On Mon, 09 Dec 2013 11:33:03 +0100 "Thomas Bächler" <tho...@archlinux.org> wrote:
> Am 07.12.2013 22:29, schrieb Robert Milasan: > > From systemd-analyze dump: > > > > Wants: systemd-udevd.service > > WantedBy: lvm2-activation-early.service > > WantedBy: lvm2-activation.service > > Before: lvm2-activation-early.service > > Before: sysinit.target > > After: systemd-udev-trigger.service > > After: systemd-journald.socket > > References: systemd-udevd.service > > References: systemd-udev-trigger.service > > References: sysinit.target > > References: systemd-journald.socket > > ReferencedBy: lvm2-activation-early.service > > ReferencedBy: lvm2-activation.service > > What's the distribution you are using? Using udevadm settle for lvm > is a waste of boot time and isn't even guaranteed to work (ask > Lennart, Kay or Greg K-H for the full speech). It's a hackish > workaround for LVM's inability to activate volumes automatically. > > Instead, a socket-activated lvmetad service should be used in > combination with the correct udev rules. The service files are > provided by LVM, but they reference weird redhat-specific units and > from what I saw have too many orderings, which results in slowing > everything down needlessly. > > Currently, I use 69-dm-lvm-metad.rules provided by LVM in combination > with the unit files [1] and [2] (derived from the redhat units > included in LVM). This is fast and works great for me, although > lvmetad has some annoying bugs which have been reported to me, but > which I could never reproduce. > > There is no way to make udevadm settle "faster" and the only solution > is (as Kay said already) is not using it. > > [1] > https://projects.archlinux.org/svntogit/packages.git/tree/trunk/lvmetad.service?h=packages/lvm2 > [2] > https://projects.archlinux.org/svntogit/packages.git/tree/trunk/lvmetad.socket?h=packages/lvm2 > The distro is openSUSE and we are using lvm2-activation-generator which comes with lvm2 package: https://git.fedorahosted.org/cgit/lvm2.git/tree/scripts/lvm2_activation_generator_systemd_red_hat.c -- Robert Milasan L3 Support Engineer SUSE Linux (http://www.suse.com) email: rmila...@suse.com GPG fingerprint: B6FE F4A8 0FA3 3040 3402 6FE7 2F64 167C 1909 6D1A
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