diff options
Diffstat (limited to 'tests/functional/disperse/test_ec_truncate_file_with_brick_down.py')
| -rwxr-xr-x | tests/functional/disperse/test_ec_truncate_file_with_brick_down.py | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/tests/functional/disperse/test_ec_truncate_file_with_brick_down.py b/tests/functional/disperse/test_ec_truncate_file_with_brick_down.py new file mode 100755 index 000000000..ac9db90fa --- /dev/null +++ b/tests/functional/disperse/test_ec_truncate_file_with_brick_down.py @@ -0,0 +1,145 @@ +# Copyright (C) 2020 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 random import sample +import time + +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.gluster.volume_ops import volume_start +from glustolibs.gluster.volume_libs import get_subvols +from glustolibs.gluster.lib_utils import is_core_file_created +from glustolibs.gluster.brick_libs import (bring_bricks_offline, + are_bricks_offline, + are_bricks_online) +from glustolibs.gluster.heal_libs import monitor_heal_completion +from glustolibs.misc.misc_libs import reboot_nodes_and_wait_to_come_online + + +@runs_on([['dispersed', 'distributed-dispersed'], + ['glusterfs', 'nfs']]) +class TestEcTruncateFileWithBrickDown(GlusterBaseClass): + + def setUp(self): + # calling GlusterBaseClass setUp + self.get_super_method(self, 'setUp')() + + # Setup volume and mount it on three clients. + if not self.setup_volume_and_mount_volume([self.mounts[0]]): + raise ExecutionError("Failed to Setup_Volume and Mount_Volume") + + def tearDown(self): + # Calling GlusterBaseClass tearDown + self.get_super_method(self, 'tearDown')() + + # Unmount and cleanup the volume + if not self.unmount_volume_and_cleanup_volume([self.mounts[0]]): + raise ExecutionError("Unable to unmount and cleanup volume") + + def test_ec_truncate_file_with_brick_down(self): + """ + Test steps: + 1. Create a volume, start and mount it on a client + 2. Bring down redundant bricks in the subvol + 3. Create a file on the volume using "touch" + 4. Truncate the file using "O_TRUNC" + 5. Bring the brick online + 6. Write data on the file and wait for heal completion + 7. Check for crashes and coredumps + """ + # pylint: disable=unsubscriptable-object + for restart_type in ("volume_start", "node_reboot"): + # Time stamp from mnode for checking cores at the end of test + ret, test_timestamp, _ = g.run(self.mnode, "date +%s") + self.assertEqual(ret, 0, "date command failed") + test_timestamp = test_timestamp.strip() + + # Create a file using touch + file_name = self.mounts[0].mountpoint + "/test_1" + ret, _, err = g.run(self.mounts[0].client_system, "touch {}". + format(file_name)) + self.assertEqual(ret, 0, "File creation failed") + g.log.info("File Created successfully") + + # List two bricks in each subvol + subvols = get_subvols(self.mnode, self.volname)['volume_subvols'] + bricks_to_bring_offline = [] + for subvol in subvols: + self.assertTrue(subvol, "List is empty") + bricks_to_bring_offline.extend(sample(subvol, 2)) + + # Bring two bricks of each subvol offline + ret = bring_bricks_offline(self.volname, bricks_to_bring_offline) + self.assertTrue(ret, "Bricks are still online") + + # Validating the bricks are offline or not + ret = are_bricks_offline(self.mnode, self.volname, + bricks_to_bring_offline) + self.assertTrue(ret, "Few of the bricks are still online in" + " {} in".format(bricks_to_bring_offline)) + + # Truncate the file + cmd = ( + 'python -c "import os, sys; fd = os.open(\'{}\', os.O_TRUNC )' + '; os.close( fd )"').format(file_name) + ret, _, err = g.run(self.mounts[0].client_system, cmd) + self.assertEqual(ret, 0, err) + g.log.info("File truncated successfully") + + # Bring back the bricks online + if restart_type == "volume_start": + # Bring back bricks online by volume start + ret, _, err = volume_start(self.mnode, self.volname, + force=True) + self.assertEqual(ret, 0, err) + g.log.info("All bricks are online") + elif restart_type == "node_reboot": + # Bring back the bricks online by node restart + for brick in bricks_to_bring_offline: + node_to_reboot = brick.split(":")[0] + ret = reboot_nodes_and_wait_to_come_online(node_to_reboot) + self.assertTrue(ret, "Reboot Failed on node: " + "{}".format(node_to_reboot)) + g.log.info("Node: %s rebooted successfully", + node_to_reboot) + time.sleep(60) + + # Check whether bricks are online or not + ret = are_bricks_online(self.mnode, self.volname, + bricks_to_bring_offline) + self.assertTrue(ret, "Bricks {} are still offline". + format(bricks_to_bring_offline)) + + # write data to the file + cmd = ('python -c "import os, sys;fd = os.open(\'{}\', ' + 'os.O_RDWR) ;' + 'os.write(fd, \'This is test after truncate\'.encode());' + ' os.close(fd)"').format(file_name) + + ret, _, err = g.run(self.mounts[0].client_system, cmd) + self.assertEqual(ret, 0, err) + g.log.info("Data written successfully on to the file") + + # Monitor heal completion + ret = monitor_heal_completion(self.mnode, self.volname) + self.assertTrue(ret, "Heal pending for file {}".format(file_name)) + + # check for any crashes on servers and client + for nodes in (self.servers, [self.clients[0]]): + ret = is_core_file_created(nodes, test_timestamp) + self.assertTrue(ret, + "Cores found on the {} nodes".format(nodes)) |