On 07/08/2018 02:15 AM, Michał Górny wrote: > Dnia 8 lipca 2018 09:14:06 CEST, Zac Medico <zmed...@gentoo.org> napisał(a): >> On 07/07/2018 11:53 PM, Michał Górny wrote: >>> Dnia 8 lipca 2018 08:08:31 CEST, Zac Medico <zmed...@gentoo.org> >> napisał(a): >>>> Please review. >>>> >>>> Title: Portage rsync hardlink support >>>> Author: Zac Medico <zmed...@gentoo.org> >>>> Posted: 2018-07-11 >>>> Revision: 1 >>>> News-Item-Format: 2.0 >>>> Display-If-Installed: sys-apps/portage >>>> >>>> For users of the rsync tree, beginning with sys-apps/portage-2.3.42, >>>> the default behavior for sync operations will use hardlinks in order >>>> to ensure that a repository remains in a valid state if something >>>> goes wrong [1]. For example, if signature verification fails during >> a >>>> sync operation, the new hardlink behavior will preserve the previous >>>> state of the repository. >>>> >>>> The new behavior may conflict with configurations that restrict the >>>> use of hardlinks, such as overlay filesystems. Therefore, users will >>>> have to set "sync-allow-hardlinks = no" in repos.conf if they have >>>> a configuration that restricts the use of hardlinks, but this should >>>> not be very common: >>>> >>>> [DEFAULT] >>>> sync-allow-hardlinks = no >>>> >>>> [1] https://bugs.gentoo.org/660410 sys-apps/portage: use rsync >>>> --link-dest to implement atomic repository updates (and abort if >>>> signature verification fails) >>> >>> Is safe git syncing implemented already? If not, maybe finish it >> first and cover both with a single news item. Git is going to be more >> efficient here, so people may want to learn they have an alternative. >> >> Yeah there's already a patch for git sync [1] but I'd rather not make >> this news item more complicated than it needs to be. I wouldn't have >> bothered with a news item except that I want to give people some >> warning >> in case they are using overlayfs [2]. I think the efficiency difference >> between rsync and git here are pretty negligible for most people. > > Are you sure about that? That might have been the case so far but this > hardlink tree may actually tip the balance.
Even if it takes twice a long (which it doesn't), the difference is negligible for most people because they usually don't sync more than once per day. -- Thanks, Zac
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