iotests/081: Test rewrite-corrupted without WRITE
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>
This commit is contained in:
Max Reitz
Kevin Wolf
parent
55f2c014d7
commit
c61c644f59
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@ -42,6 +42,7 @@ _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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@ -155,6 +156,59 @@ 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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@ -47,6 +47,33 @@ read 10485760/10485760 bytes at offset 0
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read 10485760/10485760 bytes at offset 0
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10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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== using quorum rewrite corrupted mode without WRITE permission ==
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-- corrupting --
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wrote 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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-- running quorum --
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Testing: -blockdev file,node-name=file1,filename=TEST_DIR/1.IMGFMT -blockdev file,node-name=file2,filename=TEST_DIR/2.IMGFMT -blockdev file,node-name=file3,filename=TEST_DIR/3.IMGFMT -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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} -device virtio-scsi,id=scsi -device scsi-hd,id=quorum-drive,bus=scsi.0,drive=quorum
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QMP_VERSION
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{"return": {}}
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{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "QUORUM_REPORT_BAD", "data": {"node-name": "file2", "sectors-count": 20480, "sector-num": 0, "type": "read"}}
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read 10485760/10485760 bytes at offset 0
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10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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{"return": ""}
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{"return": {}}
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{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
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-- checking that the image has been corrected --
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read 10485760/10485760 bytes at offset 0
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10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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== breaking quorum ==
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wrote 10485760/10485760 bytes at offset 0
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10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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