Server::Starter meets Java

Transcript

• 1. Server::Starter meets Java tokuhirom
• 2. Sever::Starter
• 3. a super daemon to hot- deploy server programs
• 4. Server::Starter (listen 80) Server socket Server socket Ready! Server socket Ready! SIGHUPSIGHUP
• 5. De facto standard for Perl webapp
• 6. I want to run Java web apps on Server::Starter
• 7. There is no fdopen() support on JVM
• 8. Reflection?
• 9. orz
• 10. After half a year …
• 11. System .inheritedChannel()
• 12. JVM can use Inherited Socket from parent process
• 13. for inetd support…
• 14. Behaviour: if (isSocket(fd 0) { return it; }
• 15. Hmm..
• 16. If Server::Starter use always fd 0, then it’s available.
• 17. (Normally, Server::Starter uses any available port.
• 18. DO IT
• 19. —port=8080=0 8080: port 0: file descriptor
• 20. Pros
• 21. Shutdown old process after new process is listening
• 22. You don’t need to care the ClassLoader related issues, like resource leaks.
• 23. Easy to upgrade JVM Version
• 24. Cons
• 25. Not works on OS X
• 26. Demo
• 27. https://github.com/tokuhir om/jetty-server_starter- sample
• 28. New Issue
• 29. —daemonize close STDIN;
• 30. —stop —start —restart
• 31. start_server $MODE …
• 32. Fin.