tests/qemu-iotests/091

   1 #!/usr/bin/env bash
   2 # group: rw migration quick
   3 #
   4 # Live migration test
   5 #
   6 # Performs a migration from one VM to another via monitor commands
   7 #
   8 # Copyright (C) 2014 Red Hat, Inc.
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24 # creator
  25 owner=codyprime@gmail.com
  26
  27 seq=`basename $0`
  28 echo "QA output created by $seq"
  29
  30 status=1    # failure is the default!
  31
  32 MIG_FIFO="${TEST_DIR}/migrate"
  33
  34 _cleanup()
  35 {
  36     rm -f "${MIG_FIFO}"
  37     _cleanup_qemu
  38     _cleanup_test_img
  39 }
  40 trap "_cleanup; exit \$status" 0 1 2 3 15
  41
  42 # get standard environment, filters and checks
  43 . ./common.rc
  44 . ./common.filter
  45 . ./common.qemu
  46
  47 _supported_fmt qcow2
  48 _supported_proto file fuse
  49 _supported_os Linux
  50 _supported_cache_modes writethrough none writeback
  51 _default_cache_mode none writeback
  52
  53 size=1G
  54
  55 _make_test_img $size
  56
  57 mkfifo "${MIG_FIFO}"
  58
  59 echo
  60 echo === Starting QEMU VM1 ===
  61 echo
  62
  63 qemu_comm_method="monitor"
  64 _launch_qemu -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=${AIOMODE},id=disk
  65 h1=$QEMU_HANDLE
  66
  67 echo
  68 echo === Starting QEMU VM2 ===
  69 echo
  70 _launch_qemu -drive file="${TEST_IMG}",cache=${CACHEMODE},aio=${AIOMODE},id=disk \
  71              -incoming "exec: cat '${MIG_FIFO}'"
  72 h2=$QEMU_HANDLE
  73
  74 echo
  75 echo === VM 1: Migrate from VM1 to VM2  ===
  76 echo
  77
  78 silent=yes
  79 _send_qemu_cmd $h1 'qemu-io disk "write -P 0x22 0 4M"' "(qemu)"
  80 echo "vm1: qemu-io disk write complete"
  81 _send_qemu_cmd $h1 "migrate \"exec: cat > '${MIG_FIFO}'\"" "(qemu)"
  82 echo "vm1: live migration started"
  83 qemu_cmd_repeat=20 _send_qemu_cmd $h1 "info migrate" "completed"
  84 echo "vm1: live migration completed"
  85
  86 echo
  87 echo === VM 2: Post-migration, write to disk, verify running ===
  88 echo
  89
  90 _send_qemu_cmd $h2 'qemu-io disk "write 4M 1M"' "(qemu)"
  91 echo "vm2: qemu-io disk write complete"
  92 qemu_cmd_repeat=20 _send_qemu_cmd $h2 "info status" "running"
  93 echo "vm2: qemu process running successfully"
  94
  95 echo "vm2: flush io, and quit"
  96 _send_qemu_cmd $h2 'qemu-io disk flush' "(qemu)"
  97 _send_qemu_cmd $h2 'quit' ""
  98 _send_qemu_cmd $h1 'quit' ""
  99
 100 wait=yes _cleanup_qemu >/dev/null
 101
 102 echo "Check image pattern"
 103 ${QEMU_IO} -c "read -P 0x22 0 4M" "${TEST_IMG}" | _filter_testdir | _filter_qemu_io
 104
 105 echo "Running 'qemu-img check -r all \$TEST_IMG'"
 106 _check_test_img -r all
 107
 108 echo "*** done"
 109 rm -f $seq.full
 110 status=0