5 # This file and its contents are supplied under the terms of the
6 # Common Development and Distribution License ("CDDL"), version 1.0.
7 # You may only use this file in accordance with the terms of version
10 # A full copy of the text of the CDDL should have accompanied this
11 # source. A copy of the CDDL is also available via the Internet at
12 # http://www.illumos.org/license/CDDL.
18 # Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
22 # Ensure that the MMP thread is notified when MULTIHOST_INTERVAL is
23 # reduced, and that changes to MULTIHOST_INTERVAL and
24 # MULTIHOST_FAIL_INTERVALS do not trigger pool suspensions.
27 # 1. Set MULTIHOST_INTERVAL to much longer than the test duration
28 # 2. Create a zpool and enable multihost
29 # 3. Verify no MMP writes occurred
30 # 4. Set MULTIHOST_INTERVAL to 1 second
32 # 6. Verify MMP writes began
33 # 7. Verify mmp_fail and mmp_write in uberblock reflect tunables
34 # 8. Repeatedly change tunables relating to pool suspension
37 . $STF_SUITE/include/libtest.shlib
38 . $STF_SUITE/tests/functional/mmp/mmp.cfg
39 . $STF_SUITE/tests/functional/mmp/mmp.kshlib
41 verify_runnable "both"
45 default_cleanup_noexit
46 log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT
47 log_must set_tunable64 MULTIHOST_FAIL_INTERVALS \
48 $MMP_FAIL_INTERVALS_DEFAULT
49 log_must mmp_clear_hostid
52 log_assert "mmp threads notified when MULTIHOST_INTERVAL reduced"
55 log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_HOUR
56 log_must mmp_set_hostid $HOSTID1
58 default_setup_noexit $DISK
59 log_must zpool set multihost=on $TESTPOOL
62 log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT
63 uber_count=$(count_mmp_writes $TESTPOOL 1)
65 if [ $uber_count -eq 0 ]; then
66 log_fail "ERROR: mmp writes did not start when MULTIHOST_INTERVAL reduced"
69 # 7. Verify mmp_write and mmp_fail are written
70 for fails in $(seq $MMP_FAIL_INTERVALS_MIN $((MMP_FAIL_INTERVALS_MIN*2))); do
71 for interval in $(seq $MMP_INTERVAL_MIN 200 $MMP_INTERVAL_DEFAULT); do
72 log_must set_tunable64 MULTIHOST_FAIL_INTERVALS $fails
73 log_must set_tunable64 MULTIHOST_INTERVAL $interval
74 log_must sync_pool $TESTPOOL
75 typeset mmp_fail=$(zdb $TESTPOOL 2>/dev/null |
76 awk '/mmp_fail/ {print $NF}')
77 if [ $fails -ne $mmp_fail ]; then
78 log_fail "ERROR: mmp_fail $mmp_fail != $fails"
80 typeset mmp_write=$(zdb $TESTPOOL 2>/dev/null |
81 awk '/mmp_write/ {print $NF}')
82 if [ $interval -ne $mmp_write ]; then
83 log_fail "ERROR: mmp_write $mmp_write != $interval"
89 # 8. Repeatedly change MULTIHOST_INTERVAL and fail_intervals
90 for x in $(seq 10); do
91 typeset new_interval=$(( (RANDOM % 20 + 1) * $MMP_INTERVAL_MIN ))
92 log_must set_tunable64 MULTIHOST_INTERVAL $new_interval
93 typeset action=$((RANDOM %10))
94 if [ $action -eq 0 ]; then
95 log_must zpool export -a
96 log_must mmp_clear_hostid
97 log_must mmp_set_hostid $HOSTID1
98 log_must zpool import $TESTPOOL
99 elif [ $action -eq 1 ]; then
100 log_must zpool export -F $TESTPOOL
101 log_must zpool import $TESTPOOL
102 elif [ $action -eq 2 ]; then
103 log_must zpool export -F $TESTPOOL
104 log_must mmp_clear_hostid
105 log_must mmp_set_hostid $HOSTID2
106 log_must zpool import -f $TESTPOOL
107 elif [ $action -eq 3 ]; then
108 log_must zpool export -F $TESTPOOL
109 log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_MIN
110 log_must zpool import $TESTPOOL
111 elif [ $action -eq 4 ]; then
112 log_must set_tunable64 MULTIHOST_FAIL_INTERVALS \
113 $((RANDOM % MMP_FAIL_INTERVALS_DEFAULT))
119 log_pass "mmp threads notified when MULTIHOST_INTERVAL reduced"