Red Hat Bugzilla – Bug 42353
RFE: Replace sysV-init with rcorder
Last modified: 2014-03-16 22:20:58 EDT
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.3-XFS-3 i686; en-US; rv:0.9+) Gecko/20010520 Description of problem: NetBSD uses a script called "rcorder" to dynamically order the rc*.d startup scripts. Scripts specify RPM-like dependencies (REQUIRES:, PROVIDES:), and rcorder automatically orders the scripts such that all the dependencies are satisfied. When shutting down, you just reverse the list. This is far more elegant than manually ordering things based on filenames (S00, S11, S14, ...). Obviously, there are several tools that would need to be dropped or modified to work with the new scheme (/etc/rc, chkconfig, GUI config tools), but I think the elegance and flexability would be a big win. If you don't feel like grabbing NetBSD to look at this, I've ported it to linux. You can find my port at: http://www.larsshack.org/dist/rcorder/rcorder-current.tar.gz The archive includes a spec file. How reproducible: Always Steps to Reproduce: Grab the tar archive, build, run... Additional info: The tar archive includes a copy /etc/rc.d from a NetBSD system for demonstration purposes.
Created attachment 19690 [details] linux port of rcorder
FreeBSD recently adopted this as well. The nice thing about dependency-ordered startup is that you can do a number of things in parallel and get your system up quicker. http://www.bsdforums.org/forums/showthread.php?threadid=9412 I'm thinking about getting the linux port up and running locally - it would be awesome if RedHat could adopt this system.
In some informal testing here, the startup time was so overwhelmingly dependent on disk access that parallelization didn't really help much.
Closing out bugs on older, no longer supported releases. It's highly unlikely that a straight switch to rcorder will ever be done.