Enterprise Caching Solutions using WebSphere DataPower SOA Appliances and WebSphere ...

186 Pages·2013·3.13 MB·English

Front cover
IBM WebSphere
® ®
Enterprise Caching Solutions using IBM
WebSphere DataPower SOA Appliances
and IBM WebSphere eXtreme Scale
Introduction to caching
Concepts and considerations
Real-world scenarios
Jan Bajerski
Ulas Cubuk
Fernando Ewald
Susan Hanson
Kris (Krzysztof) Kobylinski
Jun Guo Ku
Anton Litvinov
Nikolay Marin
Dmitry Savustjan
ibm.com/redbooks

International Technical Support Organization
Enterprise Caching Solutions using WebSphere
DataPower SOA Appliances and WebSphere eXtreme
Scale
April 2013
SG24-8043-00
Note: Before using this information and the product it supports, read the information in “Notices” on
pagevii.
First Edition (April 2013)
This edition applies to:
(cid:2) WebSphere® eXtreme Scale, Version 8, Release 5, Modification 0
(cid:2) WebSphere Message Broker, Version 8, Release 0, Modification 0, Fix Pack 1
(cid:2) WebSphere SOA DataPower Appliance XC10
(cid:2) WebSphere SOA DataPower Appliance XI52
(cid:2) IBM Worklight, Version 5.0
© Copyright International Business Machines Corporation 2013. All rights reserved.
Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule
Contract with IBM Corp.
Contents
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
The team who wrote this book. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Now you can become a published author, too! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
Comments welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
Stay connected to IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Chapter 1. Introduction to IBM Enterprise Caching Technologies. . . . . . . . . . . . . . . . . 1
1.1 Overview of caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Benefits of caching to an enterprise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.1 Cost saving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2.2 Scalability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2.3 Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.4 Failover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.5 Flexibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Common caching patterns and scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.1 Caching patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.2 Caching scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Overview of IBM WebSphere eXtreme Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Overview of IBM WebSphere DataPower XC10 Appliance . . . . . . . . . . . . . . . . . . . . . 11
1.6 WebSphere eXtreme Scale versus DataPower XC10 Appliance . . . . . . . . . . . . . . . . . 12
Chapter 2. Concepts and considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1 Basic concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.1 Container server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.2 Catalog server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.3 Maps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.4 Map sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.5 Object grids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.6 Partitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1.7 Shards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2 Caching architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.3 Configuration considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.3.1 Grids versus maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.3.2 Dynamic versus static maps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.3 Number of map sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.4 Synchronous versus asynchronous replicas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.3.5 Multi-Master Replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.3.6 Number of replicas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.3.7 Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 3. Enterprise caching in a mobile environment. . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Solution overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2 Integration of IBM Worklight and WebSphere eXtreme Scale . . . . . . . . . . . . . . . . . . . 25
3.2.1 Integration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.2 Running IBM Worklight server on a Liberty profile . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3 Integrating IBM Worklight and the XC10 appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
© Copyright IBM Corp. 2013. All rights reserved. iii
3.4 Using caching in mobile applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.4.1 Worklight application overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.4.2 Developing your mobile application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4.3 Reasons to use caching with a mobile application . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.4 Adding caching to the Company Address Book scenario. . . . . . . . . . . . . . . . . . . 34
3.4.5 Using caching in the address book application. . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.4.6 Deployment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.4.7 Debugging and testing the cache. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.5 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Chapter 4. Enterprise caching in an ESB environment. . . . . . . . . . . . . . . . . . . . . . . . . 45
4.1 Caching with an enterprise service bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.1.1 Accessing an external cache from an ESB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.2 DataPower XC10 as a cache solution for DataPower XI52 . . . . . . . . . . . . . . . . . . . . . 46
4.2.1 Introduction to the business scenario. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2.2 Solution overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2.3 Technical implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.2.4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.3 DataPower XC10: Side cache for WebSphere Message Broker . . . . . . . . . . . . . . . . . 73
4.3.1 Introduction to the business scenario. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3.2 Solution overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3.3 Caching options in WebSphere Message Broker. . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3.4 Technical implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.3.5 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Chapter 5. Enterprise caching in an extreme transaction processing environment . 83
5.1 Customer problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.2 Solution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.2.1 Application environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.2.2 Application requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.2.3 Proposed technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5.2.4 Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
5.2.5 Simulating the client scenario. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.2.6 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
5.3 Benefits to a client. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
5.4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Chapter 6. Installation and configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
6.1 Installing products with IBM Installation Manager. . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
6.2 Planning and installing IBM WebSphere eXtreme Scale . . . . . . . . . . . . . . . . . . . . . . 104
6.2.1 Planning the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
6.2.2 Installing IBM WebSphere eXtreme Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
6.2.3 Understanding WebSphere eXtreme Scale parameters. . . . . . . . . . . . . . . . . . . 108
6.2.4 Running WebSphere eXtreme Scale servers on Liberty profile servers. . . . . . . 113
6.3 Configuring IBM WebSphere DataPower XC10 Appliance. . . . . . . . . . . . . . . . . . . . . 118
6.3.1 Initialization and basic configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
6.3.2 Creating a data grid on the WebSphere DataPower XC10. . . . . . . . . . . . . . . . . 119
6.3.3 Using the monitoring from the XC10 console . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
6.4 Installing IBM Worklight 5.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
6.4.1 Installing IBM Worklight Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
6.4.2 Installing IBM Worklight Studio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
6.5 Using the Liberty profile server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
6.5.1 Creating a Liberty profile server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
6.5.2 Configuring a Liberty Profile Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
iv Enterprise Caching Solutions using WebSphere DataPower SOA Appliances and WebSphere eXtreme Scale
6.5.3 Starting a Liberty profile server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Appendix A. Additional files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Additional files for Chapter 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
XSCache.java. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Search-impl.js. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Sample Worklight ant build script . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Additional files for Chapter 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
CLIENTINFO.wsdl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
ClientInfo.xsd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
ClientInfoBE.wsdl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
cache-config.xml. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
cache-get.xsl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
cache-set.xsl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
backend-stuff.xsl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
cache-util.xsl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Source code for Chapter 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
objectgrid.xml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
deployment.xml. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
OrderRecord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
TIC.java. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
OrderQueueingAgent.java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
OrderQueueing.java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
OrderProcessingAgent.java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
OrderProcessing.java. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
OrderProcessingRunnable.java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Contents v
vi Enterprise Caching Solutions using WebSphere DataPower SOA Appliances and WebSphere eXtreme Scale
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programs are written. These examples have not been thoroughly tested under all conditions. IBM, therefore,
cannot guarantee or imply reliability, serviceability, or function of these programs.
© Copyright IBM Corp. 2013. All rights reserved. vii
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viii Enterprise Caching Solutions using WebSphere DataPower SOA Appliances and WebSphere eXtreme Scale