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IBM WebSphere Portal Version 6.0 Tuning Guide
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Abstract
Tuning a WebSphere Portal environment involves tuning and configuring the various systems and components of the environment. This chapter discusses some general concepts and details the specifics of the configurations used in our measurement environments. These specifics entail:
* configuring the application server and the resources defined for that application server
* determining the cloning strategy for expanding or extending the environment
* tuning the database(s) and database server
* tuning the directory server and its database
* tuning the web server
* tuning the operating system and network
* tuning the WebSphere Portal services

When tuning your individual systems, it is important to begin with a baseline, monitor the performance metrics to determine if any parameters should be changed and, when a change is made, monitor the performance metrics to determine the effectiveness of the change.
 
 
Content

PERFORMANCE TUNING THE ENVIRONMENT........................................................................................................3
Understanding the Environment......................................................................................................................................3
Application Server Tuning...............................................................................................................................................4
Additional Notes: JVM Maximum Heap Size Limits..........................................................................................................5
Datasource Tuning...........................................................................................................................................................6
Application Server Cloning..............................................................................................................................................7
Database Server Tuning....................................................................................................................................................7
IBM DB2 Enterprise Edition Database Parameter Tuning................................................................................................8
Recommended Database Maintenance..............................................................................................................................8
Other Database Considerations.......................................................................................................................................10
Directory Server Tuning.................................................................................................................................................10
Web Server Tuning.........................................................................................................................................................12
File Descriptor Limits....................................................................................................................................................13
Network Tuning.............................................................................................................................................................13
AIX Networking............................................................................................................................................................13
Windows 2003 Networking............................................................................................................................................14
Linux on System z Networking.......................................................................................................................................14
WebSphere Portal Service Properties............................................................................................................................14
Navigator Service..........................................................................................................................................................14
Registry Service............................................................................................................................................................15
Cache Manager Service..................................................................................................................................................15
WEBSPHERE PORTAL CACHES................................................................................................................................19
General Information......................................................................................................................................................19
Cache Configuration Properties.....................................................................................................................................19
Cache Usage Patterns.....................................................................................................................................................21
Cache Instances..............................................................................................................................................................22
Access Control..............................................................................................................................................................23
Portal User Management................................................................................................................................................28
Datastore......................................................................................................................................................................28
Model...........................................................................................................................................................................30
URL Mappings..............................................................................................................................................................35
Virtual Portals...............................................................................................................................................................35
WSRP...........................................................................................................................................................................36
Dynamic Assembly / Process Integration.......................................................................................................................38
Policy...........................................................................................................................................................................38
Collaboration Services.................................................................................................................................................39
Miscellaneous...............................................................................................................................................................40
Example Scenarios........................................................................................................................................................42
General Comments........................................................................................................................................................42
Small Number of Pages and Small Number of Users.....................................................................................................43
Small Number of Pages and Large Number of Users....................................................................................................43
Portals with Long Session Timeouts.............................................................................................................................44
Portals with Many Pages...............................................................................................................................................44
Appendix A. References..............................................................................................................................................46
Appendix B. Credits......................................................................................................................................................47
 
wp6_tuning_guide_finalversion1.3.pdf
 
 

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Document information
 Product categories:
 Software
 Organizational Productivity, Portals & Collaboration
 Portals
 WebSphere Portal
 Operating system(s):
  AIX, HP-UX, Linux, Solaris, Windows, i5/OS
 Software version:
  6.0
 Reference #:
  7008511
 IBM Group:
 Software Group
 Modified date:
 2009-05-18

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