| #! /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) 2019 by Delphix. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| |
| # |
| # DESCRIPTION: |
| # Log spacemaps are generally destroyed at export in order to |
| # not induce performance overheads at import time. As a result, |
| # the log spacemap codepaths that read the logs in import times |
| # are not tested outside of ztest and pools with DEBUG bits doing |
| # many imports/exports while running the test suite. |
| # |
| # This test uses an internal tunable and forces ZFS to keep the |
| # log spacemaps at export, and then re-imports the pool, thus |
| # providing explicit testing of those codepaths. It also uses |
| # another tunable to load all the metaslabs when the pool is |
| # re-imported so more assertions and verifications will be hit. |
| # |
| # STRATEGY: |
| # 1. Create pool. |
| # 2. Do a couple of writes to generate some data for spacemap logs. |
| # 3. Set tunable to keep logs after export. |
| # 4. Export pool and verify that there are logs with zdb. |
| # 5. Set tunable to load all metaslabs at import. |
| # 6. Import pool. |
| # 7. Reset tunables. |
| # |
| |
| verify_runnable "global" |
| |
| function cleanup |
| { |
| log_must set_tunable64 KEEP_LOG_SPACEMAPS_AT_EXPORT 0 |
| log_must set_tunable64 METASLAB_DEBUG_LOAD 0 |
| if poolexists $LOGSM_POOL; then |
| log_must zpool destroy -f $LOGSM_POOL |
| fi |
| } |
| log_onexit cleanup |
| |
| LOGSM_POOL="logsm_import" |
| TESTDISK="$(echo $DISKS | cut -d' ' -f1)" |
| |
| log_must zpool create -o cachefile=none -f $LOGSM_POOL $TESTDISK |
| log_must zfs create $LOGSM_POOL/fs |
| |
| log_must dd if=/dev/urandom of=/$LOGSM_POOL/fs/00 bs=128k count=10 |
| log_must sync |
| log_must dd if=/dev/urandom of=/$LOGSM_POOL/fs/00 bs=128k count=10 |
| log_must sync |
| |
| log_must set_tunable64 KEEP_LOG_SPACEMAPS_AT_EXPORT 1 |
| log_must zpool export $LOGSM_POOL |
| |
| LOGSM_COUNT=$(zdb -m -e $LOGSM_POOL | grep "Log Spacemap object" | wc -l) |
| if (( LOGSM_COUNT == 0 )); then |
| log_fail "Pool does not have any log spacemaps after being exported" |
| fi |
| |
| log_must set_tunable64 METASLAB_DEBUG_LOAD 1 |
| log_must zpool import $LOGSM_POOL |
| |
| log_pass "Log spacemaps imported with no errors" |