| #!/bin/ksh -p |
| # |
| # 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. |
| # |
| |
| # |
| # Copyright (c) 2018 by Delphix. All rights reserved. |
| # |
| |
| # DESCRIPTION |
| # Verify that livelists tracking remapped blocks can be |
| # properly condensed. |
| |
| # STRATEGY |
| # 1. Create a pool with disk1 and create a filesystem, snapshot |
| # and clone. Create two files for the first livelist entry and |
| # pause condensing. |
| # 2. Add disk2 to the pool and then remove disk1, triggering a |
| # remap of the blkptrs tracked in the livelist. |
| # 3. Overwrite the first file several times to trigger a condense, |
| # overwrite the second file once and resume condensing, now with |
| # extra blkptrs added during the remap |
| # 4. Check that the test added new ALLOC blkptrs mid-condense using |
| # a variable set in that code path |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/removal/removal.kshlib |
| . $STF_SUITE/tests/functional/cli_root/zfs_destroy/zfs_destroy.cfg |
| |
| function cleanup |
| { |
| poolexists $TESTPOOL2 && zpool destroy $TESTPOOL2 |
| # reset livelist max size |
| set_tunable64 LIVELIST_MAX_ENTRIES $ORIGINAL_MAX |
| [[ -f $VIRTUAL_DISK1 ]] && log_must rm $VIRTUAL_DISK1 |
| [[ -f $VIRTUAL_DISK2 ]] && log_must rm $VIRTUAL_DISK2 |
| } |
| |
| log_onexit cleanup |
| |
| ORIGINAL_MAX=$(get_tunable LIVELIST_MAX_ENTRIES) |
| set_tunable64 LIVELIST_MAX_ENTRIES 20 |
| |
| VIRTUAL_DISK1=$TEST_BASE_DIR/disk1 |
| VIRTUAL_DISK2=$TEST_BASE_DIR/disk2 |
| log_must truncate -s $(($MINVDEVSIZE * 8)) $VIRTUAL_DISK1 |
| log_must truncate -s $(($MINVDEVSIZE * 16)) $VIRTUAL_DISK2 |
| |
| log_must zpool create $TESTPOOL2 $VIRTUAL_DISK1 |
| log_must poolexists $TESTPOOL2 |
| |
| log_must zfs create $TESTPOOL2/$TESTFS |
| log_must mkfile 100m /$TESTPOOL2/$TESTFS/atestfile |
| log_must zfs snapshot $TESTPOOL2/$TESTFS@snap |
| |
| log_must zfs clone $TESTPOOL2/$TESTFS@snap $TESTPOOL2/$TESTCLONE |
| |
| # Create initial files and pause condense zthr on next execution |
| log_must mkfile 10m /$TESTPOOL2/$TESTCLONE/A |
| log_must mkfile 1m /$TESTPOOL2/$TESTCLONE/B |
| log_must zpool sync $TESTPOOL2 |
| set_tunable32 LIVELIST_CONDENSE_SYNC_PAUSE 1 |
| |
| # Add a new dev and remove the old one |
| log_must zpool add $TESTPOOL2 $VIRTUAL_DISK2 |
| log_must zpool remove $TESTPOOL2 $VIRTUAL_DISK1 |
| wait_for_removal $TESTPOOL2 |
| |
| set_tunable32 LIVELIST_CONDENSE_NEW_ALLOC 0 |
| # Trigger a condense |
| log_must mkfile 10m /$TESTPOOL2/$TESTCLONE/A |
| log_must zpool sync $TESTPOOL2 |
| log_must mkfile 10m /$TESTPOOL2/$TESTCLONE/A |
| log_must zpool sync $TESTPOOL2 |
| # Write remapped blkptrs which will modify the livelist mid-condense |
| log_must mkfile 1m /$TESTPOOL2/$TESTCLONE/B |
| |
| # Resume condense thr |
| set_tunable32 LIVELIST_CONDENSE_SYNC_PAUSE 0 |
| log_must zpool sync $TESTPOOL2 |
| # Check that we've added new ALLOC blkptrs during the condense |
| [[ "0" < "$(get_tunable LIVELIST_CONDENSE_NEW_ALLOC)" ]] || \ |
| log_fail "removal/condense test failed" |
| |
| log_must zfs destroy $TESTPOOL2/$TESTCLONE |
| log_pass "Clone with the livelist feature and remapped blocks," \ |
| "can be condensed." |