# Copyright (C) 2017-2020 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.brick_ops import remove_brick from glustolibs.gluster.constants import \ TEST_LAYOUT_IS_COMPLETE as LAYOUT_IS_COMPLETE from glustolibs.gluster.constants import FILETYPE_DIRS from glustolibs.gluster.dht_test_utils import validate_files_in_dir from glustolibs.gluster.exceptions import ExecutionError from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on from glustolibs.gluster.rebalance_ops import ( get_rebalance_status, rebalance_start, rebalance_stop ) from glustolibs.gluster.volume_libs import ( expand_volume, form_bricks_list_to_remove_brick, log_volume_info_and_status, verify_all_process_of_volume_are_online, wait_for_volume_process_to_be_online ) from glustolibs.io.utils import ( list_all_files_and_dirs_mounts, wait_for_io_to_complete ) from glustolibs.misc.misc_libs import upload_scripts @runs_on([['distributed', 'distributed-replicated', 'dispersed', 'distributed-dispersed', 'replicated'], ['glusterfs']]) class RebalanceValidation(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) def setUp(self): # Calling GlusterBaseClass setUp self.get_super_method(self, 'setUp')() # 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") # Form bricks list for Shrinking volume self.remove_brick_list = form_bricks_list_to_remove_brick( self.mnode, self.volname, subvol_name=1) if not self.remove_brick_list: g.log.error("Volume %s: Failed to form bricks list for shrink", self.volname) raise ExecutionError("Volume %s: Failed to form bricks list for" " shrink" % self.volname) g.log.info("Volume %s: Formed bricks list for volume shrink", (self.remove_brick_list, self.volname)) # Start IO on mounts g.log.info("Starting IO on all mounts...") self.all_mounts_procs = [] for index, mount_obj in enumerate(self.mounts, start=1): 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 5 " "--max-num-of-dirs 5 " "--num-of-files 10 %s" % ( self.script_upload_path, index + 10, mount_obj.mountpoint)) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) self.all_mounts_procs.append(proc) # Wait for IO to 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") # List all files and dirs created g.log.info("List all files and directories:") ret = list_all_files_and_dirs_mounts(self.mounts) if not ret: raise ExecutionError("Failed to list all files and dirs") g.log.info("Listing all files and directories is successful") def tearDown(self): status_info = get_rebalance_status(self.mnode, self.volname) status = status_info['aggregate']['statusStr'] if 'in progress' in status: # Stop rebalance on the volume g.log.info("Stop Rebalance on volume %s", self.volname) ret, _, _ = rebalance_stop(self.mnode, self.volname) if ret != 0: raise ExecutionError("Volume %s: Rebalance stop failed" % self.volname) g.log.info("Volume %s: Rebalance stop success", self.volname) # Unmount Volume and Cleanup 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 Unmount Volume and Cleanup Volume") g.log.info("Successful in Unmount Volume and Cleanup Volume") # Calling GlusterBaseClass tearDown self.get_super_method(self, 'tearDown')() def test_remove_brick_while_rebalance_is_running(self): # DHT Layout validation g.log.debug("Verifying hash layout values %s:%s", self.clients[0], self.mounts[0].mountpoint) ret = validate_files_in_dir(self.clients[0], self.mounts[0].mountpoint, test_type=LAYOUT_IS_COMPLETE, file_type=FILETYPE_DIRS) self.assertTrue(ret, "LAYOUT_IS_COMPLETE: FAILED") g.log.info("LAYOUT_IS_COMPLETE: PASS") # Log Volume Info and Status before expanding the volume. g.log.info("Logging volume info and Status before expanding volume") log_volume_info_and_status(self.mnode, self.volname) # Expanding volume by adding bricks to the volume g.log.info("Start adding bricks to volume") ret = expand_volume(self.mnode, self.volname, self.servers, self.all_servers_info) self.assertTrue(ret, ("Volume %s: Expand failed", self.volname)) g.log.info("Volume %s: Expand successful", self.volname) # Wait for gluster processes to come online g.log.info("Wait for gluster processes to come online") ret = wait_for_volume_process_to_be_online(self.mnode, self.volname) self.assertTrue(ret, ("Volume %s: one or more volume process are " "not up", self.volname)) g.log.info("All volume %s processes are online", self.volname) # Log Volume Info and Status after expanding the volume g.log.info("Logging volume info and Status after expanding volume") log_volume_info_and_status(self.mnode, self.volname) # Verify volume's all process are online g.log.info("Volume %s: Verifying that all process are online", self.volname) 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) # Start Rebalance g.log.info("Starting rebalance on the volume") ret, _, _ = rebalance_start(self.mnode, self.volname) self.assertEqual(ret, 0, ("Volume %s: Failed to start rebalance", self.volname)) g.log.info("Volume %s: Rebalance started ", self.volname) # Check if rebalance is running status_info = get_rebalance_status(self.mnode, self.volname) status = status_info['aggregate']['statusStr'] if 'in progress' in status: # Shrinking volume by removing bricks g.log.info("Start removing bricks from volume") _, _, err = remove_brick(self.mnode, self.volname, self.remove_brick_list, "start") self.assertIn("Rebalance is in progress", err, "Successfully " "removed bricks while volume rebalance is " "in-progress") g.log.info("Failed to start remove-brick as rebalance is " "in-progress") else: g.log.error("Rebalance process is not running") raise ExecutionError("Rebalance process is not running")