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# Copyright 2019 Joyent, Inc. 20# 21 22# DESCRIPTION: 23# Ensure that MMP updates uberblocks with MMP info at expected intervals. 24# 25# STRATEGY: 26# 1. Set zfs_txg_timeout to large value 27# 2. Create a zpool 28# 3. Clear multihost history 29# 4. Sleep, then collect count of uberblocks written 30# 5. If number of changes seen is less than min threshold, then fail 31# 6. If number of changes seen is more than max threshold, then fail 32# 7. Sequence number increments when no TXGs are syncing 33# 34 35. $STF_SUITE/include/libtest.shlib 36. $STF_SUITE/tests/functional/mmp/mmp.cfg 37. $STF_SUITE/tests/functional/mmp/mmp.kshlib 38 39verify_runnable "both" 40 41UBER_CHANGES=0 42EXPECTED=$(($(echo $DISKS | wc -w) * 10)) 43FUDGE=$((EXPECTED * 20 / 100)) 44MIN_UB_WRITES=$((EXPECTED - FUDGE)) 45MAX_UB_WRITES=$((EXPECTED + FUDGE)) 46MIN_SEQ_VALUES=7 47 48function cleanup 49{ 50 default_cleanup_noexit 51 log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_DEFAULT 52 set_tunable32 zfs_txg_timeout $TXG_TIMEOUT_DEFAULT 53 log_must mmp_clear_hostid 54} 55 56log_assert "Ensure MMP uberblocks update at the correct interval" 57log_onexit cleanup 58 59log_must set_tunable32 zfs_txg_timeout $TXG_TIMEOUT_LONG 60log_must mmp_set_hostid $HOSTID1 61 62default_setup_noexit "$DISKS" 63log_must zpool set multihost=on $TESTPOOL 64clear_mmp_history 65UBER_CHANGES=$(count_mmp_writes $TESTPOOL 10) 66 67log_note "Uberblock changed $UBER_CHANGES times" 68 69if [ $UBER_CHANGES -lt $MIN_UB_WRITES ]; then 70 log_fail "Fewer uberblock writes occured than expected ($EXPECTED)" 71fi 72 73if [ $UBER_CHANGES -gt $MAX_UB_WRITES ]; then 74 log_fail "More uberblock writes occured than expected ($EXPECTED)" 75fi 76 77log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_MIN 78SEQ_BEFORE=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') 79sleep 1 80SEQ_AFTER=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') 81if [ $((SEQ_AFTER - SEQ_BEFORE)) -lt $MIN_SEQ_VALUES ]; then 82 zdb -luuuu ${DISK[0]} 83 log_fail "ERROR: mmp_seq did not increase by $MIN_SEQ_VALUES; before $SEQ_BEFORE after $SEQ_AFTER" 84fi 85 86log_pass "Ensure MMP uberblocks update at the correct interval passed" 87