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) 2015, 2016 by Delphix. All rights reserved.
19#
20
21. $STF_SUITE/include/libtest.shlib
22. $STF_SUITE/tests/functional/removal/removal.kshlib
23
24function reset
25{
26	log_must set_tunable64 CONDENSE_INDIRECT_COMMIT_ENTRY_DELAY_MS 0
27	log_must set_tunable64 CONDENSE_INDIRECT_OBSOLETE_PCT 25
28	log_must set_tunable64 CONDENSE_MIN_MAPPING_BYTES 131072
29	default_cleanup_noexit
30}
31
32default_setup_noexit "$DISKS" "true"
33log_onexit reset
34log_must set_tunable64 CONDENSE_INDIRECT_COMMIT_ENTRY_DELAY_MS 5000
35log_must set_tunable64 CONDENSE_INDIRECT_OBSOLETE_PCT 5
36log_must set_tunable64 CONDENSE_MIN_MAPPING_BYTES 1
37
38log_must zfs set recordsize=512 $TESTPOOL/$TESTFS
39
40#
41# Create a large file so that we know some of the blocks will be on the
42# removed device, and hence eligible for remapping.
43#
44log_must dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=10
45
46#
47# Create a file in the other filesystem, which will not be remapped.
48#
49log_must dd if=/dev/urandom of=$TESTDIR1/file bs=1024k count=10
50
51#
52# Randomly rewrite some of blocks in the file so that there will be holes and
53# we will not be able to remap the entire file in a few huge chunks.
54#
55for i in {1..4096}; do
56	#
57	# We have to sync periodically so that all the writes don't end up in
58	# the same txg. If they were all in the same txg, only the last write
59	# would go through and we would not have as many allocations to
60	# fragment the file.
61	#
62	((i % 100 > 0 )) || sync_pool $TESTPOOL || log_fail "Could not sync."
63        random_write $TESTDIR/file 512 || \
64            log_fail "Could not random write."
65done
66
67REMOVEDISKPATH=/dev
68case $REMOVEDISK in
69	/*)
70		REMOVEDISKPATH=$(dirname $REMOVEDISK)
71		;;
72esac
73
74log_must zpool remove $TESTPOOL $REMOVEDISK
75log_must wait_for_removal $TESTPOOL
76log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
77
78#
79# Touch one block under each L1 indirect block, so that the other data blocks
80# will be remapped to their concrete locations.  These parameters assume
81# recordsize=512, indirect block size of 128K (1024 block pointers per
82# indirect block), and file size of less than 20*1024 blocks (10MB).
83#
84log_must stride_dd -i /dev/urandom -o $TESTDIR/file -b 512 -c 20 -s 1024
85
86sync_pool $TESTPOOL
87sleep 4
88sync_pool $TESTPOOL
89log_must zpool export $TESTPOOL
90zdb -e -p $REMOVEDISKPATH $TESTPOOL | grep 'Condensing indirect vdev' || \
91    log_fail "Did not export during a condense."
92log_must zdb -e -p $REMOVEDISKPATH -cudi $TESTPOOL
93log_must zpool import $TESTPOOL
94
95log_pass "Pool can be exported in the middle of a condense."
96