1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 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 8# 1.0 of the CDDL. 9# 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. 13# 14# CDDL HEADER END 15# 16 17# 18# Copyright (c) 2017 by Lawrence Livermore National Security, LLC. 19# 20 21# DESCRIPTION: 22# Ensure that the MMP thread is notified when zfs_multihost_interval is 23# reduced. 24# 25# STRATEGY: 26# 1. Set zfs_multihost_interval to much longer than the test duration 27# 2. Create a zpool and enable multihost 28# 3. Verify no MMP writes occurred 29# 4. Set zfs_multihost_interval to 1 second 30# 5. Sleep briefly 31# 6. Verify MMP writes began 32# 33 34. $STF_SUITE/include/libtest.shlib 35. $STF_SUITE/tests/functional/mmp/mmp.cfg 36. $STF_SUITE/tests/functional/mmp/mmp.kshlib 37 38verify_runnable "both" 39 40function cleanup 41{ 42 default_cleanup_noexit 43 log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_DEFAULT 44 log_must mmp_clear_hostid 45} 46 47log_assert "mmp threads notified when zfs_multihost_interval reduced" 48log_onexit cleanup 49 50log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_HOUR 51log_must mmp_set_hostid $HOSTID1 52 53default_setup_noexit $DISK 54log_must zpool set multihost=on $TESTPOOL 55 56clear_mmp_history 57log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_DEFAULT 58uber_count=$(count_mmp_writes $TESTPOOL 1) 59 60if [ $uber_count -eq 0 ]; then 61 log_fail "mmp writes did not start when zfs_multihost_interval reduced" 62fi 63 64log_pass "mmp threads notified when zfs_multihost_interval reduced" 65