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Revelations of a 9iAS Implementation

Session id: 36645. Revelations of a 9iAS Implementation. Michael A. Kirchenbauer P.Eng. Infrastructure Architect Sierra Systems Consultants Inc. Agenda. Overview Project goals and infrastructure goals Infrastructure Implementation Key decisions and implications. Elements and challenges

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Revelations of a 9iAS Implementation

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  1. Session id: 36645 Revelations of a 9iAS Implementation Michael A. Kirchenbauer P.Eng.Infrastructure Architect Sierra Systems Consultants Inc.

  2. Agenda • Overview • Project goals and infrastructure goals • Infrastructure Implementation • Key decisions and implications. • Elements and challenges • SSO/OID • OHS/OC4J • EM • Webcache • Portal • Network • Performance • Testing • Lessons Learned and Recommendations • Q&A

  3. “Everything should be made as simple as possible, but not simpler.” - Albert Einstein

  4. Overview – The Project • Self service pension admin portal • Full pension plan based personalization • Based on customized pension package implemented in client/server configuration • Self maintenance capability (security, content) • Secure

  5. Overview – Project Goals • Project History • February 2002 to December 2002 • SUN H/W and ORACLE database shop • Initial elements included iFS and InterConnect • Integration with client/server package • Started in 9iAS v9.0.1 • 180 000 plus potential users across 9 groups • All functionality based in legacy system

  6. Overview Infrastructure Goals • Infrastructure goals • Secure data traffic externally (sensitive financial content) • Manageability (client maintainable) • Reasonably fault tolerant • Minimize cost • Scalable • Performant

  7. Infrastructure • Assumptions • Scale out less expensive than scale up • Architecture supports full suite of availability options and features • Constraining factors • Budget limited (fixed price project) • Sun hardware standard • Shared production environment (legacy) • SSL required (all external traffic)

  8. Infrastructure

  9. InfrastructureSSO/OID • Separate infrastructure machine • One DIT (Portal) • Extensions to OID schema tended to be problematic in DAS • Infrastructure server not clusterable or redundant

  10. InfrastructureOHS/OC4J • Single valued attributes (redirect, logging) • Portal clustering issues • DMS entries onerous - Log management and analysis

  11. InfrastructureEnterprise Manager • Performance issue • Apache directives limitation • Xvfb

  12. InfrastructureWebcache • Clustering easy to configure • Timeout coordination with OHS • Logging detail is limited • Portal control over caching • Issue with content invalidation

  13. InfrastructurePortal • Clustering limitation • Remote portal DB requires effort • Installation configuration differs from runtime configuration

  14. InfrastructureNetwork • Firewall issues (admin port quantity) • Capacity • LBR configuration coordination with Webcache • Hybrid SSL configuration

  15. InfrastructureApplication Performance • Configuration (connection pooling and life cycle of connections) • Database performance and configuration • Network impact (SSL overhead)

  16. Other ElementsTesting • Test tools essential • You need to deal with security (or not) • Products • IBM Rational TeamTest • Mercury Interactive LoadRunner • Open Source (JMeter,Ant,Ethereal)

  17. Some Lessons Learned • Adding servers to the pool is not trivial • Scalability cannot be based on 9iAS architecture alone • OID configuration constrained by Portal requirements and DAS • OHS limitations to standard Apache by EM • Hybrid SSL config not trivial • SSL Accelerator a MUST • Application performance related to pooling • Learn XML

  18. Recommendations • ptlasst – get friendly with it • Scale up rather than out • Prevent redirection to infrastructure • Extend base class attributes in OID rather than creation of new classes • Manage OHS logging (rotatelogs/cronolog) • Limit number of DADS and OHS processes to minimize database sessions and maximize the benefits of pooling

  19. Recommendations • If SSL is required beyond authentication, use an SSL accelerator. • If possible, wait for 9.0.4!

  20. Q & Q U E S T I O N S A N S W E R S A Additional Questions:MichaelKirchenbauer@SierraSystems.com

  21. Reminder – please complete the OracleWorld online session surveyThank you.

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