# Copyright (C) 2018 Red Hat, Inc. http://www.redhat.com> # # 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 ( rebalance_start, wait_for_fix_layout_to_complete) from glustolibs.gluster.volume_libs import ( log_volume_info_and_status, form_bricks_list_to_remove_brick) from glustolibs.gluster.dht_test_utils import is_layout_complete @runs_on([['distributed', 'distributed-replicated', 'distributed-dispersed'], ['glusterfs']]) class RebalanceValidation(GlusterBaseClass): def setUp(self): # Calling GlusterBaseClass setUp GlusterBaseClass.setUp.im_func(self) if self.volume_type == "distributed-replicated": self.volume_configs = [] # Redefine distributed-replicated volume self.volume['voltype'] = { 'type': 'distributed-replicated', 'replica_count': 3, 'dist_count': 4, 'transport': 'tcp'} if self.volume_type == "distributed-dispersed": self.volume_configs = [] # Redefine distributed-dispersed volume self.volume['voltype'] = { 'type': 'distributed-dispersed', 'dist_count': 3, 'disperse_count': 6, 'redundancy_count': 2, 'transport': 'tcp' } # 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_num=1) if not self.remove_brick_list: g.log.error("Volume %s: Failed to form bricks list " "for volume shrink", self.volname) raise ExecutionError("Volume %s: Failed to form bricks list " "for volume shrink" % self.volname) g.log.info("Volume %s: Formed bricks list for volume shrink", self.volname) def test_induce_holes_thenfixlayout(self): # pylint: disable=too-many-statements m_point = self.mounts[0].mountpoint command = 'mkdir -p ' + m_point + '/testdir' ret, _, _ = g.run(self.clients[0], command) self.assertEqual(ret, 0, "mkdir failed") g.log.info("mkdir is successful") # 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 shrinking the volume. g.log.info("Logging volume info and Status before shrinking volume") log_volume_info_and_status(self.mnode, self.volname) # Shrinking volume by removing bricks g.log.info("Start removing bricks from volume") ret, _, _ = remove_brick(self.mnode, self.volname, self.remove_brick_list, "force") self.assertFalse(ret, "Remove-brick with force: FAIL") g.log.info("Remove-brick with force: PASS") # Check the layout ret = is_layout_complete(self.mnode, self.volname, dirpath='/testdir') self.assertFalse(ret, "Volume %s: Layout is complete") g.log.info("Volume %s: Layout has some holes") # Start Rebalance fix-layout g.log.info("Volume %s: Start fix-layout", self.volname) ret, _, _ = rebalance_start(self.mnode, self.volname, fix_layout=True) self.assertEqual(ret, 0, ("Volume %s: fix-layout start failed" "%s", self.volname)) g.log.info("Volume %s: fix-layout start success", self.volname) # Wait for fix-layout to complete g.log.info("Waiting for fix-layout to complete") ret = wait_for_fix_layout_to_complete(self.mnode, self.volname) self.assertTrue(ret, ("Volume %s: Fix-layout is either failed or " "in-progress", self.volname)) g.log.info("Volume %s: Fix-layout completed successfully", self.volname) # 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") def tearDown(self): # Cleaning the removed bricks for brick in self.remove_brick_list: brick_node, brick_path = brick.split(":") cmd = "rm -rf " + brick_path ret, _, _ = g.run(brick_node, cmd) if ret: raise ExecutionError("Failed to delete removed brick dir " "%s:%s" % (brick_node, brick_path)) # 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")