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Bug 857010 - Add dm/lvm related services to default preset file
Add dm/lvm related services to default preset file
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: systemd (Show other bugs)
18
All Linux
medium Severity medium
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Assigned To: systemd-maint
Fedora Extras Quality Assurance
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Depends On:
Blocks: 850196
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Reported: 2012-09-13 07:29 EDT by Peter Rajnoha
Modified: 2012-09-13 07:54 EDT (History)
8 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-09-13 07:47:19 EDT
Type: Bug
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Description Peter Rajnoha 2012-09-13 07:29:47 EDT
Please, if possible, add following in the 99-default.preset file:

  enable dm-event.socket
  enable lvm2-lvmetad.socket
  enable lvm2-monitor.service

dm-event.socket + lvm2-monitor.service is an essential part for monitoring the use of lvm2 snapshots and mirrors (the dm-event.socket also as a service for any other potential device-mapper subsystem that needs its devices to be monitored).

The lvm2-lvmetad.socket is essential to instantiate the lvmetad daemon that keeps track of metadata and PVs that appear/disappear on a system and to avoid further scans, making lvm2 to run more efficiently (also removing the dependency on udev-settle).

(Note: the dmeventd daemon (dm-event.socket) and the lvmetad daemon (lvm2-lvmetad.socket) are instantiated on-demand, on the first access.)

If I get it right, this should be OK with the Fedora policy https://fedoraproject.org/wiki/Starting_services_by_default (but correct me if I'm wrong).
Comment 1 Václav Pavlín 2012-09-13 07:45:10 EDT
Already added in http://lists.fedoraproject.org/pipermail/scm-commits/2012-September/861806.html
Comment 2 Peter Rajnoha 2012-09-13 07:47:19 EDT
Great! I guess this is going to be in F18 as well, right? ...closing the bug then.
Comment 3 Václav Pavlín 2012-09-13 07:54:42 EDT
Actually, I would say the commit was made to F18 branch

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