# Copyright (C) 2016-2018 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_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) # Enable client side healing g.log.info("Enable client side healing options") options = {"metadata-self-heal": "on", "entry-self-heal": "on", "data-self-heal": "on"} ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, 'Failed to set options %s' % options) g.log.info("Successfully set %s for volume %s", options, 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)