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lvm2/test/shell/lvextend-thin-data-dmeventd.sh
2017-07-10 14:23:53 +02:00

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#!/usr/bin/env bash
# Copyright (C) 2016 Red Hat, Inc. All rights reserved.
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Test autoextension of thin data volume
SKIP_WITH_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1
export LVM_TEST_THIN_REPAIR_CMD=${LVM_TEST_THIN_REPAIR_CMD-/bin/false}
. lib/inittest
# As we check for 'instant' reaction
# retry only few times
test_equal_() {
for i in $(seq 1 4) ; do
test "$(get lv_field $vg/pool data_percent)" = "$1" || return
sleep 1
done
}
aux have_thin 1 10 0 || skip
aux prepare_dmeventd
aux lvmconf "activation/thin_pool_autoextend_percent = 10" \
"activation/thin_pool_autoextend_threshold = 75"
aux prepare_pvs 3 256
vgcreate -s 256K $vg $(cat DEVICES)
lvcreate -L1M -c 64k -T $vg/pool
lvcreate -V1M $vg/pool -n $lv1
# Fill exactly 75%
dd if=/dev/zero of="$DM_DEV_DIR/mapper/$vg-$lv1" bs=786432c count=1 conv=fdatasync
# when everything calcs correctly thin-pool should be exactly 75% full now
# and the size should not have changed
pre="75.00"
test_equal_ $pre || die "Data percentage has changed!"
# Now triger allocation of 1 extra pool chunk
dd if=/dev/zero of="$DM_DEV_DIR/mapper/$vg-$lv1" bs=1c count=1 seek=786433 conv=fdatasync
lvs -a -o+chunksize $vg
dmsetup table
dmsetup status
# If the watermark works well - dmeventd should have already resized data LV
test_equal_ $pre && die "Data percentage has NOT changed!"
vgremove -f $vg