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#!/usr/bin/env bash
# Copyright (C) 2017 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 if dmeventd produces multiple warnings when pools runs above 80%
SKIP_WITH_LVMPOLLD=1
. lib/inittest
which blkdiscard || skip
percent_() {
get lv_field $vg/pool data_percent | cut -d. -f1
}
wait_warn_() {
for i in $(seq 1 7)
do
test "$(grep -E -c "WARNING: Thin pool.*is now" debug.log_DMEVENTD_out)" -eq "$1" && return 0
sleep 2
done
die "Waiting too log for dmeventd log warning"
}
#
# Main
#
aux have_thin 1 0 0 || skip
aux prepare_dmeventd
aux prepare_vg
lvcreate -L8 -V8 -T $vg/pool -n $lv1
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=256K count=26 oflag=direct
test "$(percent_)" -gt 80
# Give it some time to dmeventd to log WARNING
wait_warn_ 1
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=256K count=30 oflag=direct
test "$(percent_)" -gt 90
# Give it some time to dmeventd to log WARNING
wait_warn_ 2
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=8 oflag=direct
test "$(percent_)" -eq 100
wait_warn_ 3
blkdiscard "$DM_DEV_DIR/$vg/$lv1"
# FIXME: Enforce thin-pool metadata commit with flushing status
dmsetup status ${vg}-pool-tpool
# Wait for thin-pool monitoring to notice lower values
sleep 11
# ATM dmeventd is not logging event for thin-pool getting
# below 'WARNED' threshold.
dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=256K count=30 oflag=direct
test "$(percent_)" -gt 90
lvs -a $vg
dmsetup status ${vg}-pool-tpool
# Check pool again Warns
wait_warn_ 4
vgremove -f $vg
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