# Copyright (C) 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.volume_ops import (volume_create, volume_start, get_volume_list) from glustolibs.gluster.brick_libs import get_all_bricks from glustolibs.gluster.volume_libs import (cleanup_volume) from glustolibs.gluster.peer_ops import (peer_probe, peer_detach, peer_probe_servers, nodes_from_pool_list) from glustolibs.gluster.lib_utils import form_bricks_list from glustolibs.gluster.brick_ops import remove_brick from glustolibs.gluster.exceptions import ExecutionError from glustolibs.gluster.mount_ops import mount_volume, umount_volume from glustolibs.io.utils import validate_io_procs from glustolibs.gluster.gluster_init import restart_glusterd @runs_on([['distributed-replicated'], ['glusterfs']]) class TestRemoveBrickAfterRestartGlusterd(GlusterBaseClass): def setUp(self): # Performing peer detach for server in self.servers[1:]: ret, _, _ = peer_detach(self.mnode, server) if ret != 0: raise ExecutionError("Peer detach failed") g.log.info("Peer detach SUCCESSFUL.") GlusterBaseClass.setUp.im_func(self) def tearDown(self): # Cleanup and umount volume g.log.info("Starting to Unmount Volume %s", self.volname) ret = umount_volume(self.mounts[0].client_system, self.mounts[0].mountpoint, mtype=self.mount_type) self.assertTrue(ret, ("Failed to Unmount Volume %s" % self.volname)) g.log.info("Successfully Unmounted Volume %s", self.volname) # Clean up all volumes and peer probe to form cluster vol_list = get_volume_list(self.mnode) if vol_list is not None: for volume in vol_list: ret = cleanup_volume(self.mnode, volume) if not ret: raise ExecutionError("Failed to cleanup volume") g.log.info("Volume deleted successfully : %s", volume) g.log.info("Successful in umounting the volume and Cleanup") # Peer probe detached servers pool = nodes_from_pool_list(self.mnode) for node in pool: peer_detach(self.mnode, node) ret = peer_probe_servers(self.mnode, self.servers) if not ret: raise ExecutionError("Failed to probe detached " "servers %s" % self.servers) g.log.info("Peer probe success for detached " "servers %s", self.servers) GlusterBaseClass.tearDown.im_func(self) def test_remove_brick(self): """ In this test case: 1. Trusted storage Pool of 4 nodes 2. Create a distributed-replicated volumes with 4 bricks 3. Start the volume 4. Fuse mount the gluster volume on out of trusted nodes 5. Create some data file 6. Start remove-brick operation for one replica pair 7. Restart glusterd on all nodes 8. Try to commit the remove-brick operation while rebalance is in progress, it should fail """ # pylint: disable=too-many-statements my_servers = self.servers[0:4] my_server_info = {} for server in self.servers[0:4]: my_server_info[server] = self.all_servers_info[server] for index in range(1, 4): ret, _, _ = peer_probe(self.servers[0], self.servers[index]) self.assertEqual(ret, 0, ("peer probe from %s to %s is failed", self.servers[0], self.servers[index])) g.log.info("peer probe is success from %s to " "%s", self.servers[0], self.servers[index]) self.volname = "testvol" bricks_list = form_bricks_list(self.mnode, self.volname, 4, my_servers, my_server_info) g.log.info("Creating a volume %s ", self.volname) kwargs = {} kwargs['replica_count'] = 2 ret = volume_create(self.mnode, self.volname, bricks_list, force=False, **kwargs) self.assertEqual(ret[0], 0, ("Unable" "to create volume %s" % self.volname)) g.log.info("Volume created successfully %s", self.volname) ret, _, _ = volume_start(self.mnode, self.volname, False) self.assertEqual(ret, 0, ("Failed to start the " "volume %s", self.volname)) g.log.info("Get all the bricks of the volume") bricks_list = get_all_bricks(self.mnode, self.volname) self.assertIsNotNone(bricks_list, "Failed to get the brick list") g.log.info("Successfully got the list of bricks of volume") # Mounting a volume ret, _, _ = mount_volume(self.volname, mtype=self.mount_type, mpoint=self.mounts[0].mountpoint, mserver=self.mnode, mclient=self.mounts[0].client_system) self.assertEqual(ret, 0, ("Volume %s is not mounted") % self.volname) g.log.info("Volume mounted successfully : %s", self.volname) self.all_mounts_procs = [] # Creating files command = ("cd %s/ ; " "for i in `seq 1 10` ; " "do mkdir l1_dir.$i ; " "for j in `seq 1 5` ; " "do mkdir l1_dir.$i/l2_dir.$j ; " "for k in `seq 1 10` ; " "do dd if=/dev/urandom of=l1_dir.$i/l2_dir.$j/test.$k " "bs=128k count=$k ; " "done ; " "done ; " "done ; " % (self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, command, user=self.mounts[0].user) self.all_mounts_procs.append(proc) self.io_validation_complete = False # Validate IO ret = validate_io_procs(self.all_mounts_procs, self.mounts) self.io_validation_complete = True self.assertTrue(ret, "IO failed on some of the clients") remove_brick_list = bricks_list[2:4] ret, _, _ = remove_brick(self.mnode, self.volname, remove_brick_list, 'start') self.assertEqual(ret, 0, "Failed to start remove brick operation") g.log.info("Remove bricks operation started successfully") g.log.info("Restart glusterd on servers %s", self.servers) ret = restart_glusterd(self.servers) self.assertTrue(ret, ("Failed to restart glusterd on servers %s", self.servers)) g.log.info("Successfully restarted glusterd on servers %s", self.servers) ret, _, _ = remove_brick(self.mnode, self.volname, remove_brick_list, 'commit') self.assertNotEqual(ret, 0, "Remove brick commit ops should be fail") g.log.info("Remove bricks commit operation failure is expected")