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
export --export-format 2 testimg
${TMPDIR}/img_v2
83 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
84 rbd info testimg_import
85 rbd info testimg_import@snap
87 # compare the contents between testimg and testimg_import
88 rbd
export testimg_import
${TMPDIR}/img_import
89 compare_files_and_ondisk_sizes
${TMPDIR}/img
${TMPDIR}/img_import
91 rbd
export testimg@snap
${TMPDIR}/img_snap
92 rbd
export testimg_import@snap
${TMPDIR}/img_snap_import
93 compare_files_and_ondisk_sizes
${TMPDIR}/img_snap
${TMPDIR}/img_snap_import
96 rm ${TMPDIR}/img_import
98 rm ${TMPDIR}/img_snap_import
100 rbd snap
rm testimg_import@snap
101 rbd remove testimg_import
102 rbd snap
rm testimg@snap
106 rbd import
--order 20 ${TMPDIR}/img testimg
107 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
108 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
109 rbd info testimg_import|
grep order|
awk '{print $2}'|
grep 20
113 rbd remove testimg_import
117 rbd import
--image-feature layering
${TMPDIR}/img testimg
118 FEATURES_BEFORE
=`rbd info testimg|grep features`
119 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
120 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
121 FEATURES_AFTER
=`rbd info testimg_import|grep features`
122 if [ "$FEATURES_BEFORE" != "$FEATURES_AFTER" ]; then
128 rbd remove testimg_import
132 rbd import
--stripe-count 1000 --stripe-unit 4096 ${TMPDIR}/img testimg
133 rbd
export --export-format 2 testimg
${TMPDIR}/img_v2
134 rbd import
--export-format 2 ${TMPDIR}/img_v2 testimg_import
135 rbd info testimg_import|
grep "stripe unit"|
awk '{print $3}'|
grep 4096
136 rbd info testimg_import|
grep "stripe count"|
awk '{print $3}'|
grep 1000
140 rbd remove testimg_import
145 if ceph osd dump |
grep ^pool |
grep "'rbd'" |
grep tier
; then
149 # create specifically sparse files
150 # 1 1M block of sparse, 1 1M block of random
151 dd if=/dev
/urandom bs
=1M seek
=1 count
=1 of
=${TMPDIR}/sparse1
153 # 1 1M block of random, 1 1M block of sparse
154 dd if=/dev
/urandom bs
=1M count
=1 of
=${TMPDIR}/sparse2
; truncate
${TMPDIR}/sparse2
-s 2M
156 # 1M-block images; validate resulting blocks
159 rbd
rm sparse1 || true
160 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1
161 rbd
ls -l |
grep sparse1 |
grep -i '2048k'
162 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
164 # export, compare contents and on-disk size
165 rbd
export sparse1
${TMPDIR}/sparse1.out
166 compare_files_and_ondisk_sizes
${TMPDIR}/sparse1
${TMPDIR}/sparse1.out
167 rm ${TMPDIR}/sparse1.out
171 rbd
rm sparse2 || true
172 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse2
173 rbd
ls -l |
grep sparse2 |
grep -i '2048k'
174 [ $tiered -eq 1 -o "$(objects sparse2)" = '0' ]
175 rbd
export sparse2
${TMPDIR}/sparse2.out
176 compare_files_and_ondisk_sizes
${TMPDIR}/sparse2
${TMPDIR}/sparse2.out
177 rm ${TMPDIR}/sparse2.out
180 # extend sparse1 to 10 1M blocks, sparse at the end
181 truncate
${TMPDIR}/sparse1
-s 10M
182 # import from stdin just for fun, verify still sparse
183 rbd import
$RBD_CREATE_ARGS --order 20 - sparse1
< ${TMPDIR}/sparse1
184 rbd
ls -l |
grep sparse1 |
grep -i '10240k'
185 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
186 rbd
export sparse1
${TMPDIR}/sparse1.out
187 compare_files_and_ondisk_sizes
${TMPDIR}/sparse1
${TMPDIR}/sparse1.out
188 rm ${TMPDIR}/sparse1.out
191 # extend sparse2 to 4M total with two more nonsparse megs
192 dd if=/dev
/urandom bs
=2M count
=1 of
=${TMPDIR}/sparse2 oflag
=append conv
=notrunc
194 rbd import
$RBD_CREATE_ARGS --order 20 - sparse2
< ${TMPDIR}/sparse2
195 rbd
ls -l |
grep sparse2 |
grep -i '4096k'
196 [ $tiered -eq 1 -o "$(objects sparse2)" = '0 2 3' ]
197 rbd
export sparse2
${TMPDIR}/sparse2.out
198 compare_files_and_ondisk_sizes
${TMPDIR}/sparse2
${TMPDIR}/sparse2.out
199 rm ${TMPDIR}/sparse2.out
202 # zeros import to a sparse image. Note: all zeros currently
203 # doesn't work right now due to the way we handle 'empty' fiemaps;
204 # the image ends up zero-filled.
206 echo "partially-sparse file imports to partially-sparse image"
207 rbd import
$RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1 sparse
208 [ $tiered -eq 1 -o "$(objects sparse)" = '1' ]
211 echo "zeros import through stdin to sparse image"
213 dd if=/dev
/zero bs
=1M count
=4 | rbd import
$RBD_CREATE_ARGS - sparse
214 [ $tiered -eq 1 -o "$(objects sparse)" = '' ]
217 echo "zeros export to sparse file"
218 # Must be tricky to make image "by hand" ; import won't create a zero image
219 rbd create
$RBD_CREATE_ARGS sparse
--size 4
220 prefix
=$
(rbd info sparse |
grep block_name_prefix |
awk '{print $NF;}')
221 # drop in 0 object directly
222 dd if=/dev
/zero bs
=4M count
=1 | rados
-p $
(get_image_data_pool sparse
) \
223 put
${prefix}.000000000000 -
224 [ $tiered -eq 1 -o "$(objects sparse)" = '0' ]
225 # 1 object full of zeros; export should still create 0-disk-usage file
226 rm ${TMPDIR}/sparse || true
227 rbd
export sparse
${TMPDIR}/sparse
228 [ $
(stat
${TMPDIR}/sparse
--format=%b
) = '0' ]
231 rm ${TMPDIR}/sparse ${TMPDIR}/sparse1 ${TMPDIR}/sparse2 ${TMPDIR}/sparse3 || true