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lvm2/test/t-mirror-vgreduce-removemissing.sh

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#!/bin/sh
# Copyright (C) 2007 Red Hat, Inc. All rights reserved.
# Copyright (C) 2007 NEC Corporation
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
test_description="ensure that 'vgreduce --removemissing' works on mirrored LV"
privileges_required_=1
. ./test-lib.sh
dmsetup_has_dm_devdir_support_ ||
{
say "Your version of dmsetup lacks support for changing DM_DEVDIR."
say "Skipping this test"
exit 0
}
cleanup_()
{
test -n "$vg" && {
lvremove -ff $vg
vgremove $vg
} > /dev/null
test -n "$pvs" && {
pvremove $pvs > /dev/null
for d in $pvs; do
dmsetup remove $(basename $d)
done
}
losetup -d $lodev
rm -f $lofile
}
# ---------------------------------------------------------------------
# config
nr_pvs=5
pvsize=$((80 * 1024 * 2))
vg=mirror-vgreduce-removemissing-vg-$$
lv1=lv1
lv2=lv2
lv3=lv3
# ---------------------------------------------------------------------
# Utilities
pv_()
{
echo "$G_dev_/mapper/pv$1"
}
fail_pv_()
{
local map
local p
for p in $*; do
map=$(basename $p)
echo "Fail $map"
[ -e map_$map ] && return
dmsetup table "$map" > "map_$map"
echo "0 $pvsize error" | dmsetup load "$map"
dmsetup resume "$map"
done
}
recover_pv_()
{
local map
local p
for p in $*; do
map=$(basename $p)
echo "Recover $map"
[ ! -e "map_$map" ] && return
cat "map_$map" | dmsetup load "$map"
dmsetup resume "$map"
rm "map_$map"
done
}
lv_is_on_ ()
{
local lv=$vg/$1
shift
local pvs=$*
echo "Check if $lv is exactly on PVs $pvs"
rm -f out1 out2
echo $pvs | sed 's/ /\n/g' | sort | uniq > out1
lvs -a -odevices --noheadings $lv | \
sed 's/([^)]*)//g; s/[ ,]/\n/g' | sort | uniq > out2
diff --ignore-blank-lines out1 out2
}
mimages_are_on_ ()
{
local lv=$1
shift
local pvs=$*
local mimages
local i
echo "Check if mirror images of $lv are on PVs $pvs"
rm -f out1 out2
echo $pvs | sed 's/ /\n/g' | sort | uniq > out1
mimages=$(lvs --noheadings -a -o lv_name $vg | grep "${lv}_mimage_" | \
sed 's/\[//g; s/\]//g')
for i in $mimages; do
echo "Checking $vg/$i"
lvs -a -odevices --noheadings $vg/$i | \
sed 's/([^)]*)//g; s/ //g; s/,/ /g' | sort | uniq >> out2
done
diff --ignore-blank-lines out1 out2
}
mirrorlog_is_on_()
{
local lv="$1"_mlog
shift
lv_is_on_ $lv $*
}
lv_is_linear_()
{
echo "Check if $1 is linear LV (i.e. not a mirror)"
lvs -o stripes,attr --noheadings $vg/$1 | sed 's/ //g' | grep -q '^1-'
}
rest_pvs_()
{
local index=$1
local num=$2
local rem=""
local n
for n in $(seq 1 $(($index - 1))) $(seq $((index + 1)) $num); do
rem="$rem $(pv_ $n)"
done
echo "$rem"
}
# ---------------------------------------------------------------------
# Initialize PVs and VGs
test_expect_success \
'set up temp file and loopback device' \
'lofile=$(pwd)/lofile && lodev=$(loop_setup_ "$lofile")'
offset=1
pvs=
for n in $(seq 1 $nr_pvs); do
test_expect_success \
"create pv$n" \
'echo "0 $pvsize linear $lodev $offset" > in &&
dmsetup create pv$n < in'
offset=$(($offset + $pvsize))
done
for n in $(seq 1 $nr_pvs); do
pvs="$pvs $(pv_ $n)"
done
test_expect_success \
"Run this: pvcreate $pvs" \
'pvcreate $pvs'
test_expect_success \
'set up a VG' \
'vgcreate $vg $pvs'
# ---------------------------------------------------------------------
# Common environment setup/cleanup for each sub testcases
prepare_lvs_()
{
lvremove -ff $vg;
:
}
check_and_cleanup_lvs_()
{
lvs -a -o+devices $vg &&
lvremove -ff $vg
}
recover_vg_()
{
recover_pv_ $* &&
pvcreate -ff $* &&
vgextend $vg $* &&
check_and_cleanup_lvs_
}
test_expect_success "check environment setup/cleanup" \
'prepare_lvs_ &&
check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
# one of mirror images has failed
test_expect_success "basic: fail the 2nd mirror image of 2-way mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mirrorlog_is_on_ $lv1 $(pv_ 3) &&
fail_pv_ $(pv_ 2) &&
vgreduce --removemissing $vg &&
lv_is_linear_ $lv1 &&
lv_is_on_ $lv1 $(pv_ 1)'
test_expect_success "cleanup" \
'recover_vg_ $(pv_ 2)'
# ---------------------------------------------------------------------
# LV has 3 images in flat,
# 1 out of 3 images fails
# test_3way_mirror_fail_1_ <PV# to fail>
test_3way_mirror_fail_1_()
{
local index=$1
lvcreate -l2 -m2 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
mirrorlog_is_on_ $lv1 $(pv_ 4) &&
fail_pv_ $(pv_ $index) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
mimages_are_on_ $lv1 $(rest_pvs_ $index 3) &&
mirrorlog_is_on_ $lv1 $(pv_ 4)
}
for n in $(seq 1 3); do
test_expect_success "fail mirror image $(($n - 1)) of 3-way mirrored LV" \
"prepare_lvs_ &&
test_3way_mirror_fail_1_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(pv_ $n)"
done
# ---------------------------------------------------------------------
# LV has 3 images in flat,
# 2 out of 3 images fail
# test_3way_mirror_fail_2_ <PV# NOT to fail>
test_3way_mirror_fail_2_()
{
local index=$1
lvcreate -l2 -m2 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
mirrorlog_is_on_ $lv1 $(pv_ 4) &&
fail_pv_ $(rest_pvs_ $index 3) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
lv_is_linear_ $lv1 &&
lv_is_on_ $lv1 $(pv_ $index)
}
for n in $(seq 1 3); do
test_expect_success "fail mirror images other than mirror image $(($n - 1)) of 3-way mirrored LV" \
"prepare_lvs_ &&
test_3way_mirror_fail_2_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(rest_pvs_ $n 3)"
done
# ---------------------------------------------------------------------
# LV has 4 images, 1 of them is in the temporary mirror for syncing.
# 1 out of 4 images fails
# test_3way_mirror_plus_1_fail_1_ <PV# to fail>
test_3way_mirror_plus_1_fail_1_()
{
local index=$1
lvcreate -l2 -m2 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+1 $vg/$lv1 $(pv_ 4) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ $index) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
mimages_are_on_ $lv1 $(rest_pvs_ $index 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5)
}
for n in $(seq 1 4); do
test_expect_success "fail mirror image $(($n - 1)) of 4-way (1 converting) mirrored LV" \
"prepare_lvs_ &&
test_3way_mirror_plus_1_fail_1_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(pv_ $n)"
done
# ---------------------------------------------------------------------
# LV has 4 images, 1 of them is in the temporary mirror for syncing.
# 3 out of 4 images fail
# test_3way_mirror_plus_1_fail_3_ <PV# NOT to fail>
test_3way_mirror_plus_1_fail_3_()
{
local index=$1
lvcreate -l2 -m2 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+1 $vg/$lv1 $(pv_ 4) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(rest_pvs_ $index 4) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
(mimages_are_on_ $lv1 $(pv_ $index) || lv_is_on_ $lv1 $(pv_ $index)) &&
! mirrorlog_is_on_ $lv1 $(pv_ 5)
}
for n in $(seq 1 4); do
test_expect_success "fail mirror images other than mirror image $(($n - 1)) of 4-way (1 converting) mirrored LV" \
"prepare_lvs_ &&
test_3way_mirror_plus_1_fail_3_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(rest_pvs_ $n 4)"
done
# ---------------------------------------------------------------------
# LV has 4 images, 2 of them are in the temporary mirror for syncing.
# 1 out of 4 images fail
# test_2way_mirror_plus_2_fail_1_ <PV# to fail>
test_2way_mirror_plus_2_fail_1_()
{
local index=$1
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+2 $vg/$lv1 $(pv_ 3) $(pv_ 4) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ $index) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
mimages_are_on_ $lv1 $(rest_pvs_ $index 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5)
}
for n in $(seq 1 4); do
test_expect_success "fail mirror image $(($n - 1)) of 4-way (2 converting) mirrored LV" \
"prepare_lvs_ &&
test_2way_mirror_plus_2_fail_1_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(pv_ $n)"
done
# ---------------------------------------------------------------------
# LV has 4 images, 2 of them are in the temporary mirror for syncing.
# 3 out of 4 images fail
# test_2way_mirror_plus_2_fail_3_ <PV# NOT to fail>
test_2way_mirror_plus_2_fail_3_()
{
local index=$1
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+2 $vg/$lv1 $(pv_ 3) $(pv_ 4) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(rest_pvs_ $index 4) &&
vgreduce --removemissing $vg &&
lvs -a -o+devices $vg &&
(mimages_are_on_ $lv1 $(pv_ $index) || lv_is_on_ $lv1 $(pv_ $index)) &&
! mirrorlog_is_on_ $lv1 $(pv_ 5)
}
for n in $(seq 1 4); do
test_expect_success "fail mirror images other than mirror image $(($n - 1)) of 4-way (2 converting) mirrored LV" \
"prepare_lvs_ &&
test_2way_mirror_plus_2_fail_3_ $n"
test_expect_success "cleanup" \
"recover_vg_ $(rest_pvs_ $n 4)"
done
# ---------------------------------------------------------------------
# log device is gone (flat mirror and stacked mirror)
test_expect_success "fail mirror log of 2-way mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ 5) &&
vgreduce --removemissing $vg &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
! mirrorlog_is_on_ $lv1 $(pv_ 5)'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 5)"
test_expect_success "fail mirror log of 3-way (1 converting) mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+1 $vg/$lv1 $(pv_ 3) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ 5) &&
vgreduce --removemissing $vg &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
! mirrorlog_is_on_ $lv1 $(pv_ 5)'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 5)"
# ---------------------------------------------------------------------
# all images are gone (flat mirror and stacked mirror)
test_expect_success "fail all mirror images of 2-way mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ 1) $(pv_ 2) &&
vgreduce --removemissing $vg &&
! lvs $vg/$lv1'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 1) $(pv_ 2)"
test_expect_success "fail all mirror images of 3-way (1 converting) mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+1 $vg/$lv1 $(pv_ 3) &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
fail_pv_ $(pv_ 1) $(pv_ 2) $(pv_ 3) &&
vgreduce --removemissing $vg &&
! lvs $vg/$lv1'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 1) $(pv_ 2) $(pv_ 3)"
# ---------------------------------------------------------------------
# Multiple LVs
test_expect_success "fail a mirror image of one of mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvcreate -l2 -m1 -n $lv2 $vg $(pv_ 3) $(pv_ 4) $(pv_ 5):1-1 &&
lvchange -an $vg/$lv2 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mimages_are_on_ $lv2 $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
mirrorlog_is_on_ $lv2 $(pv_ 5) &&
fail_pv_ $(pv_ 2) &&
vgreduce --removemissing $vg &&
mimages_are_on_ $lv2 $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv2 $(pv_ 5) &&
lv_is_linear_ $lv1 &&
lv_is_on_ $lv1 $(pv_ 1)'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 2)"
test_expect_success "fail mirror images, one for each mirrored LV" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
lvcreate -l2 -m1 -n $lv2 $vg $(pv_ 3) $(pv_ 4) $(pv_ 5):1-1 &&
lvchange -an $vg/$lv2 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mimages_are_on_ $lv2 $(pv_ 3) $(pv_ 4) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
mirrorlog_is_on_ $lv2 $(pv_ 5) &&
fail_pv_ $(pv_ 2) &&
fail_pv_ $(pv_ 4) &&
vgreduce --removemissing $vg &&
lv_is_linear_ $lv1 &&
lv_is_on_ $lv1 $(pv_ 1) &&
lv_is_linear_ $lv2 &&
lv_is_on_ $lv2 $(pv_ 3)'
test_expect_success "cleanup" \
"recover_vg_ $(pv_ 2) $(pv_ 4)"
# ---------------------------------------------------------------------
# no failure
test_expect_success "no failures" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5):0-1 &&
lvchange -an $vg/$lv1 &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mirrorlog_is_on_ $lv1 $(pv_ 5) &&
vgreduce --removemissing $vg &&
mimages_are_on_ $lv1 $(pv_ 1) $(pv_ 2) &&
mirrorlog_is_on_ $lv1 $(pv_ 5)'
test_expect_success "cleanup" \
'check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
test_done