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git://sourceware.org/git/lvm2.git
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d558b3ad7e
Port the old pvscan -aay scanning optimization to vgchange -aay. The optimization uses pvs_online files created by pvscan --cache to derive a list of devices to use when activating a VG. This allows autoactivation of a VG to avoid scanning all devices, and only scan the devices used by the VG itself. The optimization is applied internally using the device hints interface. The new option "--autoactivation event" is given to pvscan and vgchange commands that are called by event activation. This informs the command that it is being used for event activation, so that it can apply checks and optimizations that are specific to event activation. Those include: - skipping the command if lvm.conf event_activation=0 - checking that a VG is complete before activating it - using pvs_online files to limit device scanning
99 lines
2.4 KiB
Bash
99 lines
2.4 KiB
Bash
SKIP_WITH_LVMPOLLD=1
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SKIP_WITH_LVMLOCKD=1
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RUNDIR="/run"
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test -d "$RUNDIR" || RUNDIR="/var/run"
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PVS_ONLINE_DIR="$RUNDIR/lvm/pvs_online"
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VGS_ONLINE_DIR="$RUNDIR/lvm/vgs_online"
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PVS_LOOKUP_DIR="$RUNDIR/lvm/pvs_lookup"
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_clear_online_files() {
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# wait till udev is finished
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aux udev_wait
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rm -f "$PVS_ONLINE_DIR"/*
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rm -f "$VGS_ONLINE_DIR"/*
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rm -f "$PVS_LOOKUP_DIR"/*
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}
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. lib/inittest
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aux prepare_devs 4
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vgcreate $vg1 "$dev1" "$dev2"
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vgcreate $vg2 "$dev3"
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pvcreate "$dev4"
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lvcreate -l1 -n $lv1 -an $vg1
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lvcreate -l1 -n $lv1 -an $vg2
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# With no pv online files, vgchange that uses online files
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# will find no PVs to activate from.
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_clear_online_files
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not vgchange -aay --autoactivation event $vg1
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not vgchange -aay --autoactivation event $vg2
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vgchange -aay --autoactivation event
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check lv_field $vg1/$lv1 lv_active ""
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check lv_field $vg2/$lv1 lv_active ""
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# incomplete vg will not be activated
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pvscan --cache "$dev1"
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vgchange -aay --autoactivation event $vg1
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# VG foo is incomplete
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check lv_field $vg1/$lv1 lv_active ""
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# complete vg is activated
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pvscan --cache "$dev3"
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vgchange -aay --autoactivation event $vg2
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check lv_field $vg2/$lv1 lv_active "active"
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pvscan --cache "$dev2"
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vgchange -aay --autoactivation event $vg1
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check lv_field $vg1/$lv1 lv_active "active"
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vgchange -an $vg1
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vgchange -an $vg2
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# the same tests but using command options matching udev rule
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_clear_online_files
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pvscan --cache --listvg --checkcomplete --vgonline --autoactivation event --udevoutput --journal=output "$dev1"
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vgchange -aay --autoactivation event $vg1
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# VG foo is incomplete
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check lv_field $vg1/$lv1 lv_active ""
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pvscan --cache --listvg --checkcomplete --vgonline --autoactivation event --udevoutput --journal=output "$dev3"
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vgchange -aay --autoactivation event $vg2
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check lv_field $vg2/$lv1 lv_active "active"
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pvscan --cache --listvg --checkcomplete --vgonline --autoactivation event --udevoutput --journal=output "$dev2"
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vgchange -aay --autoactivation event $vg1
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check lv_field $vg1/$lv1 lv_active "active"
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vgchange -an $vg1
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vgchange -an $vg2
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# with a full pvscan --cache
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_clear_online_files
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pvscan --cache
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check lv_field $vg1/$lv1 lv_active ""
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check lv_field $vg2/$lv1 lv_active ""
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vgchange -aay --autoactivation event $vg1
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vgchange -aay --autoactivation event $vg2
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check lv_field $vg1/$lv1 lv_active "active"
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check lv_field $vg2/$lv1 lv_active "active"
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vgchange -an $vg1
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vgchange -an $vg2
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vgremove -f $vg1
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vgremove -f $vg2
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