Signed-off-by: Max Reitz <mre...@redhat.com> --- tests/qemu-iotests/151 | 111 +++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/151.out | 5 ++ tests/qemu-iotests/group | 1 + 3 files changed, 117 insertions(+) create mode 100755 tests/qemu-iotests/151 create mode 100644 tests/qemu-iotests/151.out
diff --git a/tests/qemu-iotests/151 b/tests/qemu-iotests/151 new file mode 100755 index 0000000000..49a60773f9 --- /dev/null +++ b/tests/qemu-iotests/151 @@ -0,0 +1,111 @@ +#!/usr/bin/env python +# +# Tests for active mirroring +# +# 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/>. +# + +import os +import iotests +from iotests import qemu_img + +source_img = os.path.join(iotests.test_dir, 'source.' + iotests.imgfmt) +target_img = os.path.join(iotests.test_dir, 'target.' + iotests.imgfmt) + +class TestActiveMirror(iotests.QMPTestCase): + image_len = 128 * 1024 * 1024 # MB + potential_writes_in_flight = True + + def setUp(self): + qemu_img('create', '-f', iotests.imgfmt, source_img, '128M') + qemu_img('create', '-f', iotests.imgfmt, target_img, '128M') + + blk_source = {'node-name': 'source', + 'driver': iotests.imgfmt, + 'file': {'driver': 'file', + 'filename': source_img}} + + blk_target = {'node-name': 'target', + 'driver': iotests.imgfmt, + 'file': {'driver': 'file', + 'filename': target_img}} + + self.vm = iotests.VM() + self.vm.add_blockdev(self.qmp_to_opts(blk_source)) + self.vm.add_blockdev(self.qmp_to_opts(blk_target)) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + + if not self.potential_writes_in_flight: + self.assertTrue(iotests.compare_images(source_img, target_img), + 'mirror target does not match source') + + os.remove(source_img) + os.remove(target_img) + + def doActiveIO(self, sync_source_and_target): + # Fill the source image + self.vm.hmp_qemu_io('source', + 'write -P 1 0 %i' % self.image_len); + + # Start some background requests + for offset in range(0, self.image_len, 1024 * 1024): + self.vm.hmp_qemu_io('source', 'write -B -P 2 %i 1M' % offset) + + # Start the block job + result = self.vm.qmp('blockdev-mirror', + job_id='mirror', + filter_node_name='mirror-node', + device='source', + target='target', + sync='full', + copy_mode='active-write') + self.assert_qmp(result, 'return', {}) + + # Start some more requests + for offset in range(0, self.image_len, 1024 * 1024): + self.vm.hmp_qemu_io('mirror-node', 'write -B -P 3 %i 1M' % offset) + + # Wait for the READY event + self.wait_ready(drive='mirror') + + # Now start some final requests; all of these (which land on + # the source) should be settled using the active mechanism. + # The mirror code itself asserts that the source BDS's dirty + # bitmap will stay clean between READY and COMPLETED. + for offset in range(0, self.image_len, 1024 * 1024): + self.vm.hmp_qemu_io('mirror-node', 'write -B -P 4 %i 1M' % offset) + + if sync_source_and_target: + # If source and target should be in sync after the mirror, + # we have to flush before completion + self.vm.hmp_qemu_io('mirror-node', 'flush') + self.potential_writes_in_flight = False + + self.complete_and_wait(drive='mirror', wait_ready=False) + + def testActiveIO(self): + self.doActiveIO(False) + + def testActiveIOFlushed(self): + self.doActiveIO(True) + + + +if __name__ == '__main__': + iotests.main(supported_fmts=['qcow2', 'raw']) diff --git a/tests/qemu-iotests/151.out b/tests/qemu-iotests/151.out new file mode 100644 index 0000000000..fbc63e62f8 --- /dev/null +++ b/tests/qemu-iotests/151.out @@ -0,0 +1,5 @@ +.. +---------------------------------------------------------------------- +Ran 2 tests + +OK diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 94e764865a..c64adbe5bf 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -156,6 +156,7 @@ 148 rw auto quick 149 rw auto sudo 150 rw auto quick +151 rw auto 152 rw auto quick 153 rw auto quick 154 rw auto backing quick -- 2.13.5