# Copyright (C) 2015-2020 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.brick_libs import (get_all_bricks, bring_bricks_offline, are_bricks_offline, bring_bricks_online) from glustolibs.gluster.brick_ops import add_brick from glustolibs.gluster.volume_libs import get_volume_type_info 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 from glustolibs.gluster.lib_utils import form_bricks_list from glustolibs.io.utils import (validate_io_procs, wait_for_io_to_complete, collect_mounts_arequal) @runs_on([['distributed'], ['glusterfs']]) class TestSelfHeal(GlusterBaseClass): @classmethod def setUpClass(cls): # Calling GlusterBaseClass setUpClass cls.get_super_method(cls, 'setUpClass')() # Upload io scripts for running IO on mounts g.log.info("Upload io scripts to clients %s for running IO on mounts", cls.clients) cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/" "file_dir_ops.py") ret = upload_scripts(cls.clients, cls.script_upload_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) if cls.volume_type == "distributed": # Define x1 distributed volume cls.volume['voltype'] = { 'type': 'distributed', 'dist_count': 1, 'transport': 'tcp'} def setUp(self): # Calling GlusterBaseClass setUp self.get_super_method(self, 'setUp')() 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 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") # 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 self.get_super_method(self, 'tearDown')() def test_dist_to_repl_automatic_heal_should_be_triggered(self): """ - create a single brick volume - add some files and directories - get arequal from mountpoint - add-brick such that this brick makes the volume a replica vol 1x2 - make sure heal is completed - get arequals from all bricks and compare with arequal from mountpoint - bring down brick 0 - create new files and validate IO - bring brick 0 up - make sure heal is completed """ # pylint: disable=too-many-statements,too-many-locals # Start IO on mounts g.log.info("Starting IO on all mounts...") self.all_mounts_procs = [] for mount_obj in self.mounts: g.log.info("Starting IO on %s:%s", mount_obj.client_system, mount_obj.mountpoint) cmd = ("/usr/bin/env python %s create_deep_dirs_with_files " "--dir-length 1 " "--dir-depth 1 " "--max-num-of-dirs 1 " "--num-of-files 10 %s" % ( self.script_upload_path, mount_obj.mountpoint)) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) self.all_mounts_procs.append(proc) g.log.info("IO on %s:%s is started successfully", mount_obj.client_system, mount_obj.mountpoint) self.io_validation_complete = False # Validate IO self.assertTrue( validate_io_procs(self.all_mounts_procs, self.mounts), "IO failed on some of the clients" ) self.io_validation_complete = True # Get arequal for mount before adding bricks g.log.info('Getting arequal before adding bricks...') ret, arequals = collect_mounts_arequal(self.mounts) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Getting arequal after healing is successful') mount_point_total = arequals[0].splitlines()[-1].split(':')[-1] # Form brick list to add g.log.info('Forming brick list to add...') bricks_to_add = form_bricks_list(self.mnode, self.volname, 1, self.servers, self.all_servers_info) g.log.info('Brick list to add: %s', bricks_to_add) # Add bricks g.log.info("Start adding bricks to volume...") ret, _, _ = add_brick(self.mnode, self.volname, bricks_to_add, force=True, replica_count=2) self.assertFalse(ret, "Failed to add bricks %s" % bricks_to_add) g.log.info("Adding bricks is successful on volume %s", self.volname) # Make sure the newly added bricks are available in the volume # 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) for brick in bricks_to_add: self.assertIn(brick, bricks_list, 'Brick %s is not in brick list' % brick) g.log.info('New bricks are present in the volume') # Make sure volume change from distribute to replicate volume vol_info_dict = get_volume_type_info(self.mnode, self.volname) vol_type = vol_info_dict['volume_type_info']['typeStr'] self.assertEqual('Replicate', vol_type, 'Volume type is not converted to Replicate ' 'after adding bricks') g.log.info('Volume type is successfully converted to Replicate ' 'after adding bricks') # 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 arequal on bricks and compare with mount_point_total # It should be the same g.log.info('Getting arequal on bricks...') arequals_after_heal = {} for brick in bricks_list: g.log.info('Getting arequal on bricks %s...', brick) node, brick_path = brick.split(':') command = ('arequal-checksum -p %s ' '-i .glusterfs -i .landfill -i .trashcan' % brick_path) ret, arequal, _ = g.run(node, command) self.assertFalse(ret, 'Failed to get arequal on brick %s' % brick) g.log.info('Getting arequal for %s is successful', brick) brick_total = arequal.splitlines()[-1].split(':')[-1] arequals_after_heal[brick] = brick_total self.assertEqual(mount_point_total, brick_total, 'Arequals for mountpoint and %s are not equal' % brick) g.log.info('Arequals for mountpoint and %s are equal', brick) g.log.info('All arequals are equal for replicated') # Bring brick 0 offline g.log.info('Bringing bricks %s offline...', bricks_list[0]) ret = bring_bricks_offline(self.volname, [bricks_list[0]]) self.assertTrue(ret, 'Failed to bring bricks %s offline' % bricks_list[0]) ret = are_bricks_offline(self.mnode, self.volname, [bricks_list[0]]) self.assertTrue(ret, 'Bricks %s are not offline' % bricks_list[0]) g.log.info('Bringing bricks %s offline is successful', bricks_list[0]) # Start IO on mounts g.log.info("Starting IO on all mounts...") self.all_mounts_procs = [] for mount_obj in self.mounts: g.log.info("Starting IO on %s:%s", mount_obj.client_system, mount_obj.mountpoint) cmd = ("/usr/bin/env python %s create_files -f 100 " "--fixed-file-size 1k %s" % ( self.script_upload_path, mount_obj.mountpoint)) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) self.all_mounts_procs.append(proc) g.log.info("IO on %s:%s is started successfully", mount_obj.client_system, mount_obj.mountpoint) self.io_validation_complete = False # Validate IO self.assertTrue( validate_io_procs(self.all_mounts_procs, self.mounts), "IO failed on some of the clients" ) self.io_validation_complete = True # Bring brick 0 online g.log.info('Bringing bricks %s online...', bricks_list[0]) ret = bring_bricks_online(self.mnode, self.volname, [bricks_list[0]]) self.assertTrue(ret, 'Failed to bring bricks %s online' % bricks_list[0]) g.log.info('Bringing bricks %s online is successful', bricks_list[0]) # 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')