Bug 1118157 - chronyd.service strange dependencies
Summary: chronyd.service strange dependencies
Alias: None
Product: Fedora
Classification: Fedora
Component: chrony
Version: 20
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Miroslav Lichvar
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2014-07-10 06:10 UTC by Aleksandar Kostadinov
Modified: 2019-03-11 08:10 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-09-12 14:33:58 UTC

Attachments (Terms of Use)

Description Aleksandar Kostadinov 2014-07-10 06:10:21 UTC
chronyd.service lists:
After=ntpdate.service sntp.service ntpd.service

why ntpd.service is in both After and Conflicts? Shouldn't chronny be specified to start after network is up through network.service of NetworkManager.service?

Comment 1 Miroslav Lichvar 2014-07-10 09:45:06 UTC
After=ntpd.service is needed to not start chronyd before ntpd exited. Without it "systemdctl start chronyd" when ntpd was running sometimes failed as chronyd tried to bind to port 123 before ntpd released it.

According to the following document, network.service is not really useful here.


Does it cause any problems for you?

Comment 2 Aleksandar Kostadinov 2014-07-10 12:50:53 UTC
Interesting read, thanks. I don't see any problems. But reading http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/ it seems to me chronyd is good to have After=network.target

I read it like that.

Comment 3 Miroslav Lichvar 2014-07-10 13:03:41 UTC
I'm not sure. To me it looks like adding After=network.target won't make a difference as chronyd is using UDP only and can be stopped after network, it shouldn't really matter.

Comment 4 Aleksandar Kostadinov 2014-07-10 13:31:49 UTC
If there are no TCP connections used, then you are right.

Comment 5 Miroslav Lichvar 2014-09-12 14:33:58 UTC
Ok, I'm closing this bug. If there are any cases where the dependency on the network target would be useful, please reopen.

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