ceph/qa/workunits/rbd/import_export.sh

   1 #!/bin/sh -ex
   2
   3 # returns data pool for a given image
   4 get_image_data_pool () {
   5     image=$1
   6     data_pool=$(rbd info $image | grep "data_pool: " | awk -F':' '{ print $NF }')
   7     if [ -z $data_pool ]; then
   8        data_pool='rbd'
   9     fi
  10
  11     echo $data_pool
  12 }
  13
  14 # return list of object numbers populated in image
  15 objects () {
  16    image=$1
  17    prefix=$(rbd info $image | grep block_name_prefix | awk '{print $NF;}')
  18
  19    # strip off prefix and leading zeros from objects; sort, although
  20    # it doesn't necessarily make sense as they're hex, at least it makes
  21    # the list repeatable and comparable
  22    objects=$(rados ls -p $(get_image_data_pool $image) | grep $prefix | \
  23        sed -e 's/'$prefix'\.//' -e 's/^0*\([0-9a-f]\)/\1/' | sort -u)
  24    echo $objects
  25 }
  26
  27 # return false if either files don't compare or their ondisk
  28 # sizes don't compare
  29
  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
  37 }
  38
  39 TMPDIR=/tmp/rbd_import_export_$$
  40 rm -rf $TMPDIR
  41 mkdir $TMPDIR
  42 trap "rm -rf $TMPDIR" INT TERM EXIT
  43
  44 # cannot import a dir
  45 mkdir foo.$$
  46 rbd import foo.$$ foo.dir && exit 1 || true   # should fail
  47 rmdir foo.$$
  48
  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
  56
  57 rbd rm testimg || true
  58
  59 rbd import $RBD_CREATE_ARGS ${TMPDIR}/img testimg
  60 rbd export testimg ${TMPDIR}/img2
  61 rbd export testimg - > ${TMPDIR}/img3
  62 rbd rm testimg
  63 cmp ${TMPDIR}/img ${TMPDIR}/img2
  64 cmp ${TMPDIR}/img ${TMPDIR}/img3
  65 rm ${TMPDIR}/img2 ${TMPDIR}/img3
  66
  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
  71 rbd rm testimg
  72 cmp ${TMPDIR}/img ${TMPDIR}/img2
  73 cmp ${TMPDIR}/img ${TMPDIR}/img3
  74
  75 rm ${TMPDIR}/img ${TMPDIR}/img2 ${TMPDIR}/img3
  76
  77 # try with --export-format for snapshots
  78 dd if=/bin/dd of=${TMPDIR}/img bs=1k count=10 seek=100
  79 rbd import $RBD_CREATE_ARGS ${TMPDIR}/img testimg
  80 rbd snap create testimg@snap
  81 rbd export --export-format 2 testimg ${TMPDIR}/img_v2
  82 rbd import --export-format 2 ${TMPDIR}/img_v2 testimg_import
  83 rbd info testimg_import
  84 rbd info testimg_import@snap
  85
  86 # compare the contents between testimg and testimg_import
  87 rbd export testimg_import ${TMPDIR}/img_import
  88 compare_files_and_ondisk_sizes ${TMPDIR}/img ${TMPDIR}/img_import
  89
  90 rbd export testimg@snap ${TMPDIR}/img_snap
  91 rbd export testimg_import@snap ${TMPDIR}/img_snap_import
  92 compare_files_and_ondisk_sizes ${TMPDIR}/img_snap ${TMPDIR}/img_snap_import
  93
  94 rm ${TMPDIR}/img_v2
  95 rm ${TMPDIR}/img_import
  96 rm ${TMPDIR}/img_snap
  97 rm ${TMPDIR}/img_snap_import
  98
  99 rbd snap rm testimg_import@snap
 100 rbd remove testimg_import
 101 rbd snap rm testimg@snap
 102 rbd rm testimg
 103
 104 # order
 105 rbd import --order 20 ${TMPDIR}/img testimg
 106 rbd export --export-format 2 testimg ${TMPDIR}/img_v2
 107 rbd import --export-format 2 ${TMPDIR}/img_v2 testimg_import
 108 rbd info testimg_import|grep order|awk '{print $2}'|grep 20
 109
 110 rm ${TMPDIR}/img_v2
 111
 112 rbd remove testimg_import
 113 rbd remove testimg
 114
 115 # features
 116 rbd import --image-feature layering ${TMPDIR}/img testimg
 117 FEATURES_BEFORE=`rbd info testimg|grep features`
 118 rbd export --export-format 2 testimg ${TMPDIR}/img_v2
 119 rbd import --export-format 2 ${TMPDIR}/img_v2 testimg_import
 120 FEATURES_AFTER=`rbd info testimg_import|grep features`
 121 if [ "$FEATURES_BEFORE" != "$FEATURES_AFTER" ]; then
 122   false
 123 fi
 124
 125 rm ${TMPDIR}/img_v2
 126
 127 rbd remove testimg_import
 128 rbd remove testimg
 129
 130 # stripe
 131 rbd import --stripe-count 1000 --stripe-unit 4096 ${TMPDIR}/img testimg
 132 rbd export --export-format 2 testimg ${TMPDIR}/img_v2
 133 rbd import --export-format 2 ${TMPDIR}/img_v2 testimg_import
 134 rbd info testimg_import|grep "stripe unit"|awk '{print $3}'|grep 4096
 135 rbd info testimg_import|grep "stripe count"|awk '{print $3}'|grep 1000
 136
 137 rm ${TMPDIR}/img_v2
 138
 139 rbd remove testimg_import
 140 rbd remove testimg
 141
 142 tiered=0
 143 if ceph osd dump | grep ^pool | grep "'rbd'" | grep tier; then
 144     tiered=1
 145 fi
 146
 147 # create specifically sparse files
 148 # 1 1M block of sparse, 1 1M block of random
 149 dd if=/dev/urandom bs=1M seek=1 count=1 of=${TMPDIR}/sparse1
 150
 151 # 1 1M block of random, 1 1M block of sparse
 152 dd if=/dev/urandom bs=1M count=1 of=${TMPDIR}/sparse2; truncate ${TMPDIR}/sparse2 -s 2M
 153
 154 # 1M-block images; validate resulting blocks
 155
 156 # 1M sparse, 1M data
 157 rbd rm sparse1 || true
 158 rbd import $RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1
 159 rbd ls -l | grep sparse1 | grep -i '2048k'
 160 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
 161
 162 # export, compare contents and on-disk size
 163 rbd export sparse1 ${TMPDIR}/sparse1.out
 164 compare_files_and_ondisk_sizes ${TMPDIR}/sparse1 ${TMPDIR}/sparse1.out
 165 rm ${TMPDIR}/sparse1.out
 166 rbd rm sparse1
 167
 168 # 1M data, 1M sparse
 169 rbd rm sparse2 || true
 170 rbd import $RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse2
 171 rbd ls -l | grep sparse2 | grep -i '2048k'
 172 [ $tiered -eq 1 -o "$(objects sparse2)" = '0' ]
 173 rbd export sparse2 ${TMPDIR}/sparse2.out
 174 compare_files_and_ondisk_sizes ${TMPDIR}/sparse2 ${TMPDIR}/sparse2.out
 175 rm ${TMPDIR}/sparse2.out
 176 rbd rm sparse2
 177
 178 # extend sparse1 to 10 1M blocks, sparse at the end
 179 truncate ${TMPDIR}/sparse1 -s 10M
 180 # import from stdin just for fun, verify still sparse
 181 rbd import $RBD_CREATE_ARGS --order 20 - sparse1 < ${TMPDIR}/sparse1
 182 rbd ls -l | grep sparse1 | grep -i '10240k'
 183 [ $tiered -eq 1 -o "$(objects sparse1)" = '1' ]
 184 rbd export sparse1 ${TMPDIR}/sparse1.out
 185 compare_files_and_ondisk_sizes ${TMPDIR}/sparse1 ${TMPDIR}/sparse1.out
 186 rm ${TMPDIR}/sparse1.out
 187 rbd rm sparse1
 188
 189 # extend sparse2 to 4M total with two more nonsparse megs
 190 dd if=/dev/urandom bs=2M count=1 of=${TMPDIR}/sparse2 oflag=append conv=notrunc
 191 # again from stding
 192 rbd import $RBD_CREATE_ARGS --order 20 - sparse2 < ${TMPDIR}/sparse2
 193 rbd ls -l | grep sparse2 | grep -i '4096k'
 194 [ $tiered -eq 1 -o "$(objects sparse2)" = '0 2 3' ]
 195 rbd export sparse2 ${TMPDIR}/sparse2.out
 196 compare_files_and_ondisk_sizes ${TMPDIR}/sparse2 ${TMPDIR}/sparse2.out
 197 rm ${TMPDIR}/sparse2.out
 198 rbd rm sparse2
 199
 200 # zeros import to a sparse image.  Note: all zeros currently
 201 # doesn't work right now due to the way we handle 'empty' fiemaps;
 202 # the image ends up zero-filled.
 203
 204 echo "partially-sparse file imports to partially-sparse image"
 205 rbd import $RBD_CREATE_ARGS --order 20 ${TMPDIR}/sparse1 sparse
 206 [ $tiered -eq 1 -o "$(objects sparse)" = '1' ]
 207 rbd rm sparse
 208
 209 echo "zeros import through stdin to sparse image"
 210 # stdin
 211 dd if=/dev/zero bs=1M count=4 | rbd import $RBD_CREATE_ARGS - sparse
 212 [ $tiered -eq 1 -o "$(objects sparse)" = '' ]
 213 rbd rm sparse
 214
 215 echo "zeros export to sparse file"
 216 #  Must be tricky to make image "by hand" ; import won't create a zero image
 217 rbd create $RBD_CREATE_ARGS sparse --size 4
 218 prefix=$(rbd info sparse | grep block_name_prefix | awk '{print $NF;}')
 219 # drop in 0 object directly
 220 dd if=/dev/zero bs=4M count=1 | rados -p $(get_image_data_pool sparse) \
 221                                       put ${prefix}.000000000000 -
 222 [ $tiered -eq 1 -o "$(objects sparse)" = '0' ]
 223 # 1 object full of zeros; export should still create 0-disk-usage file
 224 rm ${TMPDIR}/sparse || true
 225 rbd export sparse ${TMPDIR}/sparse
 226 [ $(stat ${TMPDIR}/sparse --format=%b) = '0' ]
 227 rbd rm sparse
 228
 229 rm ${TMPDIR}/sparse ${TMPDIR}/sparse1 ${TMPDIR}/sparse2 ${TMPDIR}/sparse3 || true
 230
 231 echo OK