Red Hat Bugzilla – Bug 1171450
man-db.service takes a considerable time to finish at boot (~ 6sec on an SSD)
Last modified: 2015-12-02 11:39:01 EST
After upgrading to F21, man-db now uses a systemd .timer to run its daily update of the database; this timer starts right at boot and I've noticed some delay before the graphical interface actually comes up. Looking at the output of 'system-analyze blame' it turns out man-db.service takes about 6sec to finish, this is on a fast SSD; I imagine it'll take longer on an HDD (I haven't tested).
Since there's no urgent need (AFAICS) to update the man db right at boot, I think the issue can be mitigated by delaying the expiry of the timer e.g. by adding:
that means it'll run 5min after the timer has been activated, which seems like enough time for the boot process to finish and the graphical interface to have come up.
(Of course this only happens once per day on the very first boot).
Apparently I am wrong here; man-db.service is still run at boot even with the above modification to the .timer file, so the timer only controls when subsequent runs are done.
From the systemd.timer man page:
Takes a boolean argument. If true, the time when the service unit was last
triggered is stored on disk. When the timer is activated, the service unit is
triggered immediately if it would have been triggered at least once during the
time when the timer was inactive. This is useful to catch up on missed runs of
the service when the machine was off. Note that this setting only has an
effect on timers configured with OnCalendar=.
maybe that's why adding OnActiveSec doesn't have an effect on delaying it at boot? (I still can't fully get my head around the stuff in the man page, so I apologize in advance for my rambling, I am just thinking aloud here).
thanks for every note you have written. Another option is to take the service file back and use other timer/cron, that is systemd independent. I will get to this issue later. Thanks anyway.
man-db-126.96.36.199-13.fc21 has been submitted as an update for Fedora 21.
* should fix your issue,
* was pushed to the Fedora 21 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing man-db-188.8.131.52-13.fc21'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
man-db-184.108.40.206-13.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
Converting back to crontabs is not a fix. Why not actually fix the issue with the systemd timer unit properly.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
This message is a reminder that Fedora 21 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 21. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora 'version'
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version.
Thank you for reporting this issue and we are sorry that we were not
able to fix it before Fedora 21 is end of life. If you would still like
to see this bug fixed and are able to reproduce it against a later version
of Fedora, you are encouraged change the 'version' to a later Fedora
version prior this bug is closed as described in the policy above.
Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
more recent Fedora release includes newer upstream software that fixes
bugs or makes them obsolete.
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.
If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
Thank you for reporting this bug and we are sorry it could not be fixed.