tests/qemu-iotests/181

   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