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#!/bin/ksh -p
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2017 by Delphix. All rights reserved.
#
. $STF_SUITE/tests/functional/slog/slog.kshlib
#
# DESCRIPTION:
# Concurrent sync writes with log offline/online works.
#
# STRATEGY:
# 1. Configure "zfs_commit_timeout_pct"
# 2. Create pool with a log device.
# 3. Concurrently do the following:
# 3.1. Perform 8K sync writes
# 3.2. Perform log offline/online commands
# 4. Loop to test with growing "zfs_commit_timeout_pct" values.
#
verify_runnable "global"
function cleanup
{
#
# Wait for any of the writes and/or zpool commands that were
# kicked off in the background to complete. On failure, we may
# enter this function without previously waiting for them.
#
wait
set_tunable64 COMMIT_TIMEOUT_PCT $ORIG_TIMEOUT
poolexists $TESTPOOL && zpool destroy -f $TESTPOOL
}
typeset ORIG_TIMEOUT=$(get_tunable COMMIT_TIMEOUT_PCT)
log_onexit cleanup
log_must setup
for PCT in 0 1 2 4 8 16 32 64 128 256 512 1024; do
log_must set_tunable64 COMMIT_TIMEOUT_PCT $PCT
log_must zpool create $TESTPOOL $VDEV log $SDEV
for i in {1..10}; do
log_must fio --rw write --sync 1 --directory "/$TESTPOOL" \
--bs 8K --size 8K --name slog-test
done &
for i in {1..10}; do
log_must zpool offline $TESTPOOL $SDEV
log_must verify_slog_device $TESTPOOL $SDEV 'OFFLINE'
log_must zpool online $TESTPOOL $SDEV
log_must verify_slog_device $TESTPOOL $SDEV 'ONLINE'
done &
wait
log_must zpool destroy -f $TESTPOOL
done
log_pass "Concurrent writes with slog offline/online works."
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