Description of problem: dnf has a cron job in: /etc/cron.hourly/dnf-makecache.cron The runs a makecache hourly. On a laptop system this is quite draining. Additionally, hourly rebuilds are quite aggressive, this should be daily. The script should be more like 0anacron in that: #! /bin/bash # Do not run jobs when on battery power if test -x /usr/bin/on_ac_power; then /usr/bin/on_ac_power &> /dev/null if test $? -eq 1; then exit 0 fi fi LOGFILE=/var/log/dnf-makecache.cron STAMP=`date +%c`: echo $STAMP >>$LOGFILE /usr/bin/dnf makecache >>$LOGFILE
(In reply to comment #0) > Additionally, hourly rebuilds are > quite aggressive, this should be daily. Please see bug 892064 for this particular issue. The time to check for expired metadata has been increased to 3 hours. That doesn't mean they are redownloaded and the cache rebuilt every three hours, only when the metadata actually expire (which is even as little as 6 hours for some repos, with notable example of Fedora Updates).
> The script should be more like 0anacron in that: > > #! /bin/bash > > # Do not run jobs when on battery power > if test -x /usr/bin/on_ac_power; then > /usr/bin/on_ac_power &> /dev/null > if test $? -eq 1; then > exit 0 > fi > fi > > LOGFILE=/var/log/dnf-makecache.cron > STAMP=`date +%c`: > echo $STAMP >>$LOGFILE > /usr/bin/dnf makecache >>$LOGFILE Fixed by 04d030a, the automatic metadata syncing will never run whenver on a battery system, starting with dnf-0.3.1. Thanks for the report and a nice tip towards a solution (didn't know about 'on_ac_power').