1258868 – [RFE] dbus should reload configuration automatically (inotify)

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Bug 1258868 - [RFE] dbus should reload configuration automatically (inotify)

Summary: [RFE] dbus should reload configuration automatically (inotify)

Keywords:
Status:	CLOSED WONTFIX
Alias:	None
Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	dbus
Sub Component:
Version:	7.1
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	rc
Target Release:	---
Assignee:	David King
QA Contact:	Desktop QE
Docs Contact:
URL:
Whiteboard:
Duplicates (1):	1308549 (view as bug list)
Depends On:
Blocks:	1218420
TreeView+	depends on / blocked

Reported:	2015-09-01 12:30 UTC by Miroslav Vadkerti
Modified:	2019-09-11 17:32 UTC (History)
CC List:	7 users (show)
Fixed In Version:
Doc Type:	Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed:	2019-09-11 17:32:29 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)

Description Miroslav Vadkerti 2015-09-01 12:30:13 UTC

Description of problem:
Currently when a new dbus configuration file is added by a newly installed application - dbus must be restarted to take the changes into affect.

Dbus should use inotify to monitor its configuration paths and reload the configuration automatically. For example polkit does this.

Version-Release number of selected component (if applicable):
dbus-1.6.12-13.el7

How reproducible:
100%

Steps to Reproduce:
1. Add new configuration file

Actual results:
Dbus reloads config automatically

Expected results:
Dbus runtime config not changed

Comment 1 Michal Sekletar 2015-09-02 10:56:29 UTC

I don't think this is the right approach. In order for new configuration to take effect daemon must be *explicitly* asked to do so. Config must not be applied right after admin hits save in $EDITOR.

Also note that D-Bus demon supports partial reload of its configuration, man page says following,

"SIGHUP  will cause the D-Bus daemon to PARTIALLY reload its configuration file and to flush its user/group information caches. Some configuration changes would require kicking all apps off the bus; so they will only take effect if you restart the daemon. Policy changes should take effect with SIGHUP."

Comment 2 Miroslav Vadkerti 2016-01-13 08:07:48 UTC

(In reply to Michal Sekletar from comment #1)
> I don't think this is the right approach. In order for new configuration to
> take effect daemon must be *explicitly* asked to do so. Config must not be
> applied right after admin hits save in $EDITOR.

I do not mind if the reload would be explicit.

> 
> Also note that D-Bus demon supports partial reload of its configuration, man
> page says following,

Unfortunately does not work at all for me (I am trying to add a new dbus service file which I do not find a very intrusive operation), see bug 1258865

> 
> "SIGHUP  will cause the D-Bus daemon to PARTIALLY reload its configuration
> file and to flush its user/group information caches. Some configuration
> changes would require kicking all apps off the bus; so they will only take
> effect if you restart the daemon. Policy changes should take effect with
> SIGHUP."

Comment 4 David King 2016-02-16 13:51:49 UTC

*** Bug 1308549 has been marked as a duplicate of this bug. ***

Comment 8 Matthias Clasen 2019-09-11 17:32:29 UTC

D-Bus behaves as documented. We can't just change this behavior.

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