Moving to the APEX Listener
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Presentation of 2012 why you should move to the Oracle APEX Listener (ORDS) (compared to Apache and EPG).
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Moving to the APEX Listener
- 1. Copyright © 2010 Apex Evangelists • http://apex-evangelists.com Moving to the APEX Listener Dimitri Gielis
- 2. Copyright © 2010 Apex Evangelists http://apex-evangelists.com About me 2
- 5. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Agenda 5
- 6. Copyright © 2010 Apex Evangelists http://apex-evangelists.com What Is This Presentation About • Answer to two questions: • Is the APEX Listener a worthy alternative (to EPG/OHS)? • What advantages does the APEX Listener give me? 6
- 7. Copyright © 2010 Apex Evangelists http://apex-evangelists.com What It’s Not • A definitive guide of the APEX Listener • How to install a webserver 7
- 8. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Outline • APEX Architecture • The three choices • APEX Listener Performance • APEX Listener Features • APEX Listener 2.0 and the Oracle Cloud 8
- 9. Copyright © 2010 Apex Evangelists http://apex-evangelists.com APEX Architecture 9
- 10. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Architecture Overview 10
- 11. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Page Processing 11
- 12. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Multi-Tenant Saas 12
- 13. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Architecture Overview 13
- 14. Copyright © 2010 Apex Evangelists http://apex-evangelists.com The three choices 14
- 15. Copyright © 2010 Apex Evangelists http://apex-evangelists.com 1) Oracle Http Server (Ohs) 15
- 16. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Ohs Advantages • Long history (from 1999/2000) (shipped with Oracle DB 8.1.7) • A lot of help available for Apache • Many modules to extend Apache • Great configuration options • Easy debugging (check log files) 16
- 17. Copyright © 2010 Apex Evangelists http://apex-evangelists.com 17 Ohs Installation Consideration Webserver Database ??? • Same machine • Less moving parts • Lower Latency • Different Machine • More secure • Resilience (out of control OHS processes don’t affect DB machine) • Easier to scale out (add more webservers) • Check license (!)
- 18. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Ohs Disadvantages • mod_plsql not longer developed • mod_plsql disabled or not available on some environments • e.g. E-Business Suite R12 • No native GUI • Configuration through text files e.g. dads.conf • Might be extra cost 18
- 19. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Ohs Hints & Tips • Obfuscate the password in dads.conf • Make full use of Apache features • Virtual hosts • Webserver compression • Expiry Headers 19
- 20. Copyright © 2010 Apex Evangelists http://apex-evangelists.com 2) Embedded Pl/Sql Gateway (Epg) 20
- 21. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Epg Advantages • Quick and easy setup • webserver inside the Database • available in DB 10gR2 and higher 21
- 22. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Epg Disadvantages • More database hits • More difficult to debug (through API) • Less features / things to tweak 22
- 23. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Epg Hints & Tips • Set SHARED_SERVERS database parameters higher e.g. 15 • Use of dbms_epg package 23
- 24. Copyright © 2010 Apex Evangelists http://apex-evangelists.com 3) Apex Listener (Standalone) 24
- 25. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Advantages • Oracle actively developing it • Recommended architecture • GUI Interface for configuration • Multiple deployment options (standalone,WLS, Glassfish, OC4J) • Improvements over mod_plsql (32K limit) • New features in APEX (only available when APEX Listener is used) 25
- 26. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Advantages • E-Business Suite only certified with the APEX Listener • Integration with Java 26
- 27. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Disadvantages • Not used that much (yet) • Only Oracle resources available (compared to others with Apache) • Waiting for Oracle for new features (personally don’t mind) 27
- 28. Copyright © 2010 Apex Evangelists http://apex-evangelists.com 3) Apex Listener & Reverse Proxy 28
- 29. Copyright © 2010 Apex Evangelists http://apex-evangelists.com APEX Listener Performance 29
- 30. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance • Want to compare different webservers • OHS 11g (port: 7777) • EPG installed (port: 8888) • APEX Listener 1.1 on Glassfish (port: 8080) • APEX Listener 2.0 EA (port: 8081) • All in same environment (see next slide) 30
- 31. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance • The environment (VM) • Oracle Linux 2.6.32-100 x86/64 • Oracle Database 11.2.0.2 • APEX 4.1.1 • Sample application: Product Portal • Authentication set to “No Authentication” 31
- 32. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance • Test scenario • JMeter as Proxy to record navigation through Sample app • Configure testplan • Run the testplan (next slide) for every webserver 32
- 33. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance 33
- 34. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance Results • OHS + mod_plsql • EPG • APEX Listener 1.1 34
- 35. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener Performance Results • APEX Listener 1.1 • APEX Listener 2.0 35
- 36. Copyright © 2010 Apex Evangelists http://apex-evangelists.com APEX Listener Features 36
- 37. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 1.1 Features • No 32K limit • Native Excel upload • Integrated security in front of the database • Caching • Pre- and Post Processing • Debugging en Logging features • RESTfull Webservices (Resource Templates) 37
- 38. Copyright © 2010 Apex Evangelists http://apex-evangelists.com APEX Listener 2.0 & Oracle 38
- 39. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 39 • Complete new configuration screen
- 40. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 • RESTful services are much tighter integrated to APEX yet still standalone for non-APEX shops • RESTful OAuth 2.0 integration 40
- 41. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Restful Services In Apex 4.1.1 41
- 42. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 • Built in virus scanner integration via ICAP 42
- 43. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 43 • Configuration ofVirus scanner
- 44. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 • Multi DB Routing in URLs based on url regex matching. For example: • http://mydomain1.myhost.com/ -> goes to DB 1 • http://mydomain1.myhost.com/apex3 -> goes to DB 3 • http://mydomain2.myhost.com/ -> goes to DB 2 44
- 45. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 45 • Multiple environments configuration screen
- 46. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 • FOP 2 PDF integration 46
- 47. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Apex Listener 2.0 & Oracle Cloud 47
- 48. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Summary 48
- 49. Copyright © 2010 Apex Evangelists http://apex-evangelists.com Summary • APEX Architecture • The three choices • Why the APEX Listener (Performance, Features) • APEX Listener 2.0 and the Oracle Cloud 49