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1 #!/usr/bin/env bash 2 # group: rw auto migration quick 3 # 4 # Test postcopy live migration with shared storage 5 # 6 # Copyright (C) 2017 Red Hat, Inc. 7 # 8 # This program is free software; you can redistribute it and/or modify 9 # it under the terms of the GNU General Public License as published by 10 # the Free Software Foundation; either version 2 of the License, or 11 # (at your option) any later version. 12 # 13 # This program is distributed in the hope that it will be useful, 14 # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 # GNU General Public License for more details. 17 # 18 # You should have received a copy of the GNU General Public License 19 # along with this program. If not, see <http://www.gnu.org/licenses/>. 20 # 21 22 # creator 23 owner=kwolf@redhat.com 24 25 seq=`basename $0` 26 echo "QA output created by $seq" 27 28 status=1 # failure is the default! 29 30 MIG_SOCKET="${SOCK_DIR}/migrate" 31 32 _cleanup() 33 { 34 rm -f "${MIG_SOCKET}" 35 _cleanup_test_img 36 _cleanup_qemu 37 } 38 trap "_cleanup; exit \$status" 0 1 2 3 15 39 40 # get standard environment, filters and checks 41 . ./common.rc 42 . ./common.filter 43 . ./common.qemu 44 45 _supported_fmt generic 46 # Formats that do not support live migration 47 _unsupported_fmt qcow vdi vhdx vmdk vpc vvfat parallels 48 _supported_proto generic 49 _supported_os Linux 50 51 size=64M 52 _make_test_img $size 53 54 echo 55 echo === Starting VMs === 56 echo 57 58 qemu_comm_method="monitor" 59 60 if [ "$IMGOPTSSYNTAX" = "true" ]; then 61 _launch_qemu \ 62 -drive "${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,id=disk 63 else 64 _launch_qemu \ 65 -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,driver=$IMGFMT,id=disk 66 fi 67 src=$QEMU_HANDLE 68 69 if [ "$IMGOPTSSYNTAX" = "true" ]; then 70 _launch_qemu \ 71 -drive "${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,id=disk \ 72 -incoming "unix:${MIG_SOCKET}" 73 else 74 _launch_qemu \ 75 -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=$AIOMODE,driver=$IMGFMT,id=disk \ 76 -incoming "unix:${MIG_SOCKET}" 77 fi 78 dest=$QEMU_HANDLE 79 80 echo 81 echo === Write something on the source === 82 echo 83 84 silent= 85 _send_qemu_cmd $src 'qemu-io disk "write -P 0x55 0 64k"' "(qemu)" 86 _send_qemu_cmd $src "" "ops/sec" 87 _send_qemu_cmd $src 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)" 88 _send_qemu_cmd $src "" "ops/sec" 89 90 echo 91 echo === Do postcopy migration to destination === 92 echo 93 94 # Slow down migration so much that it definitely won't finish before we can 95 # switch to postcopy 96 # Enable postcopy-ram capability both on source and destination 97 silent=yes 98 _send_qemu_cmd $dest 'migrate_set_capability postcopy-ram on' "(qemu)" 99 100 qemu_error_no_exit=yes success_or_failure=yes \ 101 _send_qemu_cmd $dest '' "(qemu)" "Postcopy is not supported" 102 if [ ${QEMU_STATUS[$dest]} -lt 0 ]; then 103 _send_qemu_cmd $dest '' "(qemu)" 104 105 _send_qemu_cmd $src 'quit' "" 106 _send_qemu_cmd $dest 'quit' "" 107 wait=1 _cleanup_qemu 108 109 _notrun 'Postcopy is not supported' 110 fi 111 112 _send_qemu_cmd $src 'migrate_set_parameter max_bandwidth 4k' "(qemu)" 113 _send_qemu_cmd $src 'migrate_set_capability postcopy-ram on' "(qemu)" 114 _send_qemu_cmd $src "migrate -d unix:${MIG_SOCKET}" "(qemu)" 115 _send_qemu_cmd $src 'migrate_start_postcopy' "(qemu)" 116 117 QEMU_COMM_TIMEOUT=1 qemu_cmd_repeat=10 silent=yes \ 118 _send_qemu_cmd $src "info migrate" "completed\|failed" 119 silent=yes _send_qemu_cmd $src "" "(qemu)" 120 121 echo 122 echo === Do some I/O on the destination === 123 echo 124 125 # It is important that we use the BlockBackend of the guest device here instead 126 # of the node name, which would create a new BlockBackend and not test whether 127 # the guest has the necessary permissions to access the image now 128 silent= 129 _send_qemu_cmd $dest 'qemu-io disk "read -P 0x55 0 64k"' "(qemu)" 130 _send_qemu_cmd $dest "" "ops/sec" 131 _send_qemu_cmd $dest 'qemu-io disk "write -P 0x66 1M 64k"' "(qemu)" 132 _send_qemu_cmd $dest "" "ops/sec" 133 134 echo 135 echo === Shut down and check image === 136 echo 137 138 _send_qemu_cmd $src 'quit' "" 139 _send_qemu_cmd $dest 'quit' "" 140 wait=1 _cleanup_qemu 141 142 _check_test_img 143 144 # success, all done 145 echo "*** done" 146 rm -f $seq.full 147 status=0