| #!/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 MMP updates uberblocks with MMP info at expected intervals. |
| # |
| # STRATEGY: |
| # 1. Set TXG_TIMEOUT to large value |
| # 2. Create a zpool |
| # 3. Clear multihost history |
| # 4. Sleep, then collect count of uberblocks written |
| # 5. If number of changes seen is less than min threshold, then fail |
| # 6. If number of changes seen is more than max threshold, then fail |
| # 7. Sequence number increments when no TXGs are syncing |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/mmp/mmp.cfg |
| . $STF_SUITE/tests/functional/mmp/mmp.kshlib |
| |
| verify_runnable "both" |
| |
| UBER_CHANGES=0 |
| EXPECTED=$(($(echo $DISKS | wc -w) * 10)) |
| FUDGE=$((EXPECTED * 20 / 100)) |
| MIN_UB_WRITES=$((EXPECTED - FUDGE)) |
| MAX_UB_WRITES=$((EXPECTED + FUDGE)) |
| MIN_SEQ_VALUES=7 |
| |
| function cleanup |
| { |
| default_cleanup_noexit |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_DEFAULT |
| set_tunable64 TXG_TIMEOUT $TXG_TIMEOUT_DEFAULT |
| log_must mmp_clear_hostid |
| } |
| |
| log_assert "Ensure MMP uberblocks update at the correct interval" |
| log_onexit cleanup |
| |
| log_must set_tunable64 TXG_TIMEOUT $TXG_TIMEOUT_LONG |
| log_must mmp_set_hostid $HOSTID1 |
| |
| default_setup_noexit "$DISKS" |
| log_must zpool set multihost=on $TESTPOOL |
| clear_mmp_history |
| UBER_CHANGES=$(count_mmp_writes $TESTPOOL 10) |
| |
| log_note "Uberblock changed $UBER_CHANGES times" |
| |
| if [ $UBER_CHANGES -lt $MIN_UB_WRITES ]; then |
| log_fail "Fewer uberblock writes occurred than expected ($EXPECTED)" |
| fi |
| |
| if [ $UBER_CHANGES -gt $MAX_UB_WRITES ]; then |
| log_fail "More uberblock writes occurred than expected ($EXPECTED)" |
| fi |
| |
| log_must set_tunable64 MULTIHOST_INTERVAL $MMP_INTERVAL_MIN |
| SEQ_BEFORE=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') |
| sleep 1 |
| SEQ_AFTER=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}') |
| if [ $((SEQ_AFTER - SEQ_BEFORE)) -lt $MIN_SEQ_VALUES ]; then |
| zdb -luuuu ${DISK[0]} |
| log_fail "ERROR: mmp_seq did not increase by $MIN_SEQ_VALUES; before $SEQ_BEFORE after $SEQ_AFTER" |
| fi |
| |
| log_pass "Ensure MMP uberblocks update at the correct interval passed" |
