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e778b0485b
Just as delay zevents can flood the zevent pipe when a vdev becomes unresponsive, so do the deadman zevents. Ratelimit deadman zevents according to the same tunable as for delay zevents. Enable deadman tests on FreeBSD and add a test for deadman event ratelimiting. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Don Brady <don.brady@delphix.com> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #11786
79 lines
2.3 KiB
Bash
Executable File
79 lines
2.3 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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# Portions Copyright 2021 iXsystems, Inc.
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#
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# DESCRIPTION:
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# Verify spa deadman events are rate limited
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#
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# STRATEGY:
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# 1. Reduce the zfs_slow_io_events_per_second to 1.
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# 2. Reduce the zfs_deadman_ziotime_ms to 1ms.
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# 3. Write data to a pool and read it back.
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# 4. Verify deadman events have been produced at a reasonable rate.
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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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zinject -c all
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default_cleanup_noexit
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set_tunable64 SLOW_IO_EVENTS_PER_SECOND $OLD_SLOW_IO_EVENTS
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set_tunable64 DEADMAN_ZIOTIME_MS $ZIOTIME_DEFAULT
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}
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log_assert "Verify spa deadman events are rate limited"
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log_onexit cleanup
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OLD_SLOW_IO_EVENTS=$(get_tunable SLOW_IO_EVENTS_PER_SECOND)
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log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND 1
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log_must set_tunable64 DEADMAN_ZIOTIME_MS 1
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# Create a new pool in order to use the updated deadman settings.
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default_setup_noexit $DISK1
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log_must zpool events -c
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mntpnt=$(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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log_must zpool export $TESTPOOL
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log_must zpool import $TESTPOOL
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log_must zinject -d $DISK1 -D 5:1 $TESTPOOL
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log_must dd if=$mntpnt/file of=$TEST_BASE_DIR/devnull oflag=sync
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events=$(zpool events $TESTPOOL | grep -c ereport.fs.zfs.deadman)
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log_note "events=$events"
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if [ "$events" -lt 1 ]; then
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log_fail "Expect >= 1 deadman events, $events found"
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fi
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if [ "$events" -gt 10 ]; then
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log_fail "Expect <= 10 deadman events, $events found"
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fi
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log_pass "Verify spa deadman events are rate limited"
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