3 # returns data pool for a given image
4 get_image_data_pool
() {
6 data_pool
=$
(rbd info
$image |
grep "data_pool: " |
awk -F':' '{ print $NF }')
7 if [ -z $data_pool ]; then
14 # return list of object numbers populated in image
17 prefix
=$
(rbd info
$image |
grep block_name_prefix |
awk '{print $NF;}')
19 # strip off prefix and leading zeros from objects; sort, although
20 # it doesn't necessarily make sense as they're hex, at least it makes
21 # the list repeatable and comparable
22 objects
=$
(rados
ls -p $
(get_image_data_pool
$image) |
grep $prefix | \
23 sed -e 's/'$prefix'\.//' -e 's/^0*\([0-9a-f]\)/\1/' |
sort -u)
27 # return false if either files don't compare or their ondisk
30 compare_files_and_ondisk_sizes
() {
31 cmp -l $1 $2 ||
return 1
32 origsize
=$
(stat
$1 --format %b
)
33 exportsize
=$
(stat
$2 --format %b
)
34 difference
=$
(($exportsize - $origsize))
35 difference
=${difference#-} # absolute value
36 test $difference -ge 0 -a $difference -lt 4096
39 TMPDIR
=/tmp
/rbd_import_export_$$
42 trap "rm -rf $TMPDIR" INT TERM EXIT
46 rbd import foo.$$ foo.dir
&& exit 1 || true
# should fail
49 # create a sparse file
50 dd if=/bin
/sh of
=${TMPDIR}/img bs
=1k count
=1 seek
=10
51 dd if=/bin
/dd of
=${TMPDIR}/img bs
=1k count
=10 seek
=100
52 dd if=/bin
/rm of
=${TMPDIR}/img bs
=1k count
=100 seek
=1000
53 dd if=/bin
/ls of
=${TMPDIR}/img bs
=1k seek
=10000
54 dd if=/bin
/ln of
=${TMPDIR}/img bs
=1k seek
=100000
55 dd if=/bin
/grep of
=${TMPDIR}/img bs
=1k seek
=1000000
57 rbd
rm testimg || true
59 rbd import
$RBD_CREATE_ARGS ${TMPDIR}/img testimg
60 rbd
export testimg
${TMPDIR}/img2
61 rbd
export testimg
- > ${TMPDIR}/img3
63 cmp ${TMPDIR}/img
${TMPDIR}/img2
64 cmp ${TMPDIR}/img
${TMPDIR}/img3
65 rm ${TMPDIR}/img2
${TMPDIR}/img3
67 # try again, importing from stdin
68 rbd import
$RBD_CREATE_ARGS - testimg
< ${TMPDIR}/img
69 rbd
export testimg
${TMPDIR}/img2
70 rbd
export testimg
- > ${TMPDIR}/img3
72 cmp ${TMPDIR}/img
${TMPDIR}/img2
73 cmp ${TMPDIR}/img
${TMPDIR}/img3
75 rm ${TMPDIR}/img ${TMPDIR}/img2 ${TMPDIR}/img3
77 if rbd
help export |
grep -q export-format
; then
78 # try with --export-format for snapshots
79 dd if=/bin
/dd of
=${TMPDIR}/img bs
=1k count
=10 seek
=100
80 rbd import
$RBD_CREATE_ARGS ${TMPDIR}/img testimg
81 rbd snap create testimg@snap
82 rbd image-meta
set testimg key1 value1
83 IMAGEMETA_BEFORE
=`rbd image-meta list testimg`
84 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
85 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
86 rbd info testimg_import
87 rbd info testimg_import@snap
88 IMAGEMETA_AFTER
=`rbd image-meta list testimg_import`
89 [ "$IMAGEMETA_BEFORE" = "$IMAGEMETA_AFTER" ]
91 # compare the contents between testimg and testimg_import
92 rbd
export testimg_import
${TMPDIR}/img_import
93 compare_files_and_ondisk_sizes
${TMPDIR}/img
${TMPDIR}/img_import
95 rbd
export testimg@snap
${TMPDIR}/img_snap
96 rbd
export testimg_import@snap
${TMPDIR}/img_snap_import
97 compare_files_and_ondisk_sizes
${TMPDIR}/img_snap
${TMPDIR}/img_snap_import
100 rm ${TMPDIR}/img_import
101 rm ${TMPDIR}/img_snap
102 rm ${TMPDIR}/img_snap_import
104 rbd snap
rm testimg_import@snap
105 rbd remove testimg_import
106 rbd snap
rm testimg@snap
110 rbd import
--order 20 ${TMPDIR}/img testimg
111 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
112 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
113 rbd info testimg_import|
grep order|
awk '{print $2}'|
grep 20
117 rbd remove testimg_import
121 rbd import
--image-feature layering
${TMPDIR}/img testimg
122 FEATURES_BEFORE
=`rbd info testimg|grep features`
123 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
124 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
125 FEATURES_AFTER
=`rbd info testimg_import|grep features`
126 if [ "$FEATURES_BEFORE" != "$FEATURES_AFTER" ]; then
132 rbd remove testimg_import
136 rbd import
--stripe-count 1000 --stripe-unit 4096 ${TMPDIR}/img testimg
137 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
138 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
139 rbd info testimg_import|
grep "stripe unit"|
grep -Ei '(4 KiB|4K|4096)'
140 rbd info testimg_import|
grep "stripe count"|
awk '{print $3}'|
grep 1000
144 rbd remove testimg_import
149 if ceph osd dump |
grep ^pool |
grep "'rbd'" |
grep tier
; then
153 # create specifically sparse files
154 # 1 1M block of sparse, 1 1M block of random
155 dd if=/dev
/urandom bs
=1M seek
=1 count
=1 of
=${TMPDIR}/sparse1
157 # 1 1M block of random, 1 1M block of sparse
158 dd if=/dev
/urandom bs
=1M count
=1 of
=${TMPDIR}/sparse2
; truncate
${TMPDIR}/sparse2
-s 2M
160 # 1M-block images; validate resulting blocks
163 rbd
rm sparse1 || true
164 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1
165 rbd
ls -l |
grep sparse1 |
grep -Ei '(2 MiB|2M|2048k)'
166 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
168 # export, compare contents and on-disk size
169 rbd
export sparse1
${TMPDIR}/sparse1.out
170 compare_files_and_ondisk_sizes
${TMPDIR}/sparse1
${TMPDIR}/sparse1.out
171 rm ${TMPDIR}/sparse1.out
175 rbd
rm sparse2 || true
176 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse2
177 rbd
ls -l |
grep sparse2 |
grep -Ei '(2 MiB|2M|2048k)'
178 [ $tiered -eq 1 -o "$(objects sparse2)" = '0' ]
179 rbd
export sparse2
${TMPDIR}/sparse2.out
180 compare_files_and_ondisk_sizes
${TMPDIR}/sparse2
${TMPDIR}/sparse2.out
181 rm ${TMPDIR}/sparse2.out
184 # extend sparse1 to 10 1M blocks, sparse at the end
185 truncate
${TMPDIR}/sparse1
-s 10M
186 # import from stdin just for fun, verify still sparse
187 rbd import
$RBD_CREATE_ARGS --order 20 - sparse1
< ${TMPDIR}/sparse1
188 rbd
ls -l |
grep sparse1 |
grep -Ei '(10 MiB|10M|10240k)'
189 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
190 rbd
export sparse1
${TMPDIR}/sparse1.out
191 compare_files_and_ondisk_sizes
${TMPDIR}/sparse1
${TMPDIR}/sparse1.out
192 rm ${TMPDIR}/sparse1.out
195 # extend sparse2 to 4M total with two more nonsparse megs
196 dd if=/dev
/urandom bs
=2M count
=1 of
=${TMPDIR}/sparse2 oflag
=append conv
=notrunc
198 rbd import
$RBD_CREATE_ARGS --order 20 - sparse2
< ${TMPDIR}/sparse2
199 rbd
ls -l |
grep sparse2 |
grep -Ei '(4 MiB|4M|4096k)'
200 [ $tiered -eq 1 -o "$(objects sparse2)" = '0 2 3' ]
201 rbd
export sparse2
${TMPDIR}/sparse2.out
202 compare_files_and_ondisk_sizes
${TMPDIR}/sparse2
${TMPDIR}/sparse2.out
203 rm ${TMPDIR}/sparse2.out
206 # zeros import to a sparse image. Note: all zeros currently
207 # doesn't work right now due to the way we handle 'empty' fiemaps;
208 # the image ends up zero-filled.
210 echo "partially-sparse file imports to partially-sparse image"
211 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1 sparse
212 [ $tiered -eq 1 -o "$(objects sparse)" = '1' ]
215 echo "zeros import through stdin to sparse image"
217 dd if=/dev
/zero bs
=1M count
=4 | rbd import
$RBD_CREATE_ARGS - sparse
218 [ $tiered -eq 1 -o "$(objects sparse)" = '' ]
221 echo "zeros export to sparse file"
222 # Must be tricky to make image "by hand" ; import won't create a zero image
223 rbd create
$RBD_CREATE_ARGS sparse
--size 4
224 prefix
=$
(rbd info sparse |
grep block_name_prefix |
awk '{print $NF;}')
225 # drop in 0 object directly
226 dd if=/dev
/zero bs
=4M count
=1 | rados
-p $
(get_image_data_pool sparse
) \
227 put
${prefix}.000000000000 -
228 [ $tiered -eq 1 -o "$(objects sparse)" = '0' ]
229 # 1 object full of zeros; export should still create 0-disk-usage file
230 rm ${TMPDIR}/sparse || true
231 rbd
export sparse
${TMPDIR}/sparse
232 [ $
(stat
${TMPDIR}/sparse
--format=%b
) = '0' ]
235 rm ${TMPDIR}/sparse ${TMPDIR}/sparse1 ${TMPDIR}/sparse2 ${TMPDIR}/sparse3 || true