Java on Windows Azure Cloud Service

1. Java on Windows Azure Cloud
Service
黃忠成

2. Windows Azure Overview
Cloud Service
Web Role
Worker Role
Virtual Machines
Web Sites
Virtual Network
Mobile Service
Media Service

3. VM and Cloud Service
Virtual Machines
IaaS
Load Balancing by Setting (from Portal)
Scale out need more actions
OS is maintain by your self
Provides Management API
Cloud Service
PaaS
Load Balancing by Auto
Scale out is simple and automation
OS, and software included will patching auto, you don’t need maintain
Provides Management API

4. Java On Windows Azure

5. 環境的準備
.NET Framework 2.0/3.5
JDK
Windows Azure SDK 1.8
Eclipse
Eclipse Plug-Ins
Tomcat

6. Installing
.NET Framework 2.0/3.5
Installing JDK 7
Installing Eclipse 3.7
Install Windows Azure SDK
http://go.microsoft.com/fwlink/?LinkID=252838&clcid=0
x409
Install Tomcat 7

7. Install Eclipse Plug-Ins

8. 讓我們開始吧

9. Creating Dynamic Web Project

10. Add index.jsp
Demo and Run

11. Add Windows Azure Deployment
Project

12. Include JDK and Tomcat

13. Add Deployment WAR files

14. Session, Cache, and Remote
Debugger
稍後我們會深入討論這個畫面中的設定

15. 整個專案樹會變成這樣

16. Run In Emulator

17. 現在在哪?
我們的Web Project會編譯並打包為.WAR
當按下Run In Windows Azure Emulator後,會將.WAR
及Cloud Service相關設定打包成.csdef,cscfg及.cspkg,
並啟動本地端的Windows Azure Computer Emulator
來執行.
這是一個本地端的Cloud Service 模擬器.

18. Enable Remote Debugger

19. Add Breakpoint and Run Emulator

20. Starting Debug

21. 最終結果

22. Publish to Cloud Service

23. Publish To Cloud Service

24. Publish To Cloud Service

25. Publish To Cloud Service

26. Waiting for Publish

27. Testing in Cloud Service

28. 開發流程
使用本地端的 建立Windows
撰寫你的Web
Tomcat來測試 Azure Deployment
Application
及除錯 Project
Import WAR(從你
在模擬器上測試及
的Web Application
除錯
Project)
Remote Debugger 佈署至雲端

29. About Remote Debugger
You can debug in local and cloud service
After package is deployment, you can create debug
configuration and starting debug

30. Remote Connect

31. Welcome your Worker Role

32. 管理你的Cloud Service
Remote Connect

33. SWAP to Production slot

34. SCALE

35. Change Remote Desktop Password

36. Access Database

37. Creating MySQL(ClearDB)
http://www.cleardb.com/

38. Get Connection Information

39. Testing Connecting

40. Add MySQL JDBC Driver

41. Using code

42. Creating SQL Azure Database

43. Connecting with SQL Management
Studio

44. Connecting with Code
Add SQL Server JDBC Driver

45. Get Connection String

46. Connecting with code

47. 存取Storage Services

48. 建立Storage Services Account

49. Add Azure Client Library to Project

50. Use Table Storage Service

51. Add useTable.jsp
Import Azure Client Library in .jsp
Prepare connection string

52. About Connection String

53. Creating Entity Class
Entity class must Inherit from TableServiceEntity
Add Properties

54. About Partition key and row key
Table use Partition key and row key as Primary Key
Partition Key will help data partition
Appropriate use of Partition key will increase
performance for accessing Table Storage

55. Creating Table and Add Entity

56. Run
Demo

57. Is Done???
Download Azure Storage Explorer
http://azurestorageexplorer.codeplex.com/

58. Testing

59. Make thing easy….
Creating StorageClient Helper classes
Creating TableHelper classes

60. Demo and Trying
Demo

61. Using Blob Storage Service

62. Blob Storage
Blob Storage can store large data item
Blob Storage is durability and scalable
Blob Architecture
Account Container Blob
IMG001.JPG
pictures
IMG002.JPG
sally
movies MOV1.AVI

63. Blob Types
Block Blob
Block Blob 最大支援至200GB
Block Blob 可以分區塊上傳,每個Block最大為4MB,直到呼叫Put Block List前,所上
傳的區塊都不會成為檔案的一部份,因此沒有人可以存取未呼叫Pub Block List前
的區塊資料
當上傳檔案小於64MB時,可選擇直接上傳而不分區塊
Block Blob 通常用於儲存影片等須完整後才能提供下載的檔案
Page Blob
最佳化亂數存取型,常用於儲存即時性資料,沒有檔案完整性的確認機制
Page Blob於建立時即需指定大小,之後可分區塊寫入(每個區塊大小必須符合512
Byte的倍數, 最大為1TB, 與Block Blob不同,一經上傳完成,該區塊即成為檔案的一
部份,所有人皆可取用
Page Blob 最大支援至1TB
Page Blob 通常用於Client Application,例如Silverlight,WPF or WinForm

64. Creating Upload Handler
Demo

65. Create Blobs.jsp
Demo

66. Using Queue Service

67. Creating Queue.jsp
Demo

68. Using Storage Emulator
Windows Azure SDK provides Storage Service
Emulator

69. Testing our Application with Storage
Emulator

70. Storage Emulator Notes
It’s Emulator, do not provides full function !!
We recommend you testing in real Cloud Storage
Service

71. Enable CDN for Storage Service

72. Why use CDN
CDN will deliver storage content to worldwide CDN
Servers
User access same CDN endpoint will redirect to near
CDN Server
I.e.:
User in East US will connect to East US CDN Server
User in East Asia will connect to East Asia CDN Server

73. Enable CDN on Storage Services
Back to Previous Portal

74. Enable CDN on Storage Services

75. Enable CDN on Storage Services
CDN will take 60 minutes to activate

76. Changing URL of Resource link
Just change url from blob storage endpoint to CDN
endpoint
Like
http://res1026.blob.core.windows.net/imagecontainer/N
FpcWQ3H1THKOEHyGrjQGA.jpg
To
http://az412373.vo.msecnd.net/imagecontainer/NFpcWQ
3H1THKOEHyGrjQGA.jpg

77. Using CDN notes
Access static pictures/resources/javascripts
When storage is changed, CDN may need 72-hours to
refresh status
For real-time resources, use storage service instead
CDN
CDN will provides purged API in feature.

78. Enable Caching

79. Introducing Windows Azure Caching
Provides general Caching Services
Provides two Cache Services
Role-base Caching
Shared Caching
support memcache protocol
Node.js
PHP
Java

80. About Co-located and Dedicated
Co-Located Caching
Use same Role memory to caching data
You should not use large memory for caching
Dedicated
Use another Role memory to caching data
In general , we will use all memory for caching

81. Preparing
Download spymemcached.jar(2.8.1)
http://code.google.com/p/spymemcached/downloads/lis
t
Add .JAR to Project

82. Configure a Co-Located Caching

83. Testing in Emulator
Demo

84. Configure a Dedicated Caching
Add memcache_default Endpoint

85. Configure a Dedicated Caching
Import Caching Folder as Components

86. Configure a Dedicated Caching
Import Caching Shim Folder as Components

87. Configure a Dedicated Caching
Add MemcacheShimInstaller.exe as Component

88. Configure a Dedicated Caching
Add web.config in WorkerRole1approot

89. Configure a Dedicated Caching
Creating New Worker Role

90. Configure a Dedicate Caching
Enable Co-located Caching in DedicateCache Role

91. Test in Emulator

92. Caching Setting

93. About Sessions and Multiple
Instances

94. Default Sessions
Cloud Services will use Round-Robin to accomplish
load balance
In 2 Instances
the user first enter the page will direct to Instance A
We save some data in session
Then user click some button then will direct to instance
B
Session will not exists in Instance B (lost session)

95. Enable Sticky Session

96. Modify Instance Count

97. Add session operations in index.jsp

98. Test in Cloud
Demo

99. Manually Upload Package

100. Build Cloud Deployment Package

101. Upload Cloud Deployment Package
To Cloud Service
Create Cloud Service

102. Add Remote Connect Certification

103. Upload Cloud Deployment Package
To Cloud Service
Upload Package

104. Optimized Deploy

105. Include JDK and tomcat will increase
deployment package size

106. Create JDK Package
 Not only JRE, full JDK Required.

107. Create Tomcat Package

108. Upload JDK and Tomcat to cloud

109. Creating Empty Deployment Project

110. Export WAR

111. Add BlobDownloader.exe and .cfg,
StorageClient.dll to app root

112. Modify BlobDownloader.exe.cfg
Change storage account and access key

113. Modify startup.cmd

114. Test in Emulator
Demo

115. The Deployment Package Size

116. Understanding startup.cmd
Startup.cmd like autoexec.bat, executing in VM start-up
You can do everything in here
Download something
Executing any executable file
Set Environment Variables
Just remember
This startup.cmd must end, so if you need execution
tomcat(startup.bat), you need use cmd /c to creating another
command line window

117. Understanding run.cmd
When startup.cmd is end, run.cmd will be executing
In samples, here will use
utilwhileproc.cmd java.exe
This command will keep detecting java is running or not
If java.exe is not in running status(not in process
explorer)
Fabric Controller will mark this VM is down
Switch to another VM

118. The Deploy Processing
VM Deploy
Run startup.cmd
Starting packages
Run run.cmd

119. So….
Anything can be done in command line will also can
be done in Worker Role
So
You can use Play Framework
You can use other Web Server, like apache or Jboss
you can use Apache Lucene as Search Engine

120. Caching Service as Session

121. Sticky Session的問題
當握有Session的VM/Role出現問題導致當機時, 該機
器上的Session將完全消失
也就是說這種Session處理方式是不具容錯性的
使用Caching Service來儲存Session的優點
Session儲存於外部機器
儲存Session的機器本身也是一個Cloud Service,所以具
備容錯及Replication能力

122. 怎麼做?
建立Dedicated Caching
下載Tomcat Session Manager
http://code.google.com/p/memcached-session-manager/
在Web Application專案中加入spymemcached.jar的
引用

123. 建立context.xml

124. 引入Tomcat Session Manager至
Deployment Project
修改Startup.cmd

125. Testing
Demo

126. Move Non-Web Application to
Cloud Service

127. 轉移Desktop Application至Cloud
Service

128. 怎麼做?
建立Windows Azure Deployment Project
輸出.JAR至Windows Azure Deployment Project的
approot目錄下
開啟必要的port(如果需要的話)

129. 修改startup.cmd

130. Web <-> Background Agent

131. 一個較為複雜的分散式架構
位於機器A的服務
接收需求, 並分配需求
User 到後端的Services Service A
Web
Application
位於機器B的服務
Service B
在這種架構下, Service A及B屬於內部
網路, 使用者無法直接連到

132. 怎麼做?
建立Service
建立Web Application
建立Deployment Project
建立另一個Worker Role

133. 怎麼做?
輸出Service的.JAR至ServerRole的approot目錄下
修改ServerRole的startup.cmd
添加必要的port(internal)

134. 怎麼做?
Web Application如何連接到Service??

135. Testing
Demo

136. Without Eclipse
Use Other IDE

137. Prepare
Install Ant
http://ant.apache.org/
Download Azure Start Kit for Java
https://github.com/MSOpenTech/WindowsAzureToolkitF
orEclipseWithJava
Make sure Antbin and java environment variables is
set.

138. Creating .WAR
(NetBeans 7)

139. Extract Start Kit for Java

140. Copy .WAR
Copy .war from dist folder (NetBeans 7)

141. Include JDK and Tomcat Zip files

142. Copy Sample startup.cmd
Delete approotstartup.cmd, rename startupApacheTomcat7.txt to
startup.cmd

143. Modify startup.cmd
Make sure all name is correct

144. Build
Use Ant to build project
In deploy project folder
ant -buildfile package.xml

145. Test in Emulator
Execution
DeployProjectEmulatorToolsRunInEmulator.cmd

146. Prepare for Cloud Package
Modify package.xml in DeployProject root

147. Change packageType
ant -buildfile package.xml

148. Upload Package to Cloud
Creating Cloud Service
Upload Sample Certification
The password is Password1

149. Upload Package to Cloud

150. Optimized again
War Hot Deploy

151. Understanding run.cmd
What’s whileproc.cmd ?
Writing own wardetecting.exe
Changing startup.cmd
Changing run.cmd
Deploy and testing
Try hot deploy

152. Resources
Develop Center
http://www.windowsazure.com/en-us/develop/java/
Azure Caching
http://msdn.microsoft.com/en-
us/library/windowsazure/gg278356.aspx
My Blog
http://www.dotblogs.com.tw/code6421/

153. Samples
http://www.code6421.com/BlogPics/
JavaAzureTrainingDemo.zip
Notes
JDK and Tomcat is not included