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Re: [Qemu-devel] [PATCH for-3.1 v2 2/2] iotests: Test migration with -bl
From: |
Max Reitz |
Subject: |
Re: [Qemu-devel] [PATCH for-3.1 v2 2/2] iotests: Test migration with -blockdev |
Date: |
Mon, 26 Nov 2018 15:37:43 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 |
On 26.11.18 15:16, Kevin Wolf wrote:
> Check that block node activation and inactivation works with a block
> graph that is built with individually created nodes.
>
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
> tests/qemu-iotests/234 | 115 +++++++++++++++++++++++++++++++++++++
> tests/qemu-iotests/234.out | 27 +++++++++
> tests/qemu-iotests/group | 1 +
> 3 files changed, 143 insertions(+)
> create mode 100755 tests/qemu-iotests/234
> create mode 100644 tests/qemu-iotests/234.out
>
> diff --git a/tests/qemu-iotests/234 b/tests/qemu-iotests/234
> new file mode 100755
> index 0000000000..58886b8dea
> --- /dev/null
> +++ b/tests/qemu-iotests/234
> @@ -0,0 +1,115 @@
> +#!/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 <address@hidden>
> +#
> +# 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=['raw', '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.
> + vm_a.qmp('blockdev-snapshot', node='drive0-backing', overlay='drive0')
Sorry if I made it sound like my diff was ready for inclusion as-is. O:-)
I think this should be vm_a.qmp_log() at least (and the reference output
needs to be adjusted accordingly).
Also, we probably have to execute the same command on vm_b...
> + 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())
...and here on vm_a again?
Max
> + 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'))
> diff --git a/tests/qemu-iotests/234.out b/tests/qemu-iotests/234.out
> new file mode 100644
> index 0000000000..115537cd5c
> --- /dev/null
> +++ b/tests/qemu-iotests/234.out
> @@ -0,0 +1,27 @@
> +Launching source VM...
> +Launching destination VM...
> +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...
> +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"}}
> diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
> index ddf1a5b549..8c56a0ad11 100644
> --- a/tests/qemu-iotests/group
> +++ b/tests/qemu-iotests/group
> @@ -231,3 +231,4 @@
> 231 auto quick
> 232 auto quick
> 233 auto quick
> +234 auto quick migration
>
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