Commit 12314f2d authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by Eric Blake
Browse files

qemu-iotests: add 194 non-shared storage migration test 



Non-shared storage migration with NBD and drive-mirror is currently not
tested by qemu-iotests.  This test case covers the basic migration
scenario.

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Based-on: <20170823134242.12080-1-famz@redhat.com>
Message-Id: <20170823140506.28723-1-stefanha@redhat.com>
Tested-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarEric Blake <eblake@redhat.com>
parent 7d5b5261

tests/qemu-iotests/194

0 → 100755
+73 −0
Original line number Diff line number Diff line 
#!/usr/bin/env python

#

# Copyright (C) 2017 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: Stefan Hajnoczi <stefanha@redhat.com>

#

# Non-shared storage migration test using NBD server and drive-mirror



import os

import atexit

import iotests



iotests.verify_platform(['linux'])



img_size = '1G'

source_img_path = os.path.join(iotests.test_dir, 'source.img')

dest_img_path = os.path.join(iotests.test_dir, 'dest.img')

iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, source_img_path, img_size)

iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, dest_img_path, img_size)



iotests.log('Launching VMs...')

migration_sock_path = os.path.join(iotests.test_dir, 'migration.sock')

nbd_sock_path = os.path.join(iotests.test_dir, 'nbd.sock')

source_vm = iotests.VM('source').add_drive(source_img_path)

dest_vm = (iotests.VM('dest').add_drive(dest_img_path)

                             .add_incoming('unix:{0}'.format(migration_sock_path)))

source_vm.launch()

atexit.register(source_vm.shutdown)

dest_vm.launch()

atexit.register(dest_vm.shutdown)



iotests.log('Launching NBD server on destination...')

iotests.log(dest_vm.qmp('nbd-server-start', addr={'type': 'unix', 'data': {'path': nbd_sock_path}}))

iotests.log(dest_vm.qmp('nbd-server-add', device='drive0', writable=True))



iotests.log('Starting drive-mirror on source...')

iotests.log(source_vm.qmp(

              'drive-mirror',

              device='drive0',

              target='nbd+unix:///drive0?socket={0}'.format(nbd_sock_path),

              sync='full',

              format='raw', # always raw, the server handles the format

              mode='existing'))



iotests.log('Waiting for drive-mirror to complete...')

iotests.log(source_vm.event_wait('BLOCK_JOB_READY'),

            filters=[iotests.filter_qmp_event])



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

source_vm.qmp('migrate-set-capabilities',

              capabilities=[{'capability': 'events', 'state': True}])

dest_vm.qmp('migrate-set-capabilities',

            capabilities=[{'capability': 'events', 'state': True}])

iotests.log(source_vm.qmp('migrate', uri='unix:{0}'.format(migration_sock_path)))



while True:

    event = source_vm.event_wait('MIGRATION')

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

    if event['data']['status'] in ('completed', 'failed'):

        break

tests/qemu-iotests/194.out

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Launching VMs...

Launching NBD server on destination...

{u'return': {}}

{u'return': {}}

Starting drive-mirror on source...

{u'return': {}}

Waiting for drive-mirror to complete...

{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'drive0', u'type': u'mirror', u'speed': 0, u'len': 1073741824, u'offset': 1073741824}, u'event': u'BLOCK_JOB_READY'}

Starting migration...

{u'return': {}}

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

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

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

tests/qemu-iotests/group

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@@ -187,3 +187,4 @@ 
189 rw auto

190 rw auto quick

192 rw auto quick

194 rw auto migration quick

tests/qemu-iotests/iotests.py

+13 −0
Original line number Diff line number Diff line
@@ -133,6 +133,14 @@ chown_re = re.compile(r"chown [0-9]+:[0-9]+") 
def filter_chown(msg):

    return chown_re.sub("chown UID:GID", msg)



def filter_qmp_event(event):

    '''Filter a QMP event dict'''

    event = dict(event)

    if 'timestamp' in event:

        event['timestamp']['seconds'] = 'SECS'

        event['timestamp']['microseconds'] = 'USECS'

    return event



def log(msg, filters=[]):

    for flt in filters:

        msg = flt(msg)
@@ -200,6 +208,11 @@ class VM(qtest.QEMUQtestMachine): 
            self._args.append(','.join(opts))

        return self



    def add_incoming(self, addr):

        self._args.append('-incoming')

        self._args.append(addr)

        return self



    def pause_drive(self, drive, event=None):

        '''Pause drive r/w operations'''

        if not event: