# Copyright (C) 2020 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 # 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_libs import ( verify_all_process_of_volume_are_online, wait_for_volume_process_to_be_online) from glustolibs.gluster.brick_libs import ( select_volume_bricks_to_bring_offline, bring_bricks_offline, bring_bricks_online, are_bricks_offline) from glustolibs.gluster.heal_libs import (monitor_heal_completion, is_volume_in_split_brain) from glustolibs.io.utils import (collect_mounts_arequal) from glustolibs.gluster.glusterdir import mkdir from glustolibs.gluster.glusterfile import get_file_stat @runs_on([['arbiter', 'distributed-arbiter'], ['glusterfs']]) class TestSelfHealDaemon(GlusterBaseClass): """ Description: Arbiter Test cases related to self heal of data and hardlink """ def setUp(self): # Calling GlusterBaseClass self.get_super_method(self, 'setUp')() # 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): """ Cleanup and umount volume """ # Cleanup and umount 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 self.get_super_method(self, 'tearDown')() def test_self_heal_daemon(self): """ Test Data-Self-Heal(heal command) Description: - Create directory test_hardlink_self_heal - Create directory test_data_self_heal - Creating files for hardlinks and data files - Get arequal before getting bricks offline - Select bricks to bring offline - Bring brick offline - Create hardlinks and append data to data files - Bring brick online - Wait for volume processes to be online - Verify volume's all process are online - Monitor heal completion - Check for split-brain - Get arequal after getting bricks online - Select bricks to bring offline - Bring brick offline - Truncate data to data files and verify hardlinks - Bring brick online - Wait for volume processes to be online - Verify volume's all process are online - Monitor heal completion - Check for split-brain - Get arequal again """ # pylint: disable=too-many-branches,too-many-statements,too-many-locals # Creating directory test_hardlink_self_heal ret = mkdir(self.mounts[0].client_system, "{}/test_hardlink_self_heal" .format(self.mounts[0].mountpoint)) self.assertTrue(ret, "Failed to create directory") g.log.info("Directory 'test_hardlink_self_heal' on %s created " "successfully", self.mounts[0]) # Creating directory test_data_self_heal ret = mkdir(self.mounts[0].client_system, "{}/test_data_self_heal" .format(self.mounts[0].mountpoint)) self.assertTrue(ret, "Failed to create directory") g.log.info("Directory test_hardlink_self_heal on %s created " "successfully", self.mounts[0]) # Creating files for hardlinks and data files cmd = ('cd %s/test_hardlink_self_heal;for i in `seq 1 5`;' 'do mkdir dir.$i ; for j in `seq 1 10` ; do dd if=' '/dev/urandom of=dir.$i/file.$j bs=1k count=$j;done; done;' 'cd ..' % self.mounts[0].mountpoint) ret, _, _ = g.run(self.mounts[0].client_system, cmd) self.assertEqual(ret, 0, "Failed to create file on mountpoint") g.log.info("Successfully created files on mountpoint") cmd = ('cd %s/test_data_self_heal;for i in `seq 1 100`;' 'do dd if=/dev/urandom of=file.$i bs=128K count=$i;done;' 'cd ..' % self.mounts[0].mountpoint) ret, _, _ = g.run(self.mounts[0].client_system, cmd) self.assertEqual(ret, 0, "Failed to create file on mountpoint") g.log.info("Successfully created files on mountpoint") # Get arequal before getting bricks offline ret, result_before_online = collect_mounts_arequal(self.mounts) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Arequal before getting bricks online-%s', result_before_online) # Select bricks to bring offline bricks_to_bring_offline = select_volume_bricks_to_bring_offline( self.mnode, self.volname) self.assertIsNotNone(bricks_to_bring_offline, "List is empty") # Bring brick offline ret = bring_bricks_offline(self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Failed to bring bricks {} offline'. format(bricks_to_bring_offline)) ret = are_bricks_offline(self.mnode, self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Bricks {} are not offline'. format(bricks_to_bring_offline)) g.log.info('Bringing bricks %s offline is successful', bricks_to_bring_offline) # Append data to data files and create hardlinks cmd = ('cd %s/test_data_self_heal;for i in `seq 1 100`;' 'do dd if=/dev/urandom of=file.$i bs=512K count=$i ; done ;' 'cd .. ' % self.mounts[0].mountpoint) ret, _, _ = g.run(self.mounts[0].client_system, cmd) self.assertEqual(ret, 0, "Failed to modify data files.") g.log.info("Successfully modified data files") cmd = ('cd %s/test_hardlink_self_heal;for i in `seq 1 5` ;do ' 'for j in `seq 1 10`;do ln dir.$i/file.$j dir.$i/link_file.$j;' 'done ; done ; cd .. ' % self.mounts[0].mountpoint) ret, _, _ = g.run(self.mounts[0].client_system, cmd) self.assertEqual(ret, 0, "Hardlinks creation failed") g.log.info("Successfully created hardlinks of files") # Bring bricks online ret = bring_bricks_online(self.mnode, self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Failed to bring bricks {} online'.format (bricks_to_bring_offline)) g.log.info('Bringing bricks %s online is successful', bricks_to_bring_offline) # Wait for volume processes to be online ret = wait_for_volume_process_to_be_online(self.mnode, self.volname) self.assertTrue(ret, ("Failed to wait for volume {} processes to " "be online".format(self.volname))) g.log.info("Successful in waiting for volume %s processes to be " "online", self.volname) # Verify volume's all process are online ret = verify_all_process_of_volume_are_online(self.mnode, self.volname) self.assertTrue(ret, ("Volume {} : All process are not online".format (self.volname))) g.log.info("Volume %s : All process are online", self.volname) # Monitor heal completion ret = monitor_heal_completion(self.mnode, self.volname) self.assertTrue(ret, 'Heal has not yet completed') # 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 arequal after getting bricks online ret, result_after_online = collect_mounts_arequal(self.mounts) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Arequal after getting bricks online ' 'is %s', result_after_online) # Select bricks to bring offline bricks_to_bring_offline = select_volume_bricks_to_bring_offline( self.mnode, self.volname) self.assertIsNotNone(bricks_to_bring_offline, "List is empty") # Bring brick offline ret = bring_bricks_offline(self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Failed to bring bricks {} offline'.format (bricks_to_bring_offline)) ret = are_bricks_offline(self.mnode, self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Bricks {} are not offline'.format (bricks_to_bring_offline)) g.log.info('Bringing bricks %s offline is successful', bricks_to_bring_offline) # Truncate data to data files and verify hardlinks cmd = ('cd %s/test_data_self_heal ; for i in `seq 1 100` ;' 'do truncate -s $(( $i * 128)) file.$i ; done ; cd ..' % self.mounts[0].mountpoint) ret, _, _ = g.run(self.mounts[0].client_system, cmd) self.assertEqual(ret, 0, "Failed to truncate files") g.log.info("Successfully truncated files on mountpoint") file_path = ('%s/test_hardlink_self_heal/dir{1..5}/file{1..10}' % (self.mounts[0].mountpoint)) link_path = ('%s/test_hardlink_self_heal/dir{1..5}/link_file{1..10}' % (self.mounts[0].mountpoint)) file_stat = get_file_stat(self.mounts[0], file_path) link_stat = get_file_stat(self.mounts[0], link_path) self.assertEqual(file_stat, link_stat, "Verification of hardlinks " "failed") g.log.info("Successfully verified hardlinks") # Bring brick online ret = bring_bricks_online(self.mnode, self.volname, bricks_to_bring_offline) self.assertTrue(ret, 'Failed to bring bricks {} online'.format (bricks_to_bring_offline)) g.log.info('Bringing bricks %s online is successful', bricks_to_bring_offline) # Wait for volume processes to be online ret = wait_for_volume_process_to_be_online(self.mnode, self.volname) self.assertTrue(ret, ("Failed to wait for volume {} processes to " "be online".format(self.volname))) g.log.info("Successful in waiting for volume %s processes to be " "online", self.volname) # Verify volume's all process are online ret = verify_all_process_of_volume_are_online(self.mnode, self.volname) self.assertTrue(ret, ("Volume {} : All process are not online".format (self.volname))) g.log.info("Volume %s : All process are online", self.volname) # Monitor heal completion ret = monitor_heal_completion(self.mnode, self.volname) self.assertTrue(ret, 'Heal has not yet completed')