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b3b6491ce9
In the CI environment it's possible for events to be slightly delayed resulting in 4, instead of 5, events appearing in the log file. This isn't a problem and should be considered a success to avoid false positive test results. Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #12625
91 lines
2.7 KiB
Bash
Executable File
91 lines
2.7 KiB
Bash
Executable File
#!/bin/ksh -p
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
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# Use is subject to license terms.
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#
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# DESCRIPTION:
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# Verify spa deadman detects a hung txg
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#
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# STRATEGY:
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# 1. Reduce the zfs_deadman_synctime_ms to 5s.
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# 2. Reduce the zfs_deadman_checktime_ms to 1s.
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# 3. Inject a 10s zio delay to force long IOs.
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# 4. Write enough data to force a long txg sync time due to the delay.
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# 5. Verify a "deadman" event is posted.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/deadman/deadman.cfg
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verify_runnable "both"
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function cleanup
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{
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log_must zinject -c all
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default_cleanup_noexit
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log_must set_tunable64 DEADMAN_SYNCTIME_MS $SYNCTIME_DEFAULT
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log_must set_tunable64 DEADMAN_CHECKTIME_MS $CHECKTIME_DEFAULT
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log_must set_tunable64 DEADMAN_FAILMODE $FAILMODE_DEFAULT
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}
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log_assert "Verify spa deadman detects a hung txg"
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log_onexit cleanup
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log_must set_tunable64 DEADMAN_SYNCTIME_MS 5000
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log_must set_tunable64 DEADMAN_CHECKTIME_MS 1000
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log_must set_tunable64 DEADMAN_FAILMODE "wait"
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# Create a new pool in order to use the updated deadman settings.
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default_setup_noexit $DISK1
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log_must zpool events -c
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# Force each IO to take 10s by allow them to run concurrently.
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log_must zinject -d $DISK1 -D10000:10 $TESTPOOL
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mntpnt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
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log_must file_write -b 1048576 -c 8 -o create -d 0 -f $mntpnt/file
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sleep 10
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log_must zinject -c all
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log_must zpool sync
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# Log txg sync times for reference and the zpool event summary.
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if is_freebsd; then
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log_must sysctl -n kstat.zfs.$TESTPOOL.txgs
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else
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log_must cat /proc/spl/kstat/zfs/$TESTPOOL/txgs
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fi
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log_must zpool events
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# Verify at least 4 deadman events were logged. The first after 5 seconds,
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# and another each second thereafter until the delay is clearer.
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events=$(zpool events | grep -c ereport.fs.zfs.deadman)
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if [ "$events" -lt 4 ]; then
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log_fail "Expect >=5 deadman events, $events found"
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fi
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log_pass "Verify spa deadman detected a hung txg and $events deadman events"
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