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authorVitalii Koriakov <vkoriako@redhat.com>2018-06-05 15:54:28 +0300
committerAkarsha Rai <akrai@redhat.com>2018-08-07 06:49:12 +0000
commit42dbbc408aef6246102a956407d99089d95fbef8 (patch)
tree996be301916c3798e86c7bbd0ef7ba20c116c796
parent81cfaea2640ba6f22db0fbf7114451a41236cd32 (diff)
Rename of a file cause no data loss in an arbiter volume configuration
Change-Id: Ie25f33d52730ee5482d656bf5a75f1d983cca78e Signed-off-by: Vitalii Koriakov <vkoriako@redhat.com>
-rwxr-xr-xtests/functional/arbiter/test_no_data_loss_arbiter_vol_after_rename_file.py284
1 files changed, 284 insertions, 0 deletions
diff --git a/tests/functional/arbiter/test_no_data_loss_arbiter_vol_after_rename_file.py b/tests/functional/arbiter/test_no_data_loss_arbiter_vol_after_rename_file.py
new file mode 100755
index 0000000..80339e5
--- /dev/null
+++ b/tests/functional/arbiter/test_no_data_loss_arbiter_vol_after_rename_file.py
@@ -0,0 +1,284 @@
+# Copyright (C) 2016-2018 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.volume_ops import (set_volume_options,
+ get_volume_options)
+from glustolibs.gluster.brick_libs import (bring_bricks_offline,
+ bring_bricks_online,
+ are_bricks_offline,
+ get_all_bricks)
+from glustolibs.gluster.heal_libs import (monitor_heal_completion,
+ is_heal_complete,
+ is_volume_in_split_brain)
+from glustolibs.misc.misc_libs import upload_scripts
+
+
+@runs_on([['replicated'],
+ ['glusterfs']])
+class ArbiterSelfHealTests(GlusterBaseClass):
+ """
+ Arbiter Self-Heal tests
+ """
+ @classmethod
+ def setUpClass(cls):
+ # Calling GlusterBaseClass setUpClass
+ GlusterBaseClass.setUpClass.im_func(cls)
+
+ # Upload io scripts for running IO on mounts
+ g.log.info("Upload io scripts to clients %s for running IO on mounts",
+ cls.clients)
+ script_local_path = ("/usr/share/glustolibs/io/scripts/"
+ "file_dir_ops.py")
+ cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
+ "file_dir_ops.py")
+ ret = upload_scripts(cls.clients, [script_local_path])
+ if not ret:
+ raise ExecutionError("Failed to upload IO scripts to clients %s"
+ % cls.clients)
+ g.log.info("Successfully uploaded IO scripts to clients %s",
+ cls.clients)
+
+ def setUp(self):
+ """
+ setUp method for every test
+ """
+
+ # calling GlusterBaseClass setUp
+ GlusterBaseClass.setUp.im_func(self)
+
+ # Setup Volume and Mount Volume
+ g.log.info("Starting to Setup Volume %s", self.volname)
+ ret = self.setup_volume_and_mount_volume(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
+ """
+
+ # 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_no_data_loss_arbiter_vol_after_rename_file(self):
+ """
+ - Create a 1x(2+1) arbiter replicate volume
+ - Turn off self-heal daemon
+ - Create a directory 'test_dir'
+ - Bring down the 1-st data brick
+ - Create a file under 'test_dir'
+ - Bring down the 2-nd data brick
+ - Bring up the 1-st data brick
+ - Rename file under 'test_dir'
+ - Bring up the 2-nd data brick
+ - Trigger heal
+ - Check if no pending heals
+ - Check if md5sum on mountpoint is the same for md5sum_node on nodes
+ """
+ # pylint: disable=too-many-locals,too-many-statements
+ test_dir = 'test_dir'
+
+ # Setting options
+ options = {"self-heal-daemon": "off"}
+ g.log.info('Setting options %s for volume %s...',
+ options, self.volname)
+ ret = set_volume_options(self.mnode, self.volname, options)
+ self.assertTrue(ret, 'Failed to set options %s for volume %s'
+ % (options, self.volname))
+ g.log.info("Successfully set %s for volume %s",
+ options, self.volname)
+
+ # Check if options are set to off
+ options_dict = get_volume_options(self.mnode, self.volname)
+ self.assertEqual(options_dict['cluster.self-heal-daemon'], 'off',
+ 'Option self-heal-daemon is not set to off')
+ g.log.info('Option are set to off for volume %s: %s',
+ options, self.volname)
+
+ # Creating IO on client side
+ g.log.info("Generating data for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ # Create dir
+ g.log.info('Creating dir...')
+ command = ('python %s create_deep_dir -d 1 -l 0 -n 1 %s/%s'
+ % (self.script_upload_path,
+ self.mounts[0].mountpoint,
+ test_dir))
+
+ ret, _, err = g.run(self.mounts[0].client_system, command,
+ user=self.mounts[0].user)
+
+ self.assertFalse(ret, err)
+ g.log.info("IO is successful")
+
+ # get the bricks for the volume
+ g.log.info("Fetching bricks for the volume : %s", self.volname)
+ bricks_list = get_all_bricks(self.mnode, self.volname)
+ g.log.info("Brick List : %s", bricks_list)
+
+ # Bring brick 1 offline
+ bricks_to_bring_offline = [bricks_list[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)
+
+ # Create file under dir test_dir
+ g.log.info("Generating file for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ # Create file
+ g.log.info('Creating file...')
+ command = ("python %s create_files -f 1 %s/%s"
+ % (self.script_upload_path,
+ self.mounts[0].mountpoint,
+ test_dir))
+
+ ret, _, err = g.run(self.mounts[0].client_system, command,
+ user=self.mounts[0].user)
+
+ self.assertFalse(ret, err)
+ g.log.info("Created file successfully")
+
+ # get md5sum for file
+ g.log.info('Getting md5sum for file on %s', self.mounts[0].mountpoint)
+
+ command = ("md5sum %s/%s/testfile0.txt | awk '{ print $1 }'"
+ % (self.mounts[0].mountpoint, test_dir))
+
+ ret, md5sum, err = g.run(self.mounts[0].client_system, command,
+ user=self.mounts[0].user)
+ self.assertFalse(ret, err)
+ g.log.info('md5sum: %s', md5sum)
+
+ # Bring brick 2 offline
+ bricks_to_bring_offline = [bricks_list[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)
+
+ # Bring 1-st brick online
+ bricks_to_bring_online = [bricks_list[0]]
+ g.log.info('Bringing bricks %s online...', bricks_to_bring_online)
+ ret = bring_bricks_online(self.mnode, self.volname,
+ bricks_to_bring_online)
+ self.assertTrue(ret, 'Failed to bring bricks %s online'
+ % bricks_to_bring_online)
+ g.log.info('Bringing bricks %s online is successful',
+ bricks_to_bring_online)
+
+ # Rename file under test_dir
+ g.log.info("Renaming file for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ command = ("python %s mv %s/%s"
+ % (self.script_upload_path,
+ self.mounts[0].mountpoint,
+ test_dir))
+ ret, _, err = g.run(self.mounts[0].client_system, command)
+ self.assertFalse(ret, err)
+ g.log.info("Renaming file for %s:%s is successful",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+
+ # Bring 2-nd 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)
+
+ # Mount and unmount mounts
+ ret = self.unmount_volume(self.mounts)
+ self.assertTrue(ret, 'Failed to unmount %s' % self.volname)
+
+ ret = self.mount_volume(self.mounts)
+ self.assertTrue(ret, 'Unable to mount %s' % self.volname)
+
+ # Trigger heal from mount point
+ g.log.info("Triggering heal for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ command = ("python %s read %s/%s"
+ % (self.script_upload_path,
+ self.mounts[0].mountpoint,
+ test_dir))
+
+ ret, _, err = g.run(self.mounts[0].client_system, command)
+ self.assertFalse(ret, 'Failed to start "find . | xargs stat" '
+ 'on %s'
+ % self.mounts[0].client_system)
+
+ # 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')
+
+ # Get md5sum for file on all nodes and compare with mountpoint
+ for brick in bricks_list[0:2]:
+ g.log.info('Getting md5sum for file on %s', brick)
+ node, brick_path = brick.split(':')
+ command = ("md5sum %s/%s/testfile0_a.txt | awk '{ print $1 }'"
+ % (brick_path, test_dir))
+ ret, md5sum_node, err = g.run(node, command,
+ user=self.mounts[0].user)
+ self.assertFalse(ret, err)
+ g.log.info('md5sum for the node: %s', md5sum_node)
+
+ # comparing md5sum_node result with mountpoint
+ g.log.info('Comparing md5sum result with mountpoint...')
+ self.assertEqual(md5sum, md5sum_node, 'File contents are not equal'
+ ' on %s and %s'
+ % (self.mounts[0].mountpoint, brick))
+ g.log.info('File contents are equal on %s and %s',
+ self.mounts[0].mountpoint, brick)