# Copyright (C) 2018-2020 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. """ Description: Test cases in this module tests creation and mount of new volume while IO is in progress on another volume """ from copy import deepcopy from glusto.core import Glusto as g from glustolibs.gluster.nfs_ganesha_libs import ( wait_for_nfs_ganesha_volume_to_get_exported) from glustolibs.gluster.gluster_base_class import runs_on, GlusterBaseClass from glustolibs.gluster.exceptions import ExecutionError from glustolibs.misc.misc_libs import upload_scripts from glustolibs.io.utils import validate_io_procs, get_mounts_stat from glustolibs.gluster.volume_libs import ( cleanup_volume, wait_for_volume_process_to_be_online) from glustolibs.gluster.lib_utils import get_servers_bricks_dict from glustolibs.gluster.volume_ops import volume_create, volume_start from glustolibs.gluster.nfs_ganesha_ops import export_nfs_ganesha_volume @runs_on([['replicated', 'distributed', 'distributed-replicated', 'dispersed', 'distributed-dispersed'], ['nfs']]) class TestNewVolumeWhileIoInProgress(GlusterBaseClass): """ Test cases to verify creation, export and mount of new volume while IO is going on another volume exported through nfs-ganesha. """ @classmethod def setUpClass(cls): """ Setup nfs-ganesha if not exists. Upload IO scripts to clients """ 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) def setUp(self): """ Setup Volume and Mount Volume """ g.log.info("Starting to setup and mount volume %s", self.volname) ret = self.setup_volume_and_mount_volume(mounts=self.mounts) if not ret: raise ExecutionError("Failed to setup and mount volume %s" % self.volname) g.log.info("Successful in setup and mount volume %s", self.volname) def test_new_volume_while_io_in_progress(self): """ Create, export and mount new volume while IO running on mount of another volume Steps: 1. Start IO on mount points 2. Create another volume 'volume_new' 3. Export volume_new through nfs-ganesha 4. Mount the volume on clients """ # pylint: disable=too-many-statements, too-many-locals # Start IO on all mount points all_mounts_procs = [] count = 1 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 " "--dirname-start-num %d " "--dir-depth 2 " "--dir-length 10 " "--max-num-of-dirs 5 " "--num-of-files 5 %s" % ( self.script_upload_path, count, mount_obj.mountpoint)) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) all_mounts_procs.append(proc) count = count + 10 self.volname_new = '%s_new' % self.volname kwargs = {} dict_index = 0 # Creating mounts list for mounting new volume self.mounts_new = [] for mount_obj in self.mounts: self.mounts_new.append(deepcopy(mount_obj)) for mount_obj in self.mounts_new: mount_obj.volname = self.volname_new mount_obj.mountpoint = '%s_new' % mount_obj.mountpoint # Fetch details for creating a replicate volume. replica_count = ( self.default_volume_type_config['replicated']['replica_count']) servers_bricks_dict = get_servers_bricks_dict(self.all_servers, self.all_servers_info) bricks_list = [] kwargs['replica_count'] = replica_count kwargs['transport_type'] = ( self.default_volume_type_config['replicated']['transport']) for num in range(0, replica_count): # Current_server is the server on which brick path will be created current_server = list(servers_bricks_dict.keys())[dict_index] current_server_unused_bricks_list = ( list(servers_bricks_dict.values())[dict_index]) if current_server_unused_bricks_list: brick_path = ("%s:%s/%s_brick%s" % (current_server, current_server_unused_bricks_list[0], self.volname_new, num)) bricks_list.append(brick_path) # Remove the added brick from the list list(servers_bricks_dict.values())[dict_index].pop(0) if dict_index < len(servers_bricks_dict) - 1: dict_index = dict_index + 1 else: dict_index = 0 # Create volume 'volume_new' ret, _, _ = volume_create(mnode=self.mnode, volname=self.volname_new, bricks_list=bricks_list, force=False, **kwargs) self.assertEqual(ret, 0, "Unable to create volume %s" % self.volname_new) g.log.info("Successfully created volume %s", self.volname_new) ret, _, _ = volume_start(self.mnode, self.volname_new) self.assertEqual(ret, 0, "Unable to start volume %s" % self.volname_new) # Wait for volume processes to be online g.log.info("Wait for volume %s processes to be online", self.volname_new) ret = wait_for_volume_process_to_be_online(self.mnode, self.volname_new) self.assertTrue(ret, "Wait timeout: Processes of volume %s are " "not online." % self.volname_new) g.log.info("Volume processes of volume %s are now online", self.volname_new) # Export volume as nfs-ganesha export ret, _, _ = export_nfs_ganesha_volume(self.mnode, self.volname_new) self.assertEqual(ret, 0, "Failed to set ganesha.enable 'on' on " "volume %s" % self.volname_new) g.log.info("Successful in setting ganesha.enable to 'on' on " "volume %s", self.volname_new) # Verify volume export ret = wait_for_nfs_ganesha_volume_to_get_exported(self.mnode, self.volname_new) self.assertTrue(ret, "Failed to export volume %s as nfs-ganesha " "export" % self.volname_new) g.log.info("Successfully exported volume %s", self.volname_new) # Mount the new volume for mount_obj in self.mounts_new: ret = mount_obj.mount() self.assertTrue(ret, ("Failed to mount %s on client" " %s" % (mount_obj.volname, mount_obj.client_system))) g.log.info("Successfully mounted %s on client %s", mount_obj.volname, mount_obj.client_system) # Verify mounts for mount_obj in self.mounts_new: ret = mount_obj.is_mounted() self.assertTrue(ret, ("Volume %s is not mounted on client" " %s" % (mount_obj.volname, mount_obj.client_system))) g.log.info("Verified: Volume %s is mounted on client %s", mount_obj.volname, mount_obj.client_system) g.log.info("Export and mount of new volume %s is success.", self.volname_new) # Validate IO g.log.info("Validating IO's") ret = validate_io_procs(all_mounts_procs, self.mounts) self.assertTrue(ret, "IO failed on some of the clients") g.log.info("Successfully validated all IO") # Get stat of all the files/dirs created. g.log.info("Get stat of all the files/dirs created.") ret = get_mounts_stat(self.mounts) self.assertTrue(ret, "Stat failed on some of the clients") g.log.info("Successfully got stat of all files/dirs created") def tearDown(self): """ Unmount and cleanup the volumes """ # Unmount volumes all_mounts = self.mounts + self.mounts_new for mount_obj in all_mounts: ret = mount_obj.unmount() if ret: g.log.info("Successfully unmounted volume %s from %s", mount_obj.volname, mount_obj.client_system) else: g.log.error("Failed to unmount volume %s from %s", mount_obj.volname, mount_obj.client_system) # Cleanup volumes for volume in self.volname, self.volname_new: ret = cleanup_volume(self.mnode, volume) if not ret: raise ExecutionError("Failed to cleanup volume %s", volume) g.log.info("Volume %s deleted successfully", volume)