Control: tags -1 +pending - moreinfo Control: forwarded -1 https://github.com/mvo5/unattended-upgrades/pull/272
Hi Maurizio, Bálint Réczey <bal...@balintreczey.hu> ezt írta (időpont: 2020. ápr. 26., V, 12:41): > > Control: block -1 by 711128 > Control: tags -1 confirmed moreinfo > > Hi Maurizio, > > Maurizio Di Pietro <dc1...@gmail.com> ezt írta (időpont: 2020. ápr. > 26., V, 10:57): > > > > Package: unattended-upgrades > > Version: 2.3 > > Severity: important > > > > Dear Maintainer, > > > > after latest system upgrade , i noticed this behavior. > > In the bugtracker i noticed there was a similar behavior described in > > > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=899366 > > > > but it had been fixed. Maybe a regression. > > Unattended-upgrades 1.18 attempted to fully rely on APT's resolver for > upgrades, but unfortunately APT's resolver can't always find the > solution. > Unattended-upgrades thus tries to work around APT's resolver's failure > and falls back to adjusting package dependencies which can take long > if there are many upgradable/broken packages and this situation can > occur frequently in unstable. > > Please attach the output of unattended-upgrades -d -v to see if u-u > spends its time in adjusting packages to help APT's resolver. It were the adjustments that took very long indeed, but was a bug in the fallback code that triggered way more adjustments than needed, adding a slow O(n^2) component. The bug will be fixed, making unattended-upgrades finishing in minutes rather than tens of minutes or hours sometimes in unstable. Cheers, Balint
