# Copyright (C) 2015-2018 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.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.gluster.heal_ops import trigger_heal from glustolibs.misc.misc_libs import upload_scripts from glustolibs.io.utils import (validate_io_procs, wait_for_io_to_complete) @runs_on([['replicated'], ['glusterfs', 'cifs', 'nfs']]) class TestSelfHeal(GlusterBaseClass): @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) if cls.volume_type == "replicated": # Define x3 replicated volume cls.volume['voltype'] = { 'type': 'replicated', 'replica_count': 3, 'transport': 'tcp'} def setUp(self): # Calling GlusterBaseClass setUp GlusterBaseClass.setUp.im_func(self) 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 GlusterBaseClass.tearDown.im_func(self) def test_heal_command_unsuccessful_as_bricks_down(self): """ - write 2 Gb file on mount - while write is in progress, kill brick b0 - start heal on the volume (should fail and have error message) - bring up the brick which was down (b0) - bring down another brick (b1) - start heal on the volume (should fail and have error message) - bring bricks up - wait for heal to complete """ # pylint: disable=too-many-statements bricks_list = get_all_bricks(self.mnode, self.volname) self.assertIsNotNone(bricks_list, 'Brick list is None') # Creating files on client side for mount_obj in self.mounts: g.log.info("Generating data for %s:%s", mount_obj.client_system, mount_obj.mountpoint) # Create 2 Gb file g.log.info('Creating files...') command = ("cd %s ; dd if=/dev/zero of=file1 bs=10M count=200" % mount_obj.mountpoint) proc = g.run_async(mount_obj.client_system, command, user=mount_obj.user) self.all_mounts_procs.append(proc) self.io_validation_complete = False # Bring brick0 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 healing # Need to use 'gluster volume heal' command to check error message # after g.run cmd = "gluster volume heal %s" % self.volname ret, _, err = g.run(self.mnode, cmd) self.assertTrue(ret, 'Heal is started') # Check for error message self.assertIn("Launching heal operation to perform index self heal on " "volume %s has been unsuccessful" % self.volname, err, "Error message is not present or not valid") g.log.info('Expected: Healing is not started') # Bring brick0 online g.log.info("Bring 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("Successfully brought all bricks:%s online", bricks_list[0]) # Bring brick1 offline g.log.info('Bringing bricks %s offline...', bricks_list[1]) ret = bring_bricks_offline(self.volname, [bricks_list[1]]) self.assertTrue(ret, 'Failed to bring bricks %s offline' % bricks_list[1]) ret = are_bricks_offline(self.mnode, self.volname, [bricks_list[1]]) self.assertTrue(ret, 'Bricks %s are not offline' % bricks_list[1]) g.log.info('Bringing bricks %s offline is successful', bricks_list[1]) # Start healing # Need to use 'gluster volume heal' command to check error message # after g.run cmd = "gluster volume heal %s" % self.volname ret, _, err = g.run(self.mnode, cmd) self.assertTrue(ret, 'Heal is started') # Check for error message self.assertIn("Launching heal operation to perform index self heal on " "volume %s has been unsuccessful" % self.volname, err, "Error message is not present or not valid") g.log.info('Expected: Healing is not started') # Bring brick 1 online g.log.info("Bring bricks: %s online", bricks_list[1]) ret = bring_bricks_online(self.mnode, self.volname, [bricks_list[1]]) self.assertTrue(ret, "Failed to bring bricks: %s online" % bricks_list[1]) g.log.info("Successfully brought all bricks:%s online", bricks_list[1]) # 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) 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') # 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