# 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.volume_ops import set_volume_options from glustolibs.gluster.volume_libs import ( verify_all_process_of_volume_are_online, wait_for_volume_process_to_be_online) from glustolibs.gluster.volume_libs import expand_volume from glustolibs.gluster.brick_libs import (select_bricks_to_bring_offline, 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, is_shd_daemonized) from glustolibs.gluster.rebalance_ops import (rebalance_start, wait_for_rebalance_to_complete) from glustolibs.gluster.heal_ops import trigger_heal from glustolibs.io.utils import (collect_mounts_arequal, validate_io_procs) @runs_on([['arbiter', 'distributed-arbiter'], ['glusterfs', 'nfs']]) class TestSelfHeal(GlusterBaseClass): """ Description: Arbiter Test cases related to healing in default configuration of the volume """ def setUp(self): # Calling GlusterBaseClass setUp self.get_super_method(self, 'setUp')() # Setup Volume and Mount Volume 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): """ Cleanup and umount volume """ # Cleanup and umount volume ret = self.unmount_volume_and_cleanup_volume(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_50k_files_heal_command_by_add_brick(self): """ Test self-heal of 50k files (heal command) Description: - Set the volume option "metadata-self-heal": "off" "entry-self-heal": "off" "data-self-heal": "off" "self-heal-daemon": "off" - Bring down all bricks processes from selected set - Create IO (50k files) - Get arequal before getting bricks online - Bring bricks online - Set the volume option "self-heal-daemon": "on" - Check for daemons - Start healing - Check if heal is completed - Check for split-brain - Get arequal after getting bricks online and compare with arequal before getting bricks online - Add bricks - Do rebalance - Get arequal after adding bricks and compare with arequal after getting bricks online """ # pylint: disable=too-many-locals,too-many-statements # Setting options options = {"metadata-self-heal": "off", "entry-self-heal": "off", "data-self-heal": "off", "self-heal-daemon": "off"} ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, 'Failed to set options') g.log.info("Successfully set %s for volume %s", options, self.volname) # Select bricks to bring offline bricks_to_bring_offline_dict = (select_bricks_to_bring_offline( self.mnode, self.volname)) bricks_to_bring_offline = bricks_to_bring_offline_dict['volume_bricks'] # Bring brick 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) # Creating files on client side all_mounts_procs = [] # Create 50k files g.log.info('Creating files...') command = ("cd %s ; " "for i in `seq 1 50000` ; " "do dd if=/dev/urandom of=test.$i " "bs=100k count=1 ; " "done ;" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, command, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue( validate_io_procs(all_mounts_procs, self.mounts[0]), "IO failed on some of the clients" ) # Get arequal before getting bricks online ret, result_before_online = collect_mounts_arequal(self.mounts[0]) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Getting arequal before getting bricks online ' 'is successful') # Bring brick online 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) # Setting options ret = set_volume_options(self.mnode, self.volname, {"self-heal-daemon": "on"}) self.assertTrue(ret, 'Failed to set option self-heal-daemon to ON.') g.log.info("Option 'self-heal-daemon' is set to 'on' successfully") # 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 %s processes to " "be online", 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 %s : All process are not online" % self.volname)) g.log.info("Volume %s : All process are online", self.volname) # Wait for self-heal-daemons to be online ret = is_shd_daemonized(self.all_servers) self.assertTrue(ret, "Either No self heal daemon process found") g.log.info("All self-heal-daemons are online") # 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, timeout_period=3600) 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 after getting bricks online ret, result_after_online = collect_mounts_arequal(self.mounts[0]) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Getting arequal after getting bricks online ' 'is successful') # Checking arequals before bringing bricks online # and after bringing bricks online self.assertEqual(sorted(result_before_online), sorted(result_after_online), 'Checksums before and ' 'after bringing bricks online are not equal') g.log.info('Checksums before and after bringing bricks online ' 'are equal') # Add bricks ret = expand_volume(self.mnode, self.volname, self.servers, self.all_servers_info) self.assertTrue(ret, ("Failed to expand the volume when IO in " "progress on volume %s", self.volname)) g.log.info("Expanding volume is successful on volume %s", self.volname) # Do rebalance and wait for it to complete ret, _, _ = rebalance_start(self.mnode, self.volname) self.assertEqual(ret, 0, 'Failed to start rebalance') g.log.info('Rebalance is started') ret = wait_for_rebalance_to_complete(self.mnode, self.volname, timeout=3600) self.assertTrue(ret, 'Rebalance is not completed') g.log.info('Rebalance is completed successfully') # Get arequal after adding bricks ret, result_after_adding_bricks = collect_mounts_arequal( self.mounts[0]) self.assertTrue(ret, 'Failed to get arequal') g.log.info('Getting arequal after getting bricks ' 'is successful') # Checking arequals after bringing bricks online # and after adding bricks self.assertEqual(sorted(result_after_online), sorted(result_after_adding_bricks), 'Checksums after bringing bricks online' 'and after adding bricks are not equal') g.log.info('Checksums after bringing bricks online and ' 'after adding bricks are equal')