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Oracle Apps DBA: Keeping E-Business Suite Alive · Module 10 · WebLogic and the technology stack

The admin server and the managed servers

Lesson 103 of 184 · 2 min

What each does, WHICH ONES USERS DEPEND ON, and what happens WHEN THE ADMIN SERVER IS DOWN AND NOTHING ELSE IS. WebLogic has two kinds of server and confusing them produces the wrong response to an outage. THE ADMIN SERVER IS THE MANAGEMENT CONSOLE AND IT SERVES NO USERS AT ALL. It is where configuration is changed and where the other servers are started and stopped from. No business function runs on it. THE MANAGED SERVERS RUN THE APPLICATION AND THEY ARE WHAT USERS DEPEND ON. Different ones serve different parts of EBS — one for the professional interface, others for self-service and the framework pages. So which managed server is down determines who complains, which is Module 4 Lesson 1's question arriving one layer down. AND THE CASE IN THE TITLE IS THE ONE WORTH INTERNALISING: THE ADMIN SERVER CAN BE DOWN WHILE EVERY USER WORKS PERFECTLY. Managed servers…

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In this module: Module 10 · WebLogic and the technology stack

  1. 1What sits between the user and EBS
  2. 2The admin server and the managed servers
  3. 3Starting, stopping and the order
  4. 4Reading a WebLogic log
  5. 5Memory, and the server that keeps restarting
  6. 6Certificates and HTTPS
  7. 7Java versions and the technology stack
  8. 8The load balancer, and who owns it
  9. 9What breaks: three technology stack failures
  10. 10Lab briefing · Follow one request all the way down