On 05/04/11 05:04, Clint Byrum wrote: > I'm not totally against this for SRU, but I would like to make sure we are > sure that it is entirely necessary before going forward.
Understood. > First, I would like to refute the statement that it is "impossible". > > This can be achieved on a script-specific level with just sed: > > sed -i.bak -e 's/^start on/#start on/;s/^\s*and/# and/;' > /etc/init/mysql.conf > > This is not destructive, the original file is preserved, though it is > definitely a hack to get around the missing functionality in version > 0.6.5 of upstart. This does provide an avenue to allowing the disabling of jobs, and this is essentially how we've been hacking around this, my concern is that a single missed merge at package upgrade would result in data corruption in our clustered environments (I work for an ISV and ship numerous systems to clients based on Ubuntu Server). The migration to Lucid for these clusters has been particularly painful do to the introduction of Upstart, since we need to modify the jobs of every cluster-controlled service under Upstart, and maintain vigilance during upgrades. > It is not 100% reliable, as users may have customized the start on > conditions, but that can also be detected and dealt with. Furthermore, the > format of the upstart job is stable enough that one could write a script > to parse the full start on and disable the lines that way. A generic parser might be an option, though if this doesn't make it through SRU, I think my solution will have to be to port this feature and maintain the package in our private override repo, though I'd prefer not to be maintaining a core infrastructure package that way. The script hacking is just too brittle to be a long-term solution for us. > Meanwhile, cherry picking features like this into such a critical piece > of system infrastructure like init should not be done lightly. I certainly understand this, however I do see the lack of standard job control for core services as a serious regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/94065 Title: init: add non-destructive means to disable a job -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
