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.