mirror of
https://github.com/ceph/ceph
synced 2024-12-20 18:33:44 +00:00
6325a4800d
Add tests for: - sparse import makes expected sparse images - sparse export makes expected sparse files - sparse import from stdin also creates sparse images - import from partially-sparse file leads to partially-sparse image - import from stdin with zeros leads to sparse - export from zeros-image to file leads to sparse file Signed-off-by: Dan Mick <dan.mick@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
135 lines
4.2 KiB
Bash
Executable File
135 lines
4.2 KiB
Bash
Executable File
#!/bin/sh -ex
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# return list of object numbers populated in image
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objects () {
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image=$1
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prefix=$(rbd info $image | grep block_name_prefix | awk '{print $NF;}')
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# strip off prefix and leading zeros from objects; sort, although
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# it doesn't necessarily make sense as they're hex, at least it makes
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# the list repeatable and comparable
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objects=$(rados ls -p rbd | grep $prefix | \
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sed -e 's/'$prefix'\.//' -e 's/^0*\([0-9a-f]\)/\1/' | sort)
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echo $objects
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}
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# return false if either files don't compare or their ondisk
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# sizes don't compare
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compare_files_and_ondisk_sizes () {
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cmp -l $1 $2 || return 1
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origsize=$(stat $1 --format %b)
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exportsize=$(stat $2 --format %b)
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[ $origsize = $exportsize ]
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}
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# create a sparse file
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dd if=/bin/sh of=/tmp/img bs=1k count=1 seek=10
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dd if=/bin/dd of=/tmp/img bs=1k count=10 seek=100
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dd if=/bin/rm of=/tmp/img bs=1k count=100 seek=1000
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dd if=/bin/ls of=/tmp/img bs=1k seek=10000
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dd if=/bin/ln of=/tmp/img bs=1k seek=100000
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dd if=/bin/grep of=/tmp/img bs=1k seek=1000000
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rbd rm testimg || true
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rbd import $RBD_CREATE_ARGS /tmp/img testimg
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rbd export testimg /tmp/img2
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rbd export testimg - > /tmp/img3
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rbd rm testimg
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cmp /tmp/img /tmp/img2
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cmp /tmp/img /tmp/img3
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rm /tmp/img2 /tmp/img3
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# try again, importing from stdin
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rbd import $RBD_CREATE_ARGS - testimg < /tmp/img
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rbd export testimg /tmp/img2
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rbd export testimg - > /tmp/img3
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rbd rm testimg
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cmp /tmp/img /tmp/img2
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cmp /tmp/img /tmp/img3
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rm /tmp/img /tmp/img2 /tmp/img3
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# create specifically sparse files
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# 1 1M block of sparse, 1 1M block of random
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dd if=/dev/urandom bs=1M seek=1 count=1 of=/tmp/sparse1
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# 1 1M block of random, 1 1M block of sparse
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dd if=/dev/urandom bs=1M count=1 of=/tmp/sparse2; truncate /tmp/sparse2 -s 2M
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# 1M-block images; validate resulting blocks
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# 1M sparse, 1M data
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rbd import $RBD_CREATE_ARGS --order 20 /tmp/sparse1
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rbd ls -l | grep sparse1 | grep '2048K'
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[ "$(objects sparse1)" = '1' ]
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# export, compare contents and on-disk size
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rbd export sparse1 /tmp/sparse1.out
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compare_files_and_ondisk_sizes /tmp/sparse1 /tmp/sparse1.out
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rm /tmp/sparse1.out
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rbd rm sparse1
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# 1M data, 1M sparse
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rbd import $RBD_CREATE_ARGS --order 20 /tmp/sparse2
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rbd ls -l | grep sparse2 | grep '2048K'
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[ "$(objects sparse2)" = '0' ]
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rbd export sparse2 /tmp/sparse2.out
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compare_files_and_ondisk_sizes /tmp/sparse2 /tmp/sparse2.out
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rm /tmp/sparse2.out
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rbd rm sparse2
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# extend sparse1 to 10 1M blocks, sparse at the end
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truncate /tmp/sparse1 -s 10M
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# import from stdin just for fun, verify still sparse
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rbd import $RBD_CREATE_ARGS --order 20 - sparse1 < /tmp/sparse1
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rbd ls -l | grep sparse1 | grep '10240K'
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[ "$(objects sparse1)" = '1' ]
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rbd export sparse1 /tmp/sparse1.out
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compare_files_and_ondisk_sizes /tmp/sparse1 /tmp/sparse1.out
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rm /tmp/sparse1.out
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rbd rm sparse1
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# extend sparse2 to 4M total with two more nonsparse megs
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dd if=/dev/urandom bs=2M count=1 of=/tmp/sparse2 oflag=append conv=notrunc
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# again from stding
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rbd import $RBD_CREATE_ARGS --order 20 - sparse2 < /tmp/sparse2
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rbd ls -l | grep sparse2 | grep '4096K'
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[ "$(objects sparse2)" = '0 2 3' ]
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rbd export sparse2 /tmp/sparse2.out
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compare_files_and_ondisk_sizes /tmp/sparse2 /tmp/sparse2.out
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rm /tmp/sparse2.out
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rbd rm sparse2
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# zeros import to a sparse image. Note: all zeros currently
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# doesn't work right now due to the way we handle 'empty' fiemaps;
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# the image ends up zero-filled.
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echo "partially-sparse file imports to partially-sparse image"
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rbd import $RBD_CREATE_ARGS --order 20 /tmp/sparse1 sparse
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[ "$(objects sparse)" = '1' ]
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rbd rm sparse
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echo "zeros import through stdin to sparse image"
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# stdin
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dd if=/dev/zero bs=1M count=4 | rbd import $RBD_CREATE_ARGS - sparse
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[ "$(objects sparse)" = '' ]
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rbd rm sparse
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echo "zeros export to sparse file"
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# Must be tricky to make image "by hand" ; import won't create a zero image
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rbd create sparse --size 4
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prefix=$(rbd info sparse | grep block_name_prefix | awk '{print $NF;}')
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# drop in 0 object directly
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dd if=/dev/zero bs=4M count=1 | rados -p rbd put ${prefix}.000000000000 -
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[ "$(objects sparse)" = '0' ]
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# 1 object full of zeros; export should still create 0-disk-usage file
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rm /tmp/sparse || true
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rbd export sparse /tmp/sparse
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[ $(stat /tmp/sparse --format=%b) = '0' ]
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rbd rm sparse
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rm /tmp/sparse /tmp/sparse1 /tmp/sparse2 /tmp/sparse3 || true
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echo OK
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