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authorVitalii Koriakov <vkoriako@redhat.com>2018-06-15 14:41:21 +0300
committerJonathan Holloway <jholloway@redhat.com>2018-06-19 04:23:05 +0000
commitb585613e73ef8a2906e21d03e2050a4308c5b772 (patch)
treeeb0beed8c2131b1a0f2f8b88284046ee66c5d6c3 /tests
parent7ef1b474e0ac167f0306385d823da22302edd364 (diff)
Resolving meta-data split-brain from client using extended attributes
Change-Id: I2ba674b8ea97964040f2e7d47a169c1e41808116 Signed-off-by: Vitalii Koriakov <vkoriako@redhat.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/functional/arbiter/test_resolving_meta_data_split_brain_extended_attributes.py257
1 files changed, 257 insertions, 0 deletions
diff --git a/tests/functional/arbiter/test_resolving_meta_data_split_brain_extended_attributes.py b/tests/functional/arbiter/test_resolving_meta_data_split_brain_extended_attributes.py
new file mode 100644
index 0000000..e6f68c0
--- /dev/null
+++ b/tests/functional/arbiter/test_resolving_meta_data_split_brain_extended_attributes.py
@@ -0,0 +1,257 @@
+# Copyright (C) 2015-2018 Red Hat, Inc. <http://www.redhat.com>
+#
+# 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
+# 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from glusto.core import Glusto as g
+from glustolibs.gluster.gluster_base_class import (GlusterBaseClass, runs_on)
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.heal_ops import trigger_heal
+from glustolibs.gluster.volume_libs import get_subvols
+from glustolibs.gluster.brick_libs import (bring_bricks_offline,
+ bring_bricks_online,
+ are_bricks_offline)
+from glustolibs.gluster.heal_libs import (monitor_heal_completion,
+ is_heal_complete,
+ is_volume_in_split_brain)
+from glustolibs.io.utils import (validate_io_procs,
+ list_all_files_and_dirs_mounts,
+ wait_for_io_to_complete)
+
+
+@runs_on([['distributed-replicated'],
+ ['glusterfs', 'nfs', 'cifs']])
+class TestArbiterSelfHeal(GlusterBaseClass):
+ """
+ Description:
+ Arbiter Test cases related to
+ healing in default configuration of the volume
+ """
+
+ def setUp(self):
+ # Calling GlusterBaseClass setUp
+ GlusterBaseClass.setUp.im_func(self)
+
+ # Setup Volumes
+ if self.volume_type == "distributed-replicated":
+ # Redefine distributed-replicated volume
+ self.volume['voltype'] = {
+ 'type': 'distributed-replicated',
+ 'replica_count': 3,
+ 'dist_count': 2,
+ 'arbiter_count': 1,
+ 'transport': 'tcp'}
+
+ self.all_mounts_procs = []
+ self.io_validation_complete = False
+
+ # Setup Volume and Mount Volume
+ g.log.info("Starting to Setup Volume and Mount Volume")
+ ret = self.setup_volume_and_mount_volume(mounts=self.mounts)
+ if not ret:
+ raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
+ g.log.info("Successful in Setup Volume and Mount Volume")
+
+ def tearDown(self):
+ """
+ If test method failed before validating IO, tearDown waits for the
+ IO's to complete and checks for the IO exit status
+
+ Cleanup and umount volume
+ """
+ if not self.io_validation_complete:
+ g.log.info("Wait for IO to complete as IO validation did not "
+ "succeed in test method")
+ ret = wait_for_io_to_complete(self.all_mounts_procs, self.mounts)
+ if not ret:
+ raise ExecutionError("IO failed on some of the clients")
+ g.log.info("IO is successful on all mounts")
+
+ # List all files and dirs created
+ g.log.info("List all files and directories:")
+ ret = list_all_files_and_dirs_mounts(self.mounts)
+ if not ret:
+ raise ExecutionError("Failed to list all files and dirs")
+ g.log.info("Listing all files and directories is successful")
+
+ # Cleanup and umount volume
+ g.log.info("Starting to Unmount Volume and Cleanup Volume")
+ ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts)
+ if not ret:
+ raise ExecutionError("Failed to umount the vol & cleanup Volume")
+ g.log.info("Successful in umounting the volume and Cleanup")
+
+ # Calling GlusterBaseClass teardown
+ GlusterBaseClass.tearDown.im_func(self)
+
+ def test_resolving_meta_data(self):
+ """
+ - Create a file test_file.txt
+ - Find out which brick the file resides on and kill arbiter brick
+ in the replica pair
+ - Modify the permissions of the file
+ - Bring back the killed brick
+ - Kill the other brick in the replica pair
+ - Modify the permissions of the file
+ - Bring back the killed brick
+ - Trigger heal
+ - Check if heal is completed
+ - Check for split-brain
+ """
+ # pylint: disable=too-many-locals,too-many-statements
+ # Creating files on client side
+ file_to_create = 'test_file.txt'
+ for mount_obj in self.mounts:
+ g.log.info("Generating data for %s:%s",
+ mount_obj.client_system, mount_obj.mountpoint)
+ # Create file
+ g.log.info('Creating file...')
+ command = ("cd %s ; "
+ "touch %s"
+ % (mount_obj.mountpoint, file_to_create))
+
+ proc = g.run_async(mount_obj.client_system, command,
+ user=mount_obj.user)
+ self.all_mounts_procs.append(proc)
+ self.io_validation_complete = False
+
+ # Validate IO
+ g.log.info("Wait for IO to complete and validate IO ...")
+ ret = validate_io_procs(self.all_mounts_procs, self.mounts)
+ self.assertTrue(ret, "IO failed on some of the clients")
+ self.io_validation_complete = True
+ g.log.info("IO is successful on all mounts")
+
+ # get bricks with file
+ g.log.info('Getting bricks with file...')
+ subvols_dict = get_subvols(self.mnode, self.volname)
+ brick_list_with_file = []
+ for subvol in subvols_dict['volume_subvols']:
+ for brick in subvol:
+ node, brick_path = brick.split(':')
+ ret, brick_file_list, _ = g.run(node, 'ls %s' % brick_path)
+ if 'test_file.txt' in brick_file_list:
+ brick_list_with_file.append(brick)
+ g.log.info('Bricks with file: %s', brick_list_with_file)
+
+ # Bring arbiter brick offline
+ bricks_to_bring_offline = [brick_list_with_file[-1]]
+ g.log.info('Bringing bricks %s offline...', bricks_to_bring_offline)
+ ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
+ self.assertTrue(ret, 'Failed to bring bricks %s offline' %
+ bricks_to_bring_offline)
+
+ ret = are_bricks_offline(self.mnode, self.volname,
+ bricks_to_bring_offline)
+ self.assertTrue(ret, 'Bricks %s are not offline'
+ % bricks_to_bring_offline)
+ g.log.info('Bringing bricks %s offline is successful',
+ bricks_to_bring_offline)
+
+ # Modify the data
+ self.all_mounts_procs = []
+ for mount_obj in self.mounts:
+ g.log.info("Modifying data for %s:%s",
+ mount_obj.client_system, mount_obj.mountpoint)
+ # Modify the permissions
+ g.log.info('Modifying the permissions of the file...')
+ command = ("cd %s ; "
+ "chmod 600 %s"
+ % (mount_obj.mountpoint, file_to_create))
+
+ proc = g.run_async(mount_obj.client_system, command,
+ user=mount_obj.user)
+ self.all_mounts_procs.append(proc)
+ self.io_validation_complete = False
+
+ # Validate IO
+ g.log.info("Wait for IO to complete and validate IO ...")
+ ret = validate_io_procs(self.all_mounts_procs, self.mounts)
+ self.assertTrue(ret, "IO failed on some of the clients")
+ self.io_validation_complete = True
+ g.log.info("IO is successful on all mounts")
+
+ # Bring arbiter brick online
+ g.log.info('Bringing bricks %s online...', bricks_to_bring_offline)
+ ret = bring_bricks_online(self.mnode, self.volname,
+ bricks_to_bring_offline)
+ self.assertTrue(ret, 'Failed to bring bricks %s online' %
+ bricks_to_bring_offline)
+ g.log.info('Bringing bricks %s online is successful',
+ bricks_to_bring_offline)
+
+ # Bring 1-st data brick offline
+ bricks_to_bring_offline = [brick_list_with_file[0]]
+ g.log.info('Bringing bricks %s offline...', bricks_to_bring_offline)
+ ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
+ self.assertTrue(ret, 'Failed to bring bricks %s offline' %
+ bricks_to_bring_offline)
+
+ ret = are_bricks_offline(self.mnode, self.volname,
+ bricks_to_bring_offline)
+ self.assertTrue(ret, 'Bricks %s are not offline'
+ % bricks_to_bring_offline)
+ g.log.info('Bringing bricks %s offline is successful',
+ bricks_to_bring_offline)
+
+ # Modify the data
+ self.all_mounts_procs = []
+ for mount_obj in self.mounts:
+ g.log.info("Modifying data for %s:%s",
+ mount_obj.client_system, mount_obj.mountpoint)
+ # Modify the permissions
+ g.log.info('Modifying the permissions of the file...')
+ command = ("cd %s ; "
+ "chmod 644 %s"
+ % (mount_obj.mountpoint, file_to_create))
+
+ proc = g.run_async(mount_obj.client_system, command,
+ user=mount_obj.user)
+ self.all_mounts_procs.append(proc)
+ self.io_validation_complete = False
+
+ # Validate IO
+ g.log.info("Wait for IO to complete and validate IO ...")
+ ret = validate_io_procs(self.all_mounts_procs, self.mounts)
+ self.assertTrue(ret, "IO failed on some of the clients")
+ self.io_validation_complete = True
+ g.log.info("IO is successful on all mounts")
+
+ # Bring 1-st data brick online
+ g.log.info('Bringing bricks %s online...', bricks_to_bring_offline)
+ ret = bring_bricks_online(self.mnode, self.volname,
+ bricks_to_bring_offline)
+ self.assertTrue(ret, 'Failed to bring bricks %s online' %
+ bricks_to_bring_offline)
+ g.log.info('Bringing bricks %s online is successful',
+ bricks_to_bring_offline)
+
+ # Start healing
+ ret = trigger_heal(self.mnode, self.volname)
+ self.assertTrue(ret, 'Heal is not started')
+ g.log.info('Healing is started')
+
+ # Monitor heal completion
+ ret = monitor_heal_completion(self.mnode, self.volname)
+ self.assertTrue(ret, 'Heal has not yet completed')
+
+ # Check if heal is completed
+ ret = is_heal_complete(self.mnode, self.volname)
+ self.assertTrue(ret, 'Heal is not complete')
+ g.log.info('Heal is completed successfully')
+
+ # Check for split-brain
+ ret = is_volume_in_split_brain(self.mnode, self.volname)
+ self.assertFalse(ret, 'Volume is in split-brain state')
+ g.log.info('Volume is not in split-brain state')