| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # 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. |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright (c) 2017 by Lawrence Livermore National Security, LLC. |
| # |
| |
| # DESCRIPTION: |
| # Ensure that the MMP thread is notified when MULTIHOST_INTERVAL is |
| # reduced, and that changes to MULTIHOST_INTERVAL and |
| # MULTIHOST_FAIL_INTERVALS do not trigger pool suspensions. |
| # |
| # STRATEGY: |
| # 1. Set MULTIHOST_INTERVAL to much longer than the test duration |
| # 2. Create a zpool and enable multihost |
| # 3. Verify no MMP writes occurred |
| # 4. Set MULTIHOST_INTERVAL to 1 second |
| # 5. Sleep briefly |
| # 6. Verify MMP writes began |
| # 7. Verify mmp_fail and mmp_write in uberblock reflect tunables |
| # 8. Repeatedly change tunables relating to pool suspension |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/mmp/mmp.cfg |
| . $STF_SUITE/tests/functional/mmp/mmp.kshlib |
| |
| verify_runnable "both" |
| |
| function cleanup |
| { |
| default_cleanup_noexit |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT |
| log_must set_tunable64 MULTIHOST_FAIL_INTERVALS \ |
| $MMP_FAIL_INTERVALS_DEFAULT |
| log_must mmp_clear_hostid |
| } |
| |
| log_assert "mmp threads notified when MULTIHOST_INTERVAL reduced" |
| log_onexit cleanup |
| |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_HOUR |
| log_must mmp_set_hostid $HOSTID1 |
| |
| default_setup_noexit $DISK |
| log_must zpool set multihost=on $TESTPOOL |
| |
| clear_mmp_history |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT |
| uber_count=$(count_mmp_writes $TESTPOOL 1) |
| |
| if [ $uber_count -eq 0 ]; then |
| log_fail "ERROR: mmp writes did not start when MULTIHOST_INTERVAL reduced" |
| fi |
| |
| # 7. Verify mmp_write and mmp_fail are written |
| for fails in $(seq $MMP_FAIL_INTERVALS_MIN $((MMP_FAIL_INTERVALS_MIN*2))); do |
| for interval in $(seq $MMP_INTERVAL_MIN 200 $MMP_INTERVAL_DEFAULT); do |
| log_must set_tunable64 MULTIHOST_FAIL_INTERVALS $fails |
| log_must set_tunable64 MULTIHOST_INTERVAL $interval |
| log_must sync_pool $TESTPOOL |
| typeset mmp_fail=$(zdb $TESTPOOL 2>/dev/null | |
| awk '/mmp_fail/ {print $NF}') |
| if [ $fails -ne $mmp_fail ]; then |
| log_fail "ERROR: mmp_fail $mmp_fail != $fails" |
| fi |
| typeset mmp_write=$(zdb $TESTPOOL 2>/dev/null | |
| awk '/mmp_write/ {print $NF}') |
| if [ $interval -ne $mmp_write ]; then |
| log_fail "ERROR: mmp_write $mmp_write != $interval" |
| fi |
| done |
| done |
| |
| |
| # 8. Repeatedly change MULTIHOST_INTERVAL and fail_intervals |
| for x in $(seq 10); do |
| typeset new_interval=$(( (RANDOM % 20 + 1) * $MMP_INTERVAL_MIN )) |
| log_must set_tunable64 MULTIHOST_INTERVAL $new_interval |
| typeset action=$((RANDOM %10)) |
| if [ $action -eq 0 ]; then |
| log_must zpool export -a |
| log_must mmp_clear_hostid |
| log_must mmp_set_hostid $HOSTID1 |
| log_must zpool import $TESTPOOL |
| elif [ $action -eq 1 ]; then |
| log_must zpool export -F $TESTPOOL |
| log_must zpool import $TESTPOOL |
| elif [ $action -eq 2 ]; then |
| log_must zpool export -F $TESTPOOL |
| log_must mmp_clear_hostid |
| log_must mmp_set_hostid $HOSTID2 |
| log_must zpool import -f $TESTPOOL |
| elif [ $action -eq 3 ]; then |
| log_must zpool export -F $TESTPOOL |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_MIN |
| log_must zpool import $TESTPOOL |
| elif [ $action -eq 4 ]; then |
| log_must set_tunable64 MULTIHOST_FAIL_INTERVALS \ |
| $((RANDOM % MMP_FAIL_INTERVALS_DEFAULT)) |
| fi |
| sleep 5 |
| done |
| |
| |
| log_pass "mmp threads notified when MULTIHOST_INTERVAL reduced" |