# Copyright (C) 2017-2018 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.misc.misc_libs import upload_scripts from glustolibs.io.utils import validate_io_procs from glustolibs.gluster.volume_libs import ( log_volume_info_and_status, shrink_volume, wait_for_volume_process_to_be_online) @runs_on([['distributed-dispersed'], ['glusterfs']]) class DispersedWithAddBrick(GlusterBaseClass): """ Test case validates remove-brick and rebalance in a dispersed volume """ @classmethod def setUpClass(cls): """ Setup volume and mount volume Calling GlusterBaseClass setUpClass """ GlusterBaseClass.setUpClass.im_func(cls) # Setup Volume and Mount Volume g.log.info("Starting to Setup and Mount Volume %s", cls.volname) ret = cls.setup_volume_and_mount_volume(mounts=cls.mounts) if not ret: raise ExecutionError("Failed to Setup_Volume " "and Mount_Volume %s" % cls.volname) g.log.info("Successful in Setup and Mount Volume %s", cls.volname) # 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 test_disperse_removebrick(self): # pylint: disable=too-many-branches,too-many-statements,too-many-locals """ - Write IO's - Start remove brick - Validate IOs - Start rebalance - Wait for rebalance to complete - Start IO's and Vaildate IO's """ # Write IO 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 = ("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 # Start remove-brick (subvolume-decrease) g.log.info("Start removing bricks from volume") ret = shrink_volume(self.mnode, self.volname) self.assertTrue(ret, ("Remove brick operation failed on " "%s", self.volname)) g.log.info("Remove brick operation is successful on " "volume %s", self.volname) # Log Volume Info and Status after shrinking the volume g.log.info("Logging volume info and Status after shrinking volume") ret = log_volume_info_and_status(self.mnode, self.volname) self.assertTrue(ret, ("Logging volume info and status failed on " "volume %s", self.volname)) g.log.info("Successful in logging volume info and status of volume %s", self.volname) # Wait for volume processes to be online g.log.info("Wait for volume processes to be online") ret = wait_for_volume_process_to_be_online(self.mnode, self.volname) self.assertTrue(ret, ("All process for volume %s are not" "online", self.volname)) g.log.info("All volume %s processes are now online", self.volname) # Validating IO's and waiting to complete 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's") # Start IO on all mounts after rebalance completes all_mounts_procs = [] count = 21 for mount_obj in self.mounts: g.log.info("Starting IO on %s:%s", mount_obj.client_system, mount_obj.mountpoint) cmd = ("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 # 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's") def tearDown(self): """ Clean up the volume and umount volume from client """ # Unmount volume from client # Test needs to continue if unmount fail.Not asserting here. ret = self.unmount_volume(self.mounts) if ret: g.log.info("Successfully unmounted all the volumes") else: g.log.error(ret, "Failed to unmount volumes") # cleanup-volume ret = self.cleanup_volume() if not ret: raise ExecutionError("Failed to Cleanup Volume") g.log.info("Cleanup volume %s Completed Successfully", self.volname)