#!/usr/bin/env python3 # # Tests for image mirroring. # # Copyright (C) 2012 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 . # import time import os import re import iotests from iotests import qemu_img, qemu_io backing_img = os.path.join(iotests.test_dir, 'backing.img') target_backing_img = os.path.join(iotests.test_dir, 'target-backing.img') test_img = os.path.join(iotests.test_dir, 'test.img') target_img = os.path.join(iotests.test_dir, 'target.img') quorum_img1 = os.path.join(iotests.test_dir, 'quorum1.img') quorum_img2 = os.path.join(iotests.test_dir, 'quorum2.img') quorum_img3 = os.path.join(iotests.test_dir, 'quorum3.img') quorum_repair_img = os.path.join(iotests.test_dir, 'quorum_repair.img') quorum_snapshot_file = os.path.join(iotests.test_dir, 'quorum_snapshot.img') nbd_sock_path = os.path.join(iotests.test_dir, 'nbd.sock') class TestSingleDrive(iotests.QMPTestCase): image_len = 1 * 1024 * 1024 # MB qmp_cmd = 'drive-mirror' qmp_target = target_img def setUp(self): iotests.create_image(backing_img, self.image_len) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) self.vm = iotests.VM().add_drive(test_img, "node-name=top,backing.node-name=base") if iotests.qemu_default_machine == 'pc': self.vm.add_drive(None, 'media=cdrom', 'ide') self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(backing_img) try: os.remove(target_img) except OSError: pass def test_complete(self): self.assert_no_active_block_jobs() result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_cancel(self): self.assert_no_active_block_jobs() result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.cancel_and_wait(force=True) result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', test_img) def test_cancel_after_ready(self): self.assert_no_active_block_jobs() result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.wait_ready_and_cancel() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', test_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_pause(self): self.assert_no_active_block_jobs() result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.pause_job('drive0') result = self.vm.qmp('query-block-jobs') offset = self.dictpath(result, 'return[0]/offset') time.sleep(0.5) result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/offset', offset) result = self.vm.qmp('block-job-resume', device='drive0') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_small_buffer(self): self.assert_no_active_block_jobs() # A small buffer is rounded up automatically result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', buf_size=4096, target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_small_buffer2(self): self.assert_no_active_block_jobs() qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,size=%d' % (self.image_len, self.image_len), target_img) result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', buf_size=65536, mode='existing', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_large_cluster(self): self.assert_no_active_block_jobs() qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s' % (self.image_len, backing_img), target_img) result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', mode='existing', target=self.qmp_target) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') # Tests that the insertion of the mirror_top filter node doesn't make a # difference to query-block def test_implicit_node(self): self.assert_no_active_block_jobs() result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', test_img) self.assert_qmp(result, 'return[0]/inserted/drv', iotests.imgfmt) self.assert_qmp(result, 'return[0]/inserted/backing_file', backing_img) self.assert_qmp(result, 'return[0]/inserted/backing_file_depth', 1) self.assert_qmp(result, 'return[0]/inserted/image/filename', test_img) self.assert_qmp(result, 'return[0]/inserted/image/backing-image/filename', backing_img) result = self.vm.qmp('query-blockstats') self.assert_qmp(result, 'return[0]/node-name', 'top') self.assert_qmp(result, 'return[0]/backing/node-name', 'base') self.cancel_and_wait(force=True) result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', test_img) self.assert_qmp(result, 'return[0]/inserted/drv', iotests.imgfmt) self.assert_qmp(result, 'return[0]/inserted/backing_file', backing_img) self.assert_qmp(result, 'return[0]/inserted/backing_file_depth', 1) self.assert_qmp(result, 'return[0]/inserted/image/filename', test_img) self.assert_qmp(result, 'return[0]/inserted/image/backing-image/filename', backing_img) result = self.vm.qmp('query-blockstats') self.assert_qmp(result, 'return[0]/node-name', 'top') self.assert_qmp(result, 'return[0]/backing/node-name', 'base') def test_medium_not_found(self): if iotests.qemu_default_machine != 'pc': return result = self.vm.qmp(self.qmp_cmd, device='ide1-cd0', sync='full', target=self.qmp_target) self.assert_qmp(result, 'error/class', 'GenericError') def test_image_not_found(self): result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', mode='existing', target=self.qmp_target) self.assert_qmp(result, 'error/class', 'GenericError') def test_device_not_found(self): result = self.vm.qmp(self.qmp_cmd, device='nonexistent', sync='full', target=self.qmp_target) self.assert_qmp(result, 'error/class', 'GenericError') class TestSingleBlockdev(TestSingleDrive): qmp_cmd = 'blockdev-mirror' qmp_target = 'node1' def setUp(self): TestSingleDrive.setUp(self) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img) args = {'driver': iotests.imgfmt, 'node-name': self.qmp_target, 'file': { 'filename': target_img, 'driver': 'file' } } result = self.vm.qmp("blockdev-add", **args) self.assert_qmp(result, 'return', {}) def test_mirror_to_self(self): result = self.vm.qmp(self.qmp_cmd, job_id='job0', device=self.qmp_target, sync='full', target=self.qmp_target) self.assert_qmp(result, 'error/class', 'GenericError') test_large_cluster = None test_image_not_found = None test_small_buffer2 = None class TestSingleDriveZeroLength(TestSingleDrive): image_len = 0 test_small_buffer2 = None test_large_cluster = None class TestSingleBlockdevZeroLength(TestSingleBlockdev): image_len = 0 class TestSingleDriveUnalignedLength(TestSingleDrive): image_len = 1025 * 1024 test_small_buffer2 = None test_large_cluster = None class TestSingleBlockdevUnalignedLength(TestSingleBlockdev): image_len = 1025 * 1024 class TestMirrorNoBacking(iotests.QMPTestCase): image_len = 2 * 1024 * 1024 # MB def setUp(self): iotests.create_image(backing_img, TestMirrorNoBacking.image_len) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) self.vm = iotests.VM().add_drive(test_img) self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(backing_img) try: os.remove(target_backing_img) except: pass os.remove(target_img) def test_complete(self): self.assert_no_active_block_jobs() qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img) result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=target_img) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_cancel(self): self.assert_no_active_block_jobs() qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img) result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=target_img) self.assert_qmp(result, 'return', {}) self.wait_ready_and_cancel() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', test_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_large_cluster(self): self.assert_no_active_block_jobs() # qemu-img create fails if the image is not there qemu_img('create', '-f', iotests.imgfmt, '-o', 'size=%d' %(TestMirrorNoBacking.image_len), target_backing_img) qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s' % (TestMirrorNoBacking.image_len, target_backing_img), target_img) result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=target_img) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') class TestMirrorResized(iotests.QMPTestCase): backing_len = 1 * 1024 * 1024 # MB image_len = 2 * 1024 * 1024 # MB def setUp(self): iotests.create_image(backing_img, TestMirrorResized.backing_len) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) qemu_img('resize', test_img, '2M') self.vm = iotests.VM().add_drive(test_img) self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(backing_img) try: os.remove(target_img) except OSError: pass def test_complete_top(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='top', target=target_img) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_complete_full(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img) self.assert_qmp(result, 'return', {}) self.complete_and_wait() result = self.vm.qmp('query-block') self.assert_qmp(result, 'return[0]/inserted/file', target_img) self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') class TestReadErrors(iotests.QMPTestCase): image_len = 2 * 1024 * 1024 # MB # this should be a multiple of twice the default granularity # so that we hit this offset first in state 1 MIRROR_GRANULARITY = 1024 * 1024 def create_blkdebug_file(self, name, event, errno): file = open(name, 'w') file.write(''' [inject-error] state = "1" event = "%s" errno = "%d" immediately = "off" once = "on" sector = "%d" [set-state] state = "1" event = "%s" new_state = "2" [set-state] state = "2" event = "%s" new_state = "1" ''' % (event, errno, self.MIRROR_GRANULARITY // 512, event, event)) file.close() def setUp(self): self.blkdebug_file = backing_img + ".blkdebug" iotests.create_image(backing_img, TestReadErrors.image_len) self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' % (self.blkdebug_file, backing_img), test_img) # Write something for tests that use sync='top' qemu_io('-c', 'write %d 512' % (self.MIRROR_GRANULARITY + 65536), test_img) self.vm = iotests.VM().add_drive(test_img) self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(target_img) os.remove(backing_img) os.remove(self.blkdebug_file) def test_report_read(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img) self.assert_qmp(result, 'return', {}) completed = False error = False while not completed: for event in self.vm.get_qmp_events(wait=True): if event['event'] == 'BLOCK_JOB_ERROR': self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'read') error = True elif event['event'] == 'BLOCK_JOB_READY': self.assertTrue(False, 'job completed unexpectedly') elif event['event'] == 'BLOCK_JOB_COMPLETED': self.assertTrue(error, 'job completed unexpectedly') self.assert_qmp(event, 'data/type', 'mirror') self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/error', 'Input/output error') completed = True elif event['event'] == 'JOB_STATUS_CHANGE': self.assert_qmp(event, 'data/id', 'drive0') self.assert_no_active_block_jobs() def test_ignore_read(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img, on_source_error='ignore') self.assert_qmp(result, 'return', {}) event = self.vm.get_qmp_event(wait=True) while event['event'] == 'JOB_STATUS_CHANGE': self.assert_qmp(event, 'data/id', 'drive0') event = self.vm.get_qmp_event(wait=True) self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'read') result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', False) self.complete_and_wait() def test_large_cluster(self): self.assert_no_active_block_jobs() # Test COW into the target image. The first half of the # cluster at MIRROR_GRANULARITY has to be copied from # backing_img, even though sync='top'. qemu_img('create', '-f', iotests.imgfmt, '-ocluster_size=131072,backing_file=%s' %(backing_img), target_img) result = self.vm.qmp('drive-mirror', device='drive0', sync='top', on_source_error='ignore', mode='existing', target=target_img) self.assert_qmp(result, 'return', {}) event = self.vm.get_qmp_event(wait=True) while event['event'] == 'JOB_STATUS_CHANGE': self.assert_qmp(event, 'data/id', 'drive0') event = self.vm.get_qmp_event(wait=True) self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'read') result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', False) self.complete_and_wait() self.vm.shutdown() # Detach blkdebug to compare images successfully qemu_img('rebase', '-f', iotests.imgfmt, '-u', '-b', backing_img, test_img) self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_stop_read(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img, on_source_error='stop') self.assert_qmp(result, 'return', {}) error = False ready = False while not ready: for event in self.vm.get_qmp_events(wait=True): if event['event'] == 'BLOCK_JOB_ERROR': self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'read') result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', True) self.assert_qmp(result, 'return[0]/io-status', 'failed') result = self.vm.qmp('block-job-resume', device='drive0') self.assert_qmp(result, 'return', {}) error = True elif event['event'] == 'BLOCK_JOB_READY': self.assertTrue(error, 'job completed unexpectedly') self.assert_qmp(event, 'data/device', 'drive0') ready = True result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', False) self.assert_qmp(result, 'return[0]/io-status', 'ok') self.complete_and_wait(wait_ready=False) self.assert_no_active_block_jobs() class TestWriteErrors(iotests.QMPTestCase): image_len = 2 * 1024 * 1024 # MB # this should be a multiple of twice the default granularity # so that we hit this offset first in state 1 MIRROR_GRANULARITY = 1024 * 1024 def create_blkdebug_file(self, name, event, errno): file = open(name, 'w') file.write(''' [inject-error] state = "1" event = "%s" errno = "%d" immediately = "off" once = "on" sector = "%d" [set-state] state = "1" event = "%s" new_state = "2" [set-state] state = "2" event = "%s" new_state = "1" ''' % (event, errno, self.MIRROR_GRANULARITY // 512, event, event)) file.close() def setUp(self): self.blkdebug_file = target_img + ".blkdebug" iotests.create_image(backing_img, TestWriteErrors.image_len) self.create_blkdebug_file(self.blkdebug_file, "write_aio", 5) qemu_img('create', '-f', iotests.imgfmt, '-obacking_file=%s' %(backing_img), test_img) self.vm = iotests.VM().add_drive(test_img) self.target_img = 'blkdebug:%s:%s' % (self.blkdebug_file, target_img) qemu_img('create', '-f', iotests.imgfmt, '-osize=%d' %(TestWriteErrors.image_len), target_img) self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(target_img) os.remove(backing_img) os.remove(self.blkdebug_file) def test_report_write(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=self.target_img) self.assert_qmp(result, 'return', {}) completed = False error = False while not completed: for event in self.vm.get_qmp_events(wait=True): if event['event'] == 'BLOCK_JOB_ERROR': self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'write') error = True elif event['event'] == 'BLOCK_JOB_READY': self.assertTrue(False, 'job completed unexpectedly') elif event['event'] == 'BLOCK_JOB_COMPLETED': self.assertTrue(error, 'job completed unexpectedly') self.assert_qmp(event, 'data/type', 'mirror') self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/error', 'Input/output error') completed = True self.assert_no_active_block_jobs() def test_ignore_write(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=self.target_img, on_target_error='ignore') self.assert_qmp(result, 'return', {}) event = self.vm.event_wait(name='BLOCK_JOB_ERROR') self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'write') result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', False) self.complete_and_wait() def test_stop_write(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', mode='existing', target=self.target_img, on_target_error='stop') self.assert_qmp(result, 'return', {}) error = False ready = False while not ready: for event in self.vm.get_qmp_events(wait=True): if event['event'] == 'BLOCK_JOB_ERROR': self.assert_qmp(event, 'data/device', 'drive0') self.assert_qmp(event, 'data/operation', 'write') result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', True) self.assert_qmp(result, 'return[0]/io-status', 'failed') result = self.vm.qmp('block-job-resume', device='drive0') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/paused', False) self.assert_qmp(result, 'return[0]/io-status', 'ok') error = True elif event['event'] == 'BLOCK_JOB_READY': self.assertTrue(error, 'job completed unexpectedly') self.assert_qmp(event, 'data/device', 'drive0') ready = True self.complete_and_wait(wait_ready=False) self.assert_no_active_block_jobs() class TestSetSpeed(iotests.QMPTestCase): image_len = 80 * 1024 * 1024 # MB def setUp(self): qemu_img('create', backing_img, str(TestSetSpeed.image_len)) qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) self.vm = iotests.VM().add_drive(test_img) self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(backing_img) os.remove(target_img) def test_set_speed(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img) self.assert_qmp(result, 'return', {}) # Default speed is 0 result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/device', 'drive0') self.assert_qmp(result, 'return[0]/speed', 0) result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024) self.assert_qmp(result, 'return', {}) # Ensure the speed we set was accepted result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/device', 'drive0') self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024) self.wait_ready_and_cancel() # Check setting speed in drive-mirror works result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img, speed=4*1024*1024) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/device', 'drive0') self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024) self.wait_ready_and_cancel() def test_set_speed_invalid(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img, speed=-1) self.assert_qmp(result, 'error/class', 'GenericError') self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1) self.assert_qmp(result, 'error/class', 'GenericError') self.wait_ready_and_cancel() class TestUnbackedSource(iotests.QMPTestCase): image_len = 2 * 1024 * 1024 # MB def setUp(self): qemu_img('create', '-f', iotests.imgfmt, test_img, str(TestUnbackedSource.image_len)) self.vm = iotests.VM() self.vm.launch() result = self.vm.qmp('blockdev-add', node_name='drive0', driver=iotests.imgfmt, file={ 'driver': 'file', 'filename': test_img, }) self.assert_qmp(result, 'return', {}) def tearDown(self): self.vm.shutdown() os.remove(test_img) os.remove(target_img) def test_absolute_paths_full(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='drive0', device='drive0', sync='full', target=target_img, mode='absolute-paths') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.assert_no_active_block_jobs() def test_absolute_paths_top(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='drive0', device='drive0', sync='top', target=target_img, mode='absolute-paths') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.assert_no_active_block_jobs() def test_absolute_paths_none(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='drive0', device='drive0', sync='none', target=target_img, mode='absolute-paths') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.assert_no_active_block_jobs() def test_existing_full(self): qemu_img('create', '-f', iotests.imgfmt, target_img, str(self.image_len)) qemu_io('-c', 'write -P 42 0 64k', target_img) self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='drive0', device='drive0', sync='full', target=target_img, mode='existing') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-del', node_name='drive0') self.assert_qmp(result, 'return', {}) self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') def test_blockdev_full(self): qemu_img('create', '-f', iotests.imgfmt, target_img, str(self.image_len)) qemu_io('-c', 'write -P 42 0 64k', target_img) result = self.vm.qmp('blockdev-add', node_name='target', driver=iotests.imgfmt, file={ 'driver': 'file', 'filename': target_img, }) self.assert_qmp(result, 'return', {}) self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-mirror', job_id='drive0', device='drive0', sync='full', target='target') self.assert_qmp(result, 'return', {}) self.complete_and_wait() self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-del', node_name='drive0') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('blockdev-del', node_name='target') self.assert_qmp(result, 'return', {}) self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') class TestGranularity(iotests.QMPTestCase): image_len = 10 * 1024 * 1024 # MB def setUp(self): qemu_img('create', '-f', iotests.imgfmt, test_img, str(TestGranularity.image_len)) qemu_io('-c', 'write 0 %d' % (self.image_len), test_img) self.vm = iotests.VM().add_drive(test_img) self.vm.launch() def tearDown(self): self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') os.remove(test_img) os.remove(target_img) def test_granularity(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img, mode='absolute-paths', granularity=8192) self.assert_qmp(result, 'return', {}) event = self.vm.get_qmp_event(wait=60.0) while event['event'] == 'JOB_STATUS_CHANGE': self.assert_qmp(event, 'data/id', 'drive0') event = self.vm.get_qmp_event(wait=60.0) # Failures will manifest as COMPLETED/ERROR. self.assert_qmp(event, 'event', 'BLOCK_JOB_READY') self.complete_and_wait(drive='drive0', wait_ready=False) self.assert_no_active_block_jobs() class TestRepairQuorum(iotests.QMPTestCase): """ This class test quorum file repair using drive-mirror. It's mostly a fork of TestSingleDrive """ image_len = 1 * 1024 * 1024 # MB IMAGES = [ quorum_img1, quorum_img2, quorum_img3 ] @iotests.skip_if_unsupported(['quorum']) def setUp(self): self.vm = iotests.VM() if iotests.qemu_default_machine == 'pc': self.vm.add_drive(None, 'media=cdrom', 'ide') # Add each individual quorum images for i in self.IMAGES: qemu_img('create', '-f', iotests.imgfmt, i, str(self.image_len)) # Assign a node name to each quorum image in order to manipulate # them opts = "node-name=img%i" % self.IMAGES.index(i) opts += ',driver=%s' % iotests.imgfmt opts += ',file.driver=file' opts += ',file.filename=%s' % i self.vm = self.vm.add_blockdev(opts) self.vm.launch() #assemble the quorum block device from the individual files args = { "driver": "quorum", "node-name": "quorum0", "vote-threshold": 2, "children": [ "img0", "img1", "img2" ] } result = self.vm.qmp("blockdev-add", **args) self.assert_qmp(result, 'return', {}) def tearDown(self): self.vm.shutdown() for i in self.IMAGES + [ quorum_repair_img, quorum_snapshot_file, nbd_sock_path ]: # Do a try/except because the test may have deleted some images try: os.remove(i) except OSError: pass def test_complete(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name="repair0", replaces="img1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) self.complete_and_wait(drive="job0") self.assert_has_block_node("repair0", quorum_repair_img) self.vm.assert_block_path('quorum0', '/children.1', 'repair0') self.vm.shutdown() self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), 'target image does not match source after mirroring') def test_cancel(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name="repair0", replaces="img1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) self.cancel_and_wait(drive="job0", force=True) # here we check that the last registered quorum file has not been # swapped out and unref self.assert_has_block_node(None, quorum_img3) def test_cancel_after_ready(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name="repair0", replaces="img1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) self.wait_ready_and_cancel(drive="job0") # here we check that the last registered quorum file has not been # swapped out and unref self.assert_has_block_node(None, quorum_img3) self.vm.shutdown() self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), 'target image does not match source after mirroring') def test_pause(self): self.assert_no_active_block_jobs() result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name="repair0", replaces="img1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) self.pause_job('job0') result = self.vm.qmp('query-block-jobs') offset = self.dictpath(result, 'return[0]/offset') time.sleep(0.5) result = self.vm.qmp('query-block-jobs') self.assert_qmp(result, 'return[0]/offset', offset) result = self.vm.qmp('block-job-resume', device='job0') self.assert_qmp(result, 'return', {}) self.complete_and_wait(drive="job0") self.vm.shutdown() self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), 'target image does not match source after mirroring') def test_medium_not_found(self): if iotests.qemu_default_machine != 'pc': return result = self.vm.qmp('drive-mirror', job_id='job0', device='drive0', # CD-ROM sync='full', node_name='repair0', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_image_not_found(self): result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name='repair0', replaces='img1', mode='existing', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_device_not_found(self): result = self.vm.qmp('drive-mirror', job_id='job0', device='nonexistent', sync='full', node_name='repair0', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_wrong_sync_mode(self): result = self.vm.qmp('drive-mirror', device='quorum0', job_id='job0', node_name='repair0', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_no_node_name(self): result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_nonexistent_replaces(self): result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name='repair0', replaces='img77', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') def test_after_a_quorum_snapshot(self): result = self.vm.qmp('blockdev-snapshot-sync', node_name='img1', snapshot_file=quorum_snapshot_file, snapshot_node_name="snap1"); result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name='repair0', replaces="img1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/class', 'GenericError') result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', sync='full', node_name='repair0', replaces="snap1", target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) self.complete_and_wait('job0') self.assert_has_block_node("repair0", quorum_repair_img) self.vm.assert_block_path('quorum0', '/children.1', 'repair0') def test_with_other_parent(self): """ Check that we cannot replace a Quorum child when it has other parents. """ result = self.vm.qmp('nbd-server-start', addr={ 'type': 'unix', 'data': {'path': nbd_sock_path} }) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('nbd-server-add', device='img1') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('drive-mirror', job_id='mirror', device='quorum0', sync='full', node_name='repair0', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'error/desc', "Cannot replace 'img1' by a node mirrored from " "'quorum0', because it cannot be guaranteed that doing " "so would not lead to an abrupt change of visible data") def test_with_other_parents_after_mirror_start(self): """ The same as test_with_other_parent(), but add the NBD server only when the mirror job is already running. """ result = self.vm.qmp('nbd-server-start', addr={ 'type': 'unix', 'data': {'path': nbd_sock_path} }) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('drive-mirror', job_id='mirror', device='quorum0', sync='full', node_name='repair0', replaces='img1', target=quorum_repair_img, format=iotests.imgfmt) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('nbd-server-add', device='img1') self.assert_qmp(result, 'return', {}) # The full error message goes to stderr, we will check it later self.complete_and_wait('mirror', completion_error='Operation not permitted') # Should not have been replaced self.vm.assert_block_path('quorum0', '/children.1', 'img1') # Check the full error message now self.vm.shutdown() log = self.vm.get_log() log = re.sub(r'^\[I \d+\.\d+\] OPENED\n', '', log) log = re.sub(r'^Formatting.*\n', '', log) log = re.sub(r'\n\[I \+\d+\.\d+\] CLOSED\n?$', '', log) log = re.sub(r'^%s: ' % os.path.basename(iotests.qemu_prog), '', log) self.assertEqual(log, "Can no longer replace 'img1' by 'repair0', because " + "it can no longer be guaranteed that doing so would " + "not lead to an abrupt change of visible data") # Test mirroring with a source that does not have any parents (not even a # BlockBackend) class TestOrphanedSource(iotests.QMPTestCase): def setUp(self): blk0 = { 'node-name': 'src', 'driver': 'null-co' } blk1 = { 'node-name': 'dest', 'driver': 'null-co' } blk2 = { 'node-name': 'dest-ro', 'driver': 'null-co', 'read-only': 'on' } self.vm = iotests.VM() self.vm.add_blockdev(self.vm.qmp_to_opts(blk0)) self.vm.add_blockdev(self.vm.qmp_to_opts(blk1)) self.vm.add_blockdev(self.vm.qmp_to_opts(blk2)) self.vm.launch() def tearDown(self): self.vm.shutdown() def test_no_job_id(self): self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-mirror', device='src', sync='full', target='dest') self.assert_qmp(result, 'error/class', 'GenericError') def test_success(self): self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-mirror', job_id='job', device='src', sync='full', target='dest') self.assert_qmp(result, 'return', {}) self.complete_and_wait('job') def test_failing_permissions(self): self.assert_no_active_block_jobs() result = self.vm.qmp('blockdev-mirror', device='src', sync='full', target='dest-ro') self.assert_qmp(result, 'error/class', 'GenericError') def test_failing_permission_in_complete(self): self.assert_no_active_block_jobs() # Unshare consistent-read on the target # (The mirror job does not care) result = self.vm.qmp('blockdev-add', driver='blkdebug', node_name='dest-perm', image='dest', unshare_child_perms=['consistent-read']) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('blockdev-mirror', job_id='job', device='src', sync='full', target='dest', filter_node_name='mirror-filter') self.assert_qmp(result, 'return', {}) # Require consistent-read on the source # (We can only add this node once the job has started, or it # will complain that it does not want to run on non-root nodes) result = self.vm.qmp('blockdev-add', driver='blkdebug', node_name='src-perm', image='src', take_child_perms=['consistent-read']) self.assert_qmp(result, 'return', {}) # While completing, mirror will attempt to replace src by # dest, which must fail because src-perm requires # consistent-read but dest-perm does not share it; thus # aborting the job when it is supposed to complete self.complete_and_wait('job', completion_error='Operation not permitted') # Assert that all of our nodes are still there (except for the # mirror filter, which should be gone despite the failure) nodes = self.vm.qmp('query-named-block-nodes')['return'] nodes = [node['node-name'] for node in nodes] for expect in ('src', 'src-perm', 'dest', 'dest-perm'): self.assertTrue(expect in nodes, '%s disappeared' % expect) self.assertFalse('mirror-filter' in nodes, 'Mirror filter node did not disappear') # Test cases for @replaces that do not necessarily involve Quorum class TestReplaces(iotests.QMPTestCase): # Each of these test cases needs their own block graph, so do not # create any nodes here def setUp(self): self.vm = iotests.VM() self.vm.launch() def tearDown(self): self.vm.shutdown() for img in (test_img, target_img): try: os.remove(img) except OSError: pass @iotests.skip_if_unsupported(['copy-on-read']) def test_replace_filter(self): """ Check that we can replace filter nodes. """ result = self.vm.qmp('blockdev-add', **{ 'driver': 'copy-on-read', 'node-name': 'filter0', 'file': { 'driver': 'copy-on-read', 'node-name': 'filter1', 'file': { 'driver': 'null-co' } } }) self.assert_qmp(result, 'return', {}) result = self.vm.qmp('blockdev-add', node_name='target', driver='null-co') self.assert_qmp(result, 'return', {}) result = self.vm.qmp('blockdev-mirror', job_id='mirror', device='filter0', target='target', sync='full', replaces='filter1') self.assert_qmp(result, 'return', {}) self.complete_and_wait('mirror') self.vm.assert_block_path('filter0', '/file', 'target') if __name__ == '__main__': iotests.main(supported_fmts=['qcow2', 'qed'], supported_protocols=['file'], supported_platforms=['linux', 'freebsd', 'netbsd', 'openbsd'])