Commit 330ca111 authored by Kevin Wolf's avatar Kevin Wolf
Browse files

iotests: Test migration with -blockdev 



Check that block node activation and inactivation works with a block
graph that is built with individually created nodes.

Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
Reviewed-by: default avatarMax Reitz <mreitz@redhat.com>
parent 9e37271f

tests/qemu-iotests/234

0 → 100755
+121 −0
Original line number Diff line number Diff line 
#!/usr/bin/env python

#

# Copyright (C) 2018 Red Hat, Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#

# Creator/Owner: Kevin Wolf <kwolf@redhat.com>

#

# Check that block node activation and inactivation works with a block graph

# that is built with individually created nodes



import iotests

import os



iotests.verify_image_format(supported_fmts=['qcow2'])

iotests.verify_platform(['linux'])



with iotests.FilePath('img') as img_path, \

     iotests.FilePath('backing') as backing_path, \

     iotests.FilePath('mig_fifo_a') as fifo_a, \

     iotests.FilePath('mig_fifo_b') as fifo_b, \

     iotests.VM(path_suffix='a') as vm_a, \

     iotests.VM(path_suffix='b') as vm_b:



    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, backing_path, '64M')

    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, img_path, '64M')



    os.mkfifo(fifo_a)

    os.mkfifo(fifo_b)



    iotests.log('Launching source VM...')

    (vm_a.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))

         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))

         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))

         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))

         .launch())



    iotests.log('Launching destination VM...')

    (vm_b.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))

         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))

         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))

         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))

         .add_incoming("exec: cat '%s'" % (fifo_a))

         .launch())



    # Add a child node that was created after the parent node. The reverse case

    # is covered by the -blockdev options above.

    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',

                         overlay='drive0'))

    iotests.log(vm_b.qmp('blockdev-snapshot', node='drive0-backing',

                         overlay='drive0'))



    iotests.log('Enabling migration QMP events on A...')

    iotests.log(vm_a.qmp('migrate-set-capabilities', capabilities=[

        {

            'capability': 'events',

            'state': True

        }

    ]))



    iotests.log('Starting migration to B...')

    iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo_a)))

    with iotests.Timeout(3, 'Migration does not complete'):

        while True:

            event = vm_a.event_wait('MIGRATION')

            iotests.log(event, filters=[iotests.filter_qmp_event])

            if event['data']['status'] == 'completed':

                break



    iotests.log(vm_a.qmp('query-migrate')['return']['status'])

    iotests.log(vm_b.qmp('query-migrate')['return']['status'])



    iotests.log(vm_a.qmp('query-status'))

    iotests.log(vm_b.qmp('query-status'))



    iotests.log('Add a second parent to drive0-file...')

    iotests.log(vm_b.qmp('blockdev-add', driver='raw', file='drive0-file',

                         node_name='drive0-raw'))



    iotests.log('Restart A with -incoming and second parent...')

    vm_a.shutdown()

    (vm_a.add_blockdev('raw,file=drive0-file,node-name=drive0-raw')

         .add_incoming("exec: cat '%s'" % (fifo_b))

         .launch())



    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',

                         overlay='drive0'))



    iotests.log('Enabling migration QMP events on B...')

    iotests.log(vm_b.qmp('migrate-set-capabilities', capabilities=[

        {

            'capability': 'events',

            'state': True

        }

    ]))



    iotests.log('Starting migration back to A...')

    iotests.log(vm_b.qmp('migrate', uri='exec:cat >%s' % (fifo_b)))

    with iotests.Timeout(3, 'Migration does not complete'):

        while True:

            event = vm_b.event_wait('MIGRATION')

            iotests.log(event, filters=[iotests.filter_qmp_event])

            if event['data']['status'] == 'completed':

                break



    iotests.log(vm_a.qmp('query-migrate')['return']['status'])

    iotests.log(vm_b.qmp('query-migrate')['return']['status'])



    iotests.log(vm_a.qmp('query-status'))

    iotests.log(vm_b.qmp('query-status'))

tests/qemu-iotests/234.out

0 → 100644
+30 −0
Original line number Diff line number Diff line 
Launching source VM...

Launching destination VM...

{"return": {}}

{"return": {}}

Enabling migration QMP events on A...

{"return": {}}

Starting migration to B...

{"return": {}}

{"data": {"status": "setup"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

{"data": {"status": "active"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

{"data": {"status": "completed"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

completed

completed

{"return": {"running": false, "singlestep": false, "status": "postmigrate"}}

{"return": {"running": true, "singlestep": false, "status": "running"}}

Add a second parent to drive0-file...

{"return": {}}

Restart A with -incoming and second parent...

{"return": {}}

Enabling migration QMP events on B...

{"return": {}}

Starting migration back to A...

{"return": {}}

{"data": {"status": "setup"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

{"data": {"status": "active"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

{"data": {"status": "completed"}, "event": "MIGRATION", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}

completed

completed

{"return": {"running": true, "singlestep": false, "status": "running"}}

{"return": {"running": false, "singlestep": false, "status": "postmigrate"}}

tests/qemu-iotests/group

+1 −0
Original line number Diff line number Diff line
@@ -231,3 +231,4 @@ 
231 auto quick

232 auto quick

233 auto quick

234 auto quick migration