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 MMP updates uberblocks with MMP info at expected intervals. 23# 24# STRATEGY: 25# 1. Set TXG_TIMEOUT to large value 26# 2. Create a zpool 27# 3. Clear multihost history 28# 4. Sleep, then collect count of uberblocks written 29# 5. If number of changes seen is less than min threshold, then fail 30# 6. If number of changes seen is more than max threshold, then fail 31# 7. Sequence number increments when no TXGs are syncing 32# 33 34. $STF_SUITE/include/libtest.shlib 35. $STF_SUITE/tests/functional/mmp/mmp.cfg 36. $STF_SUITE/tests/functional/mmp/mmp.kshlib 37 38verify_runnable "both" 39 40UBER_CHANGES=0 41EXPECTED=$(($(echo $DISKS | wc -w) * 10)) 42FUDGE=$((EXPECTED * 20 / 100)) 43MIN_UB_WRITES=$((EXPECTED - FUDGE)) 44MAX_UB_WRITES=$((EXPECTED + FUDGE)) 45MIN_SEQ_VALUES=7 46 47function cleanup 48{ 49 default_cleanup_noexit 50 log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT 51 set_tunable64 TXG_TIMEOUT $TXG_TIMEOUT_DEFAULT 52 log_must mmp_clear_hostid 53} 54 55log_assert "Ensure MMP uberblocks update at the correct interval" 56log_onexit cleanup 57 58log_must set_tunable64 TXG_TIMEOUT $TXG_TIMEOUT_LONG 59log_must mmp_set_hostid $HOSTID1 60 61default_setup_noexit "$DISKS" 62log_must zpool set multihost=on $TESTPOOL 63clear_mmp_history 64UBER_CHANGES=$(count_mmp_writes $TESTPOOL 10) 65 66log_note "Uberblock changed $UBER_CHANGES times" 67 68if [ $UBER_CHANGES -lt $MIN_UB_WRITES ]; then 69 log_fail "Fewer uberblock writes occurred than expected ($EXPECTED)" 70fi 71 72if [ $UBER_CHANGES -gt $MAX_UB_WRITES ]; then 73 log_fail "More uberblock writes occurred than expected ($EXPECTED)" 74fi 75 76log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_MIN 77SEQ_BEFORE=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') 78sleep 1 79SEQ_AFTER=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') 80if [ $((SEQ_AFTER - SEQ_BEFORE)) -lt $MIN_SEQ_VALUES ]; then 81 zdb -luuuu ${DISK[0]} 82 log_fail "ERROR: mmp_seq did not increase by $MIN_SEQ_VALUES; before $SEQ_BEFORE after $SEQ_AFTER" 83fi 84 85log_pass "Ensure MMP uberblocks update at the correct interval passed" 86