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

What breaks: three technology stack failures

Lesson 110 of 184 · 2 min

An expired certificate, a managed server that RESTARTED NIGHTLY FOR A MONTH, and a browser update that BROKE FORMS. THE EXPIRED CERTIFICATE IS THE PREDICTABLE ONE AND THE ONE THAT IS ALWAYS AN EMERGENCY. It fails on a date visible two years in advance, at midnight, with nobody able to log in. And it is total while every server-side check reports a healthy estate — which is why the first ten minutes go to investigating the application. Lesson 6, and one calendar entry removes it entirely. THE MANAGED SERVER THAT RESTARTED NIGHTLY FOR A MONTH IS THE ONE THAT WENT UNREPORTED. It restarted at 02:00 every night, when almost nobody was on it, so the handful of affected sessions were assumed to be flaky network. Nothing was raised, and the estate was one busy night away from the same restart happening at 14:00. Lesson 5's leak, and the reason it…

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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