c61c644f59
Test what happens when a rewrite-corrupted quorum node performs such a rewrite, while there is no parent that has taken the WRITE permission. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20201113211718.261671-4-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
343 lines
9.8 KiB
Bash
Executable File
343 lines
9.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Test Quorum block driver
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#
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# Copyright (C) 2013 Nodalink, SARL.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=benoit@irqsave.net
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seq=`basename $0`
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_rm_test_img "$TEST_DIR/1.raw"
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_rm_test_img "$TEST_DIR/2.raw"
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_rm_test_img "$TEST_DIR/3.raw"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt raw
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_supported_proto file
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_supported_os Linux
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_require_drivers quorum
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_require_devices virtio-scsi
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do_run_qemu()
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{
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echo Testing: "$@"
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$QEMU -nographic -qmp stdio -serial none "$@"
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echo
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}
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run_qemu()
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{
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do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_imgfmt | _filter_qemu \
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| _filter_qmp | _filter_qemu_io \
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| _filter_generated_node_ids
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}
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quorum="driver=raw,file.driver=quorum,file.vote-threshold=2"
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quorum="$quorum,file.children.0.file.filename=$TEST_DIR/1.raw"
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quorum="$quorum,file.children.1.file.filename=$TEST_DIR/2.raw"
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quorum="$quorum,file.children.2.file.filename=$TEST_DIR/3.raw"
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quorum="$quorum,file.children.0.driver=raw"
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quorum="$quorum,file.children.1.driver=raw"
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quorum="$quorum,file.children.2.driver=raw"
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echo
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echo "== creating quorum files =="
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size=10M
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TEST_IMG="$TEST_DIR/1.raw" _make_test_img $size
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TEST_IMG="$TEST_DIR/2.raw" _make_test_img $size
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TEST_IMG="$TEST_DIR/3.raw" _make_test_img $size
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echo
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echo "== writing images =="
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$QEMU_IO -c "open -o $quorum" -c "write -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== checking quorum write =="
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$QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
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$QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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$QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/3.raw" | _filter_qemu_io
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echo
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echo "== corrupting image =="
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$QEMU_IO -c "write -P 0x42 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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echo
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echo "== checking quorum correction =="
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$QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== checking mixed reference/option specification =="
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run_qemu <<EOF
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{ "execute": "qmp_capabilities" }
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{ "execute": "blockdev-add",
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"arguments": {
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"node-name": "drive2",
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/2.raw"
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}
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}
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}
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{ "execute": "blockdev-add",
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"arguments": {
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"driver": "quorum",
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"node-name": "drive0-quorum",
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"vote-threshold": 2,
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"children": [
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/1.raw"
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}
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},
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"drive2",
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/3.raw"
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}
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}
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]
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}
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}
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{ "execute": "human-monitor-command",
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"arguments": {
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"command-line": 'qemu-io drive0-quorum "read -P 0x32 0 $size"'
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}
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}
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{ "execute": "quit" }
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EOF
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echo
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echo "== using quorum rewrite corrupted mode =="
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quorum="$quorum,file.rewrite-corrupted=on"
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$QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== checking that quorum has corrected the corrupted file =="
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$QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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echo
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echo "== using quorum rewrite corrupted mode without WRITE permission =="
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# The same as above, but this time, do it on a quorum node whose only
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# parent will not take the WRITE permission
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echo '-- corrupting --'
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# Only corrupt a portion: The guest device (scsi-hd on virtio-scsi)
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# will read some data (looking for a partition table to guess the
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# disk's geometry), which would trigger a quorum mismatch if the
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# beginning of the image was corrupted. The subsequent
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# QUORUM_REPORT_BAD event would be suppressed (because at that point,
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# there cannot have been a qmp_capabilities on the monitor). Because
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# that event is rate-limited, the next QUORUM_REPORT_BAD that happens
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# thanks to our qemu-io read (which should trigger a mismatch) would
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# then be delayed past the VM quit and not appear in the output.
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# So we keep the first 1M intact to see a QUORUM_REPORT_BAD resulting
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# from the qemu-io invocation.
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$QEMU_IO -c "write -P 0x42 1M 1M" "$TEST_DIR/2.raw" | _filter_qemu_io
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# Fix the corruption (on a read-only quorum node, i.e. without taking
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# the WRITE permission on it -- its child nodes need to be R/W OTOH,
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# so that rewrite-corrupted works)
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echo
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echo '-- running quorum --'
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run_qemu \
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-blockdev file,node-name=file1,filename="$TEST_DIR/1.raw" \
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-blockdev file,node-name=file2,filename="$TEST_DIR/2.raw" \
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-blockdev file,node-name=file3,filename="$TEST_DIR/3.raw" \
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-blockdev '{
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"driver": "quorum",
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"node-name": "quorum",
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"read-only": true,
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"vote-threshold": 2,
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"rewrite-corrupted": true,
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"children": [ "file1", "file2", "file3" ]
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}' \
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-device virtio-scsi,id=scsi \
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-device scsi-hd,id=quorum-drive,bus=scsi.0,drive=quorum \
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<<EOF
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{ "execute": "qmp_capabilities" }
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{
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"execute": "human-monitor-command",
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"arguments": {
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"command-line": 'qemu-io -d quorum-drive "read -P 0x32 0 $size"'
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}
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}
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{ "execute": "quit" }
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EOF
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echo '-- checking that the image has been corrected --'
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$QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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echo
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echo "== breaking quorum =="
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$QEMU_IO -c "write -P 0x41 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
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$QEMU_IO -c "write -P 0x42 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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echo
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echo "== checking that quorum is broken =="
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$QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== checking the blkverify mode with broken content =="
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quorum="driver=raw,file.driver=quorum,file.vote-threshold=2,file.blkverify=on"
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quorum="$quorum,file.children.0.file.filename=$TEST_DIR/1.raw"
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quorum="$quorum,file.children.1.file.filename=$TEST_DIR/2.raw"
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quorum="$quorum,file.children.0.driver=raw"
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quorum="$quorum,file.children.1.driver=raw"
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$QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== writing the same data to both files =="
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$QEMU_IO -c "write -P 0x32 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
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$QEMU_IO -c "write -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
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echo
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echo "== checking the blkverify mode with valid content =="
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$QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
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echo
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echo "== checking the blkverify mode with invalid settings =="
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quorum="$quorum,file.children.2.file.filename=$TEST_DIR/3.raw"
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quorum="$quorum,file.children.2.driver=raw"
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$QEMU_IO -c "open -o $quorum" | _filter_qemu_io
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echo
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echo "== dynamically adding a child to a quorum =="
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for verify in false true; do
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run_qemu <<EOF
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{ "execute": "qmp_capabilities" }
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{ "execute": "blockdev-add",
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"arguments": {
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"driver": "quorum",
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"node-name": "drive0-quorum",
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"vote-threshold": 2,
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"blkverify": ${verify},
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"children": [
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/1.raw"
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}
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},
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/2.raw"
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}
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}
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]
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}
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}
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{ "execute": "blockdev-add",
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"arguments": {
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"node-name": "drive3",
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/2.raw"
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}
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}
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}
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{ "execute": "x-blockdev-change",
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"arguments": { "parent": "drive0-quorum",
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"node": "drive3" } }
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{ "execute": "quit" }
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EOF
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done
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echo
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echo "== dynamically removing a child from a quorum =="
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for verify in false true; do
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for vote_threshold in 1 2; do
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run_qemu <<EOF
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{ "execute": "qmp_capabilities" }
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{ "execute": "blockdev-add",
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"arguments": {
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"driver": "quorum",
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"node-name": "drive0-quorum",
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"vote-threshold": ${vote_threshold},
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"blkverify": ${verify},
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"children": [
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/1.raw"
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}
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},
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{
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"driver": "$IMGFMT",
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"file": {
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"driver": "file",
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"filename": "$TEST_DIR/2.raw"
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}
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}
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]
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}
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}
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{ "execute": "x-blockdev-change",
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"arguments": { "parent": "drive0-quorum",
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"child": "children.1" } }
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{ "execute": "quit" }
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EOF
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done
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done
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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