br />“Platform as a Service”<br />“I can’t afford to maintain this old HR application written in VB4 – it’s driving me mad!”<br />HR System<br />“…but due to regulatory issues, I cannot store my HR data off-premise”<br />Molecule Research<br />Build<br />Clinical Trial<br />Hoster<br />Vendor<br />On Premise<br />Cloud<br />
  21. 21. “Packaged”<br />Application<br />Big Pharmaceutical Example<br />Hosted <br />“Packaged”<br />“Packaged”<br />using cloud <br />“Software as a Service”<br />Buy<br />ERP<br />CRM<br />Email<br />HR System<br />Build vs. Buy<br />“Home Built”<br />Application<br />Hosted <br />“Home Built”<br />“Home Built”<br />using cloud <br />“Platform as a Service”<br />“I wish I had access to cheaper compute and storage when I need it”<br />Molecule Research<br />Build<br />Clinical Trial<br />Hoster<br />Vendor<br />On Premise<br />Cloud<br />
  22. 22. “Packaged”<br />Application<br />Big Pharmaceutical Example<br />Hosted <br />“Packaged”<br />“Packaged”<br />using cloud <br />“Software as a Service”<br />Buy<br />ERP<br />CRM<br />Email<br />HR System<br />Build vs. Buy<br />“Home Built”<br />Application<br />Hosted <br />“Home Built”<br />“Home Built”<br />using cloud <br />“Platform as a Service”<br />Molecule Research<br />Build<br />“THIS is where I want to spend my IT resources – I’m going to double down on this application!”<br />Clinical Trial<br />Hoster<br />Vendor<br />On Premise<br />Cloud<br />
  23. 23. Where the Cloud is Compelling<br />
  24. 24. Only 2 reasons to use the cloud<br />
  25. 25. Windows Azure VMs<br />Small<br />Medium<br />Large <br />X Large<br />$0.12 <br />$0.24 <br />$0.48 <br />$0.96 <br />Per service hour<br />Per service hour<br />Per service hour<br />Per service hour<br />1 x 1.6Ghz <br />2 x 1.6Ghz <br />4 x 1.6Ghz <br />8 x 1.6Ghz<br />(moderate IO) <br />(high IO)<br />(high IO) <br />(high IO)<br />1.75 GB memory <br />3.5 GB memory <br />7.0 GB memory<br />14 GB memory<br />
  26. 26. Windows Azure, In One Picture<br />Business Portal<br />Developer Portal<br />Service Management Service<br />REST<br />User Code<br />…<br />…<br />Runtime API<br />Storage Cluster<br />VS Tools<br />Compute Cluster<br />…<br />WA SDK<br />VM Setup<br />REST<br />MSFT Datacenters<br />Desktop<br />Cloud VM<br />
  27. 27. Determine an ROI<br />Consider:<br /><ul><li>Current hosting costs
  28. 28. Current staff costs
  29. 29. Cooling/power/space
  30. 30. Migration costs
  31. 31. Licensing</li></ul>AzureROI.CloudApp.net<br />
  32. 32.
  33. 33. ZENDFRAMEWORK<br />
  34. 34. Digging into Azure with PHP/Ruby<br />
  35. 35. Windows Azure, In One Picture<br />Business Portal<br />Developer Portal<br />Service Management Service<br />REST<br />User Code<br />…<br />…<br />Runtime API<br />Storage Cluster<br />VS Tools<br />Compute Cluster<br />…<br />WA SDK<br />VM Setup<br />REST<br />MSFT Datacenters<br />Desktop<br />Cloud VM<br />
  36. 36. Windows Azure Roles<br />WorkerRole<br /><ul><li>Internal Facing
  37. 37. TCP/HTTP Endpoint
  38. 38. Long running processes
  39. 39. Think Service or Deamon</li></ul>WebRole<br /><ul><li>External Facing
  40. 40. HTTP/HTTPS Endpoint
  41. 41. Short lived calls
  42. 42. Think Web Server</li></li></ul><li>Running PHP in Windows Azure<br />How to Do It<br />Host in Web role (like .NET)<br />Supply PHP runtime<br />Point to runtime via FastCGI configuration in<br />Web.config<br />Web.roleConfig<br />PHP <br />Web Role<br />Instance 1<br />VIP<br />Load Balancer<br />PHP <br />Web Role<br />Instance 2<br />
  43. 43. Windows Azure 4 Eclipse<br />Does a lot of the heavy lifting for you<br />Creates the Web.config, Web.roleConfig, PHP implementation and debugs in the dev fabric<br />http://windowsazure4e.org<br />
  44. 44. Running EXEs in the Worker Process<br />Start with a Worker Role Process to <br />Copy the exes to the worker role’s app directory<br />Execute the process<br />Monitor the health of the process<br />Other auxiliary tasks…<br />
  45. 45. Running Ruby in the Worker Process<br />http://code.msdn.microsoft.com/railsonazure<br />Download and extract the solution <br />Copy the Ruby bin and lib folders to the Ruby folder in the RR project <br />Copy your rails application to the RailsApp folder in the RR project <br />Open the solution in Visual Studio <br />Run in the Dev Fabric<br />Navigate to http://127.0.0.1:5100<br />
  46. 46. Data Storage<br />
  47. 47. Storage options<br />Windows Azure Data<br />Sql Azure<br />
  48. 48. Windows Azure Data Storage<br />Queue<br />Blob<br />Account<br />Tables<br />Drives<br />
  49. 49. Azure Platform Data Storage Options<br /><ul><li>Windows Azure Data Storage
  50. 50. Blobs
  51. 51. Unstructured data storage
  52. 52. Tables
  53. 53. Semi-structured or tabular data storage
  54. 54. Queues
  55. 55. Buffered delivery data storage
  56. 56. Drives
  57. 57. Durable NTFS volumes that Windows Azure applications can use. See: http://microsoftpdc.com/Sessions/SVC14</li></ul>SQL Azure<br /><ul><li>Relational data storage</li></li></ul><li>Admin Windows Azure Data Storage<br />
  58. 58. Windows Azure Data Storage<br />
  59. 59. PHP with Windows Azure Storage<br />Windows Azure SDK for PHP @ http://phpazure.codeplex.com<br />PHP programming model for Windows Azure Storage<br />Features <br />PHP classes for Blobs, Tables & Queues<br />Store PHP sessions in Table Storage<br />
  60. 60. Windows Azure Data Storage - Blobs<br />Unstructured data storage<br />Partitioned by container<br />Unlimited containers<br />
  61. 61. Blobs Sample<br />$blobStorage= new Microsoft_WindowsAzure_Storage_Blob();<br />// Create<br />if (!$blobStorage->containerExists($containerName))<br />{<br />$blobStorage->createContainer($containerName);<br />$blobStorage->setContainerAcl($containerName, <br />Microsoft_WindowsAzure_Storage_Blob::ACL_PUBLIC);<br />}<br />// Store<br />$blob = $blobStorage->putBlob($containerName, $blobName, <br />$localFilename, $metadata);<br />/* @var $blob Microsoft_WindowsAzure_Storage_BlobInstance */<br />
  62. 62. Blobs Sample Cont…<br />// Copy<br />$result = $blobStorage->copyBlob(<br /> $containerName, $blobName, $containerName, $blob2Name);<br />// Retrieve<br />$tempStore= azure_getlocalresourcepath('tempstore');<br />$tempPath= $tempStore. 'apos; . $imageId;<br />$blobStorage->getBlob($containerName, $blobName, $tempPath);<br />// Delete<br />$result = $blobStorage->deleteBlob($containerName, $blobName);<br />$result = $blobStorage->deleteContainer($containerName);<br />
  63. 63. Blob Stream Wrapper<br />$blobStorage= new Microsoft_WindowsAzure_Storage_Blob();<br />// Register:<br />$blobStorage->registerStreamWrapper(); // registers azure://<br />// or<br />$blobStorage->registerStreamWrapper('blob://'); // use blob://<br />// Use<br />$fp= fopen('azure://mycontainer/myfile.txt', 'r');<br />// ...<br />fclose($fp);<br />
  64. 64. Storage: XDrive<br />NTFS drive in the cloud: X:<br />Fixed size between 16MB and 1TB<br />Max 8 drives on your VM<br />Implemented as a page blob<br />Single instance write<br />Multiple instance read<br />
  65. 65. Queue Workflow Concepts<br />Windows Azure Queue Provides<br />Guarantee delivery (two-step consumption)<br />Worker Dequeues Message and mark it as Invisible<br />Worker Deletes Message when finished processing it<br />If Worker role crashes, message becomes visible for another Worker to process<br />Doesn’t guarantee “only once” delivery<br />Doesn’t guarantee ordering<br />Best effort FIFO<br />Worker Role<br />Web Role<br />Input Queue (Work Items)<br />Worker Role<br />Azure Queue<br />Web Role<br />Worker Role<br />Web Role<br />Worker Role<br />
  66. 66. Azure Queues<br />RemoveMessage<br />GetMessage (Timeout)<br />Worker Role<br />PutMessage<br />Queue<br />Msg 1<br />Msg 2<br />Msg 2<br />Msg 1<br />Web Role<br />Worker Role<br />Worker Role<br />Msg 3<br />Msg 4<br />Msg 2<br />
  67. 67. Loosely Coupled Work with Queues<br />Worker-Queue Model<br />Load work in a queue<br />Many workers consume the queue<br />Input Queue (Work Items)<br />Azure Queue<br />Worker Role<br />Web Role<br />Worker Role<br />Web Role<br />Worker Role<br />Web Role<br />Worker Role<br />
  68. 68. Queues<br />$queueClient= new Microsoft_WindowsAzure_Storage_Queue();<br />// Create<br />$result = $queueClient->createQueue('imageQueue');<br />// Delete<br />$queueClient->deleteQueue('imageQueue');<br />// Add message<br />$queueClient->putMessage('imageQueue', $message, $ttl);<br />// Retrieve Messages<br />$messages = $queueClient->getMessages('imageQueue', 10);<br />foreach($messages as $message) {<br />// Do work here...<br />$queueClient->deleteMessage('imageQueue', $message);<br />}<br />
  69. 69. Windows Azure Data Storage - Tables<br />Semi-Structured data<br />Tables contain entities<br />Entities contain properties<br />May be partitioned across thousands of servers.<br />Support ACID transactions over single entities<br />Queries over entire table<br />.NET and REST interfaces<br />
  70. 70. Windows Azure Data Storage – Tables (Terms Part 1)<br />Table<br />Contains a set of entities. <br />Entity (Row) <br />Basic data items stored in a table. <br />Property (Column)<br />Single value in an entity. <br />RowKey<br />Unique ID of the entity within a partition<br />Timestamp<br />Time it was created<br />
  71. 71. Windows Azure Data Storage – Tables (Terms Part 2)<br />Partition <br />Entities in a table with the same partition key<br />PartitionKey<br />Segments entities in to partitions to automatically distribute the table’s entities over many storage nodes.<br />Sort Order<br />There is a single index provided for the CTP, where all entities in a table are sorted by PartitionKey and then RowKey<br />
  72. 72. Key Example – Blog Posts<br />Partition 1<br />Partition 2<br />Getting all of dunnry’s blog posts is fast<br />Single partition<br />Getting all posts after 2008-03-27 is slow<br />Traverse all partitions<br />
  73. 73. Table Sample<br />$tableStorage= new Microsoft_WindowsAzure_Storage_Table(<br />'table.core.windows.net', 'myaccount', 'myauthkey');<br />// Create<br />$result = $tableStorage->createTable($tableName);<br />// List <br />$result = $tableStorage->listTables();<br />foreach($result as $table) {<br />echo 'Table name is: ' . $table->Name . " ";<br />}<br />// Delete<br />$tableStorage->deleteTable($tableName);<br />
  74. 74. Tables with Entities<br />// Structured entity<br />class ImageEntityextends <br />Microsoft_WindowsAzure_Storage_TableEntity<br />{<br />/**<br /> * @azure filename<br /> */<br />public $filename;<br />/**<br /> * @azure size Edm.Int64<br /> */<br />public $size;<br />}<br />// Unstructured entity<br />// Microsoft_WindowsAzure_Storage_DynamicTableEntity<br />
  75. 75. Tables with Entities Cont…<br />// Insert<br />$image = new ImageEntity($partitionKey, $rowKey);<br />$image->filename = $_FILES['imageUpload']['name'];<br />$image->size = $_FILES['imageUpload']['size'];<br />$image = $tableStorageClient->insertEntity($tableName, $image);<br />// Retrieve<br />$image = $tableStorage->retrieveEntityById($tableName, <br />$partitionKey, $rowKey, 'ImageEntity');<br />// Update<br />$image->filename = 'newname.jpg';<br />$result = $tableStorage->updateEntity($tableName, $image);<br />// Delete<br />$result = $tableStorage->deleteEntity($tableName, $image);<br />
  76. 76. Table Queries<br />// Filter condition<br />$select = "filesizegt 1024 and PartitionKeyeq '$partitionKey'";<br />// Or fluent interface<br />$select = $tableStorage->select()->from($tableName)<br /> ->where('filesizegt 1024')<br /> ->andWhere('PartitionKeyeq ?', $partitionKey);<br />// Run query<br />$images = $tableStorage->storageClient->retrieveEntities(<br />'testtable', $select, 'ImageEntity'<br />);<br />foreach($images as $image) {<br />echo 'Name: ' . $image->filename . " ";<br />}<br />
  77. 77. Batching Operations<br />// Start batch<br />$batch = $tableStorage->startBatch();<br />// Insert multiple<br />$images = generateEntities();<br />foreach($images as $image) {<br />$tableStorage->insertEntity($tableName, $image);<br />}<br />// Commit<br />$batch->commit();<br />
  78. 78. Table session handler<br />$sessionHandler<br /> = new Microsoft_WindowsAzure_SessionHandler($tableStorage);<br />$sessionHandler->register();<br />session_start();<br />if (!isset($_SESSION['start'])) {<br />$_SESSION['start'] = time();<br />}<br />
  79. 79. SQL Azure and Windows Azure Table Comparison<br />Windows Azure Tables<br />SQL Azure Tables<br />Semi-structured<br />Loosely typed<br />Non-Relational (Not RDMS)<br />Massively scalable<br />Fully structured<br />Strongly typed<br />Relational (RDMS)<br />Highly scalable<br />
  80. 80. MySQL: Simple Configuration<br />VIP<br />Load Balancer<br />Web Role<br />MySQL<br />Worker Role<br />
  81. 81. MySQL in a Windows Azure Application<br />Running MySQL in a worker role<br />Copy MySQL to the worker role sub-directory<br />Copy to read-write local storage<br />Configure MySQL to listen on the right port<br />Monitor MySQL health<br />Consuming MySQL<br />Discover IP address and port<br />Normal access from then on<br />Handle topology changes<br />
  82. 82. Simple Configuration<br />VIP<br />Load Balancer<br />MySQL<br />
  83. 83. Replication<br />VIP<br />Load Balancer<br />M<br />S<br />S<br />MySQL<br />MySQL<br />MySQL<br />
  84. 84. Windows Azure Drive with Hot Spare<br />VIP<br />Load Balancer<br />MySQL<br />MySQL<br />
  85. 85. Windows Azure Drive with Hot Spare<br />VIP<br />Load Balancer<br />MySQL<br />MySQL<br />
  86. 86. SQL Azure<br />
  87. 87. SQL Azure Features<br />Supported<br />Tables, Indexes, Views<br />Stored Procedures<br />Triggers<br />Constraints<br />Table Variables<br />Temp Tables (#Name)<br />Not Supported<br />Physical Server Access <br />Catalog DDL<br />Common Language Runtime<br />Service Broker<br />Reporting Services<br />Analysis Services<br />Distributed Transactions and Queries<br />
  88. 88. SQL AzureDeployment<br />Web Portal<br />(API)<br />DB Script<br />SQL Azure<br />TDS<br />
  89. 89. SQL AzureAccessing databases<br />Web Portal<br />(API)<br />Your App<br />SQL Azure<br />TDS<br />Change Connection String<br />
  90. 90. Database Replicas<br />Single Database<br />Multiple Replicas<br />Replica 1<br />Single Primary<br />Replica 2<br />DB<br />Replica 3<br />
  91. 91. SQL AzureDatabase Monitoring & Recovery<br />Web Portal<br />(API)<br />!<br />Your App<br />SQL Azure<br />TDS<br />
  92. 92. SQL Azure Server Creation<br />
  93. 93. SQL Azure Firewall Maintenance<br /><ul><li>Simple rules
  94. 94. Easy one-screen portal maintenance</li></li></ul><li>SQL Azure Database Connection String<br />An administrative user is created with the server<br />User has system administrator permissions likesa”<br />Server=tcp:itte80vcfq.database.windows.net; Database=FabrikamAzureDB;User ID=SaPaulM;Password=myPassword;Trusted_Connection=False;Encrypt=True;<br />
  95. 95. Database Migrations<br />Scripts<br />Transfer Schema<br />BCP<br />Transfer Data<br />SSIS (SQL Server Integration Service)<br />Transfer Schema and Data<br />
  96. 96. Database Migrations (Cont.)<br />The SQL Azure Migration Wizard helps you migrate your local SQL Server 2005 / 2008 databases into SQL Azure. The wizard walks you through the selection of your SQL objects, creates SQL scripts suitable for SQL Azure, and allows you to migrate your data.”<br />http://sqlazuremw.codeplex.com/<br />
  97. 97. Database Management using SQL Management Studio<br />
  98. 98. PHP with SQL Azure<br />SQL Server Driver for PHP @ http://sqlsrvphp.codeplex.com/<br />Supports PHP access to SQL Azure<br />Features<br />Choose between SQL Server and SQL Azure by changing connection string<br />Use from on-premises or in Windows Azure<br />
  99. 99.
  100. 100. More resources<br />Microsoft Windows Azure Interop<br />http://www.microsoft.com/windowsazure/interop/<br />Interop Bridges<br />http://www.interoperabilitybridges.com/<br />
  101. 101. More resources<br />PHP<br />http://www.windowsazure4e.org<br />http://phpazure.codeplex.com/<br />MySQL<br />Windows Azure MySQL PHP Solution Accelerator<br />http://code.msdn.microsoft.com/winazuremysqlphp<br />
  102. 102. More resources<br />Python<br />Sriram Krishnan<br />http://www.sriramkrishnan.com/blog/2008/11/python-wrapper-for-windows-azure.html<br />Ruby<br />Simon Davies<br />http://blogs.msdn.com/simondavies<br />http://code.msdn.microsoft.com/railsonazure<br />Johnny Halife<br />http://github.com/johnnyhalife/waz-storage<br />http://waz-storage.heroku.com/rdoc/index.html<br />
  103. 103. And of course<br />Josh Holmes<br />http://www.joshholmes.com<br />
  104. 104. Scaling Big while Sleeping Well<br />Josh Holmes<br />@joshholmes<br />josh.holmes@microsoft.com<br />www.joshholmes.com<br />

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