On 26.03.2014 21:40, Matthew Miller wrote: > Old mossbacks should know this one, especially if they have database or > filesystem experience. An atomic transaction is one which can be safely > considered as a single event, and a) failure puts you back as if it didn't > happen and b) it is impossible for something else to access whatever is > affected and find a partial state -- you either get the original or the > update. > > A normal RPM or yum update is not atomic -- if you pull the plug partway > through, or if it breaks for some reason, you are left in a middle state, > and, if you access files belonging to packages being updated while the > transaction is in progress, you may get surprises. > > "Partially atomic" usually refers to systems where safe rollbacks happen on > failure, but where it might be possible to accidentally make an access while > the thing is being changed with unpredictable results. >
OK, these are the ancient Greeks' practices. But, when is Fedora Bosonic ETA? poma -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
