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