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478 lines
10 KiB
Bash
478 lines
10 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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SKIP_WITH_LVMPOLLD=1
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# hints are currently disabled with lvmlockd
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SKIP_WITH_LVMLOCKD=1
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. lib/inittest
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RUNDIR="/run"
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test -d "$RUNDIR" || RUNDIR="/var/run"
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HINTS="$RUNDIR/lvm/hints"
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NOHINTS="$RUNDIR/lvm/nohints"
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NEWHINTS="$RUNDIR/lvm/newhints"
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PREV="$RUNDIR/lvm/prev-hints"
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# TODO:
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# Test commands that ignore hints
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# Test flock
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aux lvmconf 'devices/scan_lvs = 0'
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aux prepare_devs 6
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# no PVs yet so hints should have no devs
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pvs
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not grep scan: $HINTS
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#
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# test --nohints option
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#
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pvcreate "$dev1"
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pvcreate "$dev2"
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# pvs --nohints does not create hints
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pvs --nohints |tee out
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grep "$dev1" out
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grep "$dev2" out
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not grep "$dev1" $HINTS
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not grep "$dev2" $HINTS
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# pvs creates hints
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pvs
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grep "$dev1" $HINTS
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grep "$dev2" $HINTS
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# save hints with dev1 and dev2 before dev3 is created
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cp $HINTS $PREV
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# pvcreate --nohints invalidates hints
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pvcreate --nohints "$dev3"
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ls $NEWHINTS
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# pvs --nohints does not update hints
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pvs --nohints |tee out
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grep "$dev1" out
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grep "$dev2" out
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grep "$dev3" out
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not grep "$dev3" $HINTS
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# restore old hint file without dev3
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cp $PREV $HINTS
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# pvs --nohints does not update hints
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pvs --nohints |tee out
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grep "$dev1" out
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grep "$dev2" out
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grep "$dev3" out
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grep "$dev1" $HINTS
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grep "$dev2" $HINTS
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not grep "$dev3" $HINTS
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# pvs updates hints
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pvs |tee out
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grep "$dev1" out
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grep "$dev2" out
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grep "$dev3" out
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grep "$dev1" $HINTS
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grep "$dev2" $HINTS
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grep "$dev3" $HINTS
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aux wipefs_a "$dev1"
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aux wipefs_a "$dev2"
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aux wipefs_a "$dev3"
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#
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# vg1 uses dev1,dev2
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#
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# Test basics that PVs are in hints, not non-PV devs,
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# and that only PVs are scanned when using hints.
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#
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rm $HINTS
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vgcreate $vg1 "$dev1" "$dev2"
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lvcreate -n $lv1 -l 4 $vg1
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# test that only the two PVs are in hints
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pvs
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grep -v -E "$dev1|$dev2" $HINTS > tmptest
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not grep scan: tmptest
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# test that 'pvs' submits only three reads, one for each PV in hints
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# for initial scan, and one more in vg_read rescan check
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if which strace; then
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strace -e io_submit pvs 2>&1|tee tmptest
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test "$(grep -c io_submit tmptest)" -eq 3
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# test that 'pvs -a' submits seven reads, one for each device,
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# and one more in vg_read rescan check
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strace -e io_submit pvs -a 2>&1|tee tmptest
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test "$(grep -c io_submit tmptest)" -eq 7
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fi
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#
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# vg2 uses dev3,dev4
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#
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# Test common commands that cause hints to be refreshed:
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# pvcreate/vgcreate/vgextend/vgreduce/vgremove/pvremove
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#
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not pvs "$dev3"
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not grep "$dev3" $HINTS
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cp $HINTS $PREV
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pvcreate "$dev3"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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pvs "$dev3"
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grep "$dev3" $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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not vgs $vg2
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cp $HINTS $PREV
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vgcreate $vg2 "$dev3"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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vgs $vg2
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grep $vg2 $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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cp $HINTS $PREV
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vgextend $vg2 "$dev4"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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vgs $vg2
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grep "$dev4" $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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cp $HINTS $PREV
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vgreduce $vg2 "$dev4"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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vgs $vg2
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grep "$dev4" $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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cp $HINTS $PREV
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vgremove $vg2
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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not vgs $vg2
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not grep $vg2 $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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cp $HINTS $PREV
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pvremove "$dev3" "$dev4"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# next cmd recreates hints
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not pvs "$dev3"
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not pvs "$dev4"
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not grep "$dev3" $HINTS
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not grep "$dev4" $HINTS
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not diff $HINTS $PREV
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not cat $NEWHINTS
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#
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# Test that adding a new device and removing a device
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# causes hints to be recreated.
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#
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# with a devices file the appearance of a new device on
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# the system does not disturb lvm, so this test doesn't
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# apply
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#
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if ! lvmdevices; then
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not pvs "$dev5"
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# create a new temp device that will cause hint hash to change
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DEVNAME=${PREFIX}pv99
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echo "0 $(blockdev --getsize "$dev5") linear $dev5 0" | dmsetup create $DEVNAME
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dmsetup status $DEVNAME
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cp $HINTS $PREV
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# pvs ignores current hints because of different dev hash and refreshes new hints
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pvs
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# devs listed in hints before and after are the same
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grep scan: $PREV > scan1
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grep scan: $HINTS > scan2
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diff scan1 scan2
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# hash listed before and after are different
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cat $PREV
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cat $HINTS
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grep devs_hash $PREV > devs_hash1
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grep devs_hash $HINTS > devs_hash2
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not diff devs_hash1 devs_hash2
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# hints are stable/unchanging
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cp $HINTS $PREV
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pvs
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diff $HINTS $PREV
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# remove the temp device which will cause hint hash to change again
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dmsetup remove $DEVNAME
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cp $HINTS $PREV
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# pvs ignores current hints because of different dev hash and refreshes new hints
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pvs
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# devs listed in hints before and after are the same
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grep scan: $PREV > scan1
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grep scan: $HINTS > scan2
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diff scan1 scan2
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# hash listed before and after are different
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grep devs_hash $PREV > devs_hash1
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grep devs_hash $HINTS > devs_hash2
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not diff devs_hash1 devs_hash2
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# end of new device test for non-devicesfile case
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fi
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#
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# Test that hints don't change from a bunch of commands
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# that use hints and shouldn't change it.
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#
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# first create some more metadata using vg2
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pvcreate "$dev3" "$dev4"
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vgcreate $vg2 "$dev3"
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lvcreate -n $lv1 -l1 $vg2
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lvcreate -n $lv2 -l1 $vg2
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cp $HINTS $PREV
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lvm fullreport
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lvchange -ay $vg1
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lvchange -an $vg1
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lvcreate -l1 -n $lv2 $vg1
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lvcreate -l1 -an -n $lv3 $vg1
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lvchange -an $vg1
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lvremove $vg1/$lv3
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lvresize --fs ignore -l+1 $vg1/$lv2
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lvresize --fs ignore -l-1 $vg1/$lv2
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lvdisplay
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pvdisplay
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vgdisplay
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lvs
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pvs
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vgs
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vgchange -ay $vg2
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vgchange -an $vg2
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vgck $vg2
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lvrename $vg1 $lv2 $lv3
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# no change in hints after all that
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diff $HINTS $PREV
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#
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# Test that changing the filter will cause hint refresh
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#
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rm $HINTS $PREV
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vgs
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cp $HINTS $PREV
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# this changes the filter to exclude dev5 which is not a PV
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aux hide_dev "$dev5"
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# next cmd sees different filter, ignores hints, creates new hints
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pvs
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not diff $HINTS $PREV
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# run cmds using new filter
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pvs
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cp $HINTS $PREV
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vgs
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# hints are stable once refreshed
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diff $HINTS $PREV
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# this changes the filter to include dev5
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aux unhide_dev "$dev5"
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# next cmd sees different filter, ignores hints, creates new hints
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pvs
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not diff $HINTS $PREV
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# hints are stable
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cp $HINTS $PREV
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vgs
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diff $HINTS $PREV
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#
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# Test that changing scan_lvs will cause hint refresh
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#
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rm $HINTS $PREV
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vgs
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cp $HINTS $PREV
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# change lvm.conf
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aux lvmconf 'devices/scan_lvs = 1'
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# next cmd sees new setting, ignores hints, creates new hints
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pvs
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not diff $HINTS $PREV
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# run cmds using new filter
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pvs
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cp $HINTS $PREV
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vgs
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# hints are stable once refreshed
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diff $HINTS $PREV
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# change lvm.conf back
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aux lvmconf 'devices/scan_lvs = 0'
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# next cmd sees different scan_lvs, ignores hints, creates new hints
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pvs
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not diff $HINTS $PREV
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# hints are stable once refreshed
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cp $HINTS $PREV
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pvs
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diff $HINTS $PREV
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#
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# Test pvscan --cache to force hints refresh
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#
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# pvs (no change), pvscan (hints are new), pvs (no change)
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rm $HINTS $PREV
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pvs
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cp $HINTS $PREV
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# this next pvscan recreates the hints file
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pvscan --cache
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# the only diff will be "Created by pvscan ..." vs "Created by pvs ..."
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not diff $HINTS $PREV
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cp $HINTS $PREV
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pvs
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diff $HINTS $PREV
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grep 'Created by pvscan' $HINTS
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# dev4 is a PV not used by a VG, dev5 is not a PV
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# using dd to copy skirts hint tracking so dev5 won't be seen
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# (unless the dd triggers udev which triggers pvscan --cache $dev5,
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# but I've not seen that happen in tests so far.)
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dd if="$dev4" of="$dev5" bs=1M
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# this pvs won't see dev5
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pvs > foo
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cat foo
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grep "$dev4" foo
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not grep "$dev5" foo
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# no hints have changed after dd and pvs since dd cannot be detected
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diff $HINTS $PREV
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# force hints refresh, will see duplicate now
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pvscan --cache
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not diff $HINTS $PREV
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cat $HINTS
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pvs -a > foo
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# after force refresh, both devs (dups) appear in output
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cat foo
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grep "$dev4" foo
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grep "$dev5" foo
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# clear PV from dev5
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dd if=/dev/zero of="$dev5" bs=1M count=1
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# this pvs won't use hints because of duplicate PVs,
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# and will create new hints
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cp $HINTS $PREV
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pvs > foo
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not diff $HINTS $PREV
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grep "$dev4" foo
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not grep "$dev5" foo
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grep "$dev4" $HINTS
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not grep "$dev5" $HINTS
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#
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# Test pvscan --cache <dev> forces refresh
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#
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rm $HINTS $PREV
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pvs
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cp $HINTS $PREV
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# this next pvscan creates newhints to trigger a refresh
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pvscan --cache "$dev4"
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cat $NEWHINTS
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# this next pvs creates new hints
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pvs
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# the only diff will be "Created by..."
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not diff $HINTS $PREV
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#
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# Test pvck --repair forces refresh
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#
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rm $HINTS $PREV
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pvs
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cp $HINTS $PREV
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pvck --repairtype label_header -y "$dev3"
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cat $NEWHINTS
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grep 'Created empty by pvck' $HINTS
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# this next pvs creates new hints
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pvs
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# the only diff will be "Created by..."
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not diff $HINTS $PREV
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#
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# Test incorrect dev-to-pvid info in hints is detected
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# dev4 is a PV not in a VG
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#
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pvs
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cp $HINTS tmp-old
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# this pvchange will invalidate current hints
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pvchange -u "$dev4"
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grep "# Created empty" $HINTS
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cat $NEWHINTS
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# this next pvs will create new hints with the new uuid
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pvs
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grep "$dev4" $HINTS > tmp-newuuid
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cp $HINTS tmp-new
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not diff tmp-old tmp-new
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# hints are stable
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pvs
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diff $HINTS tmp-new
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# replace the current hints with the old hints with the old uuid
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cp tmp-old $HINTS
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# this next pvs will see wrong dev-to-pvid mapping and invalidate hints
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pvs
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cat $HINTS
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cat $NEWHINTS
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# this next pvs will create new hints with the new uuid
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pvs
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cat $HINTS
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grep -f tmp-newuuid $HINTS
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rm tmp-old tmp-new tmp-newuuid
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#
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# Test incorrent pvid-to-vgname info in hints is detected
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#
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# this vgcreate invalidates current hints
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vgcreate $vg3 "$dev4"
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# this pvs creates new hints
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pvs
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cp $HINTS tmp-old
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# this vgrename will invalidate current hints
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vgrename $vg3 $vg4
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# this pvs will create new hints with the new vg name
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pvs
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cp $HINTS tmp-new
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not diff tmp-old tmp-new
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# replace the current hints with the old hints with the old vg name
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cp tmp-old $HINTS
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# this pvs will see wrong pvid-to-vgname mapping and invalidate hints
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pvs
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cat $NEWHINTS
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# this pvs will create new hints with the new vg name
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pvs
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grep $vg4 $HINTS
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vgremove -y $vg4
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vgremove -y $vg2
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vgremove -y $vg1
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