# Copyright (C) 2016-2020 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. """ Description: Test Cases in this module tests the client side quorum. """ from time import sleep from glusto.core import Glusto as g from glustolibs.gluster.exceptions import ExecutionError from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on from glustolibs.gluster.volume_libs import get_subvols from glustolibs.misc.misc_libs import upload_scripts from glustolibs.gluster.volume_ops import (set_volume_options, reset_volume_option) from glustolibs.gluster.brick_libs import (bring_bricks_offline, bring_bricks_online) from glustolibs.io.utils import (validate_io_procs, is_io_procs_fail_with_error) @runs_on([['replicated', 'distributed-replicated'], ['glusterfs']]) class ClientSideQuorumTestsWithSingleVolumeCross3(GlusterBaseClass): """ ClientSideQuorumTestsWithSingleVolumeCross3 contains tests which verifies the client side quorum Test Cases with cross 3 volume. """ @classmethod def setUpClass(cls): """ Upload the necessary scripts to run tests. """ # 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") def setUp(self): """ setUp method for every test """ # calling GlusterBaseClass setUp self.get_super_method(self, 'setUp')() # Setup Volume and Mount Volume g.log.info("Starting to Setup Volume %s", self.volname) ret = self.setup_volume_and_mount_volume(self.mounts) if not ret: raise ExecutionError("Failed to Setup_Volume and Mount_Volume") g.log.info("Successful in Setup Volume and Mount Volume") def tearDown(self): """ tearDown for every test """ # Reset the volume options set inside the test g.log.info("Reset the volume options") vol_options = ['cluster.self-heal-daemon', 'cluster.quorum-type', 'cluster.quorum-count'] for opt in vol_options: ret, _, _ = reset_volume_option(self.mnode, self.volname, opt) if ret != 0: raise ExecutionError("Failed to reset the volume option %s" % opt) sleep(2) g.log.info("Successfully reset the volume options") # stopping the 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_client_side_quorum_with_fixed_for_cross3(self): """ Test Script to verify the Client Side Quorum with fixed for cross 3 volume * Disable self heal daemom * set cluster.quorum-type to fixed. * start I/O( write and read )from the mount point - must succeed * Bring down brick1 * start I/0 ( write and read ) - must succeed * Bring down brick2 * start I/0 ( write and read ) - must succeed * set the cluster.quorum-count to 1 * start I/0 ( write and read ) - must succeed * set the cluster.quorum-count to 2 * start I/0 ( write and read ) - read and write will fail * bring back the brick1 online * start I/0 ( write and read ) - must succeed * Bring back brick2 online * start I/0 ( write and read ) - must succeed * set cluster.quorum-type to auto * start I/0 ( write and read ) - must succeed * Bring down brick1 and brick2 * start I/0 ( write and read ) - read and write will fail * set the cluster.quorum-count to 1 * start I/0 ( write and read ) - read and write will fail * set the cluster.quorum-count to 3 * start I/0 ( write and read ) - read and write will fail * set the quorum-type to none * start I/0 ( write and read ) - must succeed """ # pylint: disable=too-many-locals,too-many-statements,too-many-branches # Disable self heal daemon options = {"cluster.self-heal-daemon": "off"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, ("Unable to set %s for volume %s" % (options, self.volname))) g.log.info("Successfully set %s for volume %s", options, self.volname) # set cluster.quorum-type to fixed options = {"cluster.quorum-type": "fixed"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, ("Unable to set %s for volume %s" % (options, self.volname))) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/O( write ) - must succeed all_mounts_procs = [] g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name file %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on some of the clients") # get the subvolumes g.log.info("Starting to get sub-volumes for volume %s", self.volname) subvols_dict = get_subvols(self.mnode, self.volname) num_subvols = len(subvols_dict['volume_subvols']) g.log.info("Number of subvolumes in volume %s:", num_subvols) # bring down brick1 for all the subvolumes offline_brick1_from_replicasets = [] for i in range(0, num_subvols): subvol_brick_list = subvols_dict['volume_subvols'][i] g.log.info("sub-volume %s brick list : %s", i, subvol_brick_list) brick_to_bring_offline1 = subvol_brick_list[0] g.log.info("Going to bring down the brick process " "for %s", brick_to_bring_offline1) ret = bring_bricks_offline(self.volname, brick_to_bring_offline1) self.assertTrue(ret, ("Failed to bring down the bricks. Please " "check the log file for more details.")) g.log.info("Brought down the brick process " "for %s successfully", brick_to_bring_offline1) offline_brick1_from_replicasets.append(brick_to_bring_offline1) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name testfile %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # bring down brick2 for all the subvolumes offline_brick2_from_replicasets = [] for i in range(0, num_subvols): subvol_brick_list = subvols_dict['volume_subvols'][i] g.log.info("sub-volume %s brick list : %s", i, subvol_brick_list) brick_to_bring_offline2 = subvol_brick_list[1] g.log.info("Going to bring down the brick process " "for %s", brick_to_bring_offline2) ret = bring_bricks_offline(self.volname, brick_to_bring_offline2) self.assertTrue(ret, ("Failed to bring down the bricks. Please " "check the log file for more details.")) g.log.info("Brought down the brick process " "for %s successfully", brick_to_bring_offline2) offline_brick2_from_replicasets.append(brick_to_bring_offline2) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name newfile %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # set the cluster.quorum-count to 1 options = {"cluster.quorum-count": "1"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, "Unable to set %s for volume %s" % (options, self.volname)) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name filename %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # set the cluster.quorum-count to 2 options = {"cluster.quorum-count": "2"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, ("Unable to set %s for volume %s" % (options, self.volname))) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - read and write will fail g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("dd if=/dev/urandom of=%s/test_file bs=1M count=1" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected Error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while creating file") # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("cat %s/file1.txt" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while reading file") # bring back the brick1 online for all subvolumes g.log.info("bringing up the brick : %s online", offline_brick1_from_replicasets) ret = bring_bricks_online( self.mnode, self.volname, offline_brick1_from_replicasets, bring_bricks_online_methods='glusterd_restart') self.assertTrue(ret, ("Failed to brought the brick %s online" % offline_brick1_from_replicasets)) g.log.info("Successfully brought the brick %s online", offline_brick1_from_replicasets) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name newfilename %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # Bring back brick2 online g.log.info("bringing up the brick : %s online", offline_brick2_from_replicasets) ret = bring_bricks_online( self.mnode, self.volname, offline_brick2_from_replicasets, bring_bricks_online_methods='glusterd_restart') self.assertTrue(ret, ("Failed to brought the brick %s online" % offline_brick2_from_replicasets)) g.log.info("Successfully brought the brick %s online", offline_brick2_from_replicasets) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name textfile %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # set cluster.quorum-type to auto options = {"cluster.quorum-type": "auto"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, ("Unable to set %s for volume %s" % (options, self.volname))) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name newtextfile %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint) # bring down brick1 and brick2 for all the subvolumes for i in range(0, num_subvols): subvol_brick_list = subvols_dict['volume_subvols'][i] g.log.info("sub-volume %s brick list : %s", i, subvol_brick_list) bricks_to_bring_offline = subvol_brick_list[0:2] g.log.info("Going to bring down the brick process for %s", bricks_to_bring_offline) ret = bring_bricks_offline(self.volname, bricks_to_bring_offline) self.assertTrue(ret, "Failed to bring down the bricks. Please " "check the log file for more details.") g.log.info("Brought down the brick process " "for %s successfully", bricks_to_bring_offline) # start I/0 ( write and read ) - read and write will fail all_mounts_procs = [] g.log.info("Start creating file on mountpoint %s", self.mounts[0].mountpoint) cmd = ("dd if=/dev/urandom of=%s/new_test_file bs=1M count=1" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while creating files") # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] g.log.info("Starting reading file") cmd = ("cat %s/file1.txt" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while reading file") # set the cluster.quorum-count to 1 options = {"cluster.quorum-count": "1"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, "Unable to set %s for volume %s" % (options, self.volname)) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - read and write will fail g.log.info("Start creating files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("dd if=/dev/urandom of=%s/new_test_file bs=1M count=1" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while creating files") # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("cat %s/file1.txt" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while reading file") # set the cluster.quorum-count to 3 options = {"cluster.quorum-count": "3"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, "Unable to set %s for volume %s" % (options, self.volname)) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - read and write will fail g.log.info("Start creating files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("dd if=/dev/urandom of=%s/new_test_file bs=1M count=1" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while creating files") # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("cat %s/file1.txt" % self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO g.log.info("Validating whether IO failed with " "Transport endpoint is not connected") ret, _ = is_io_procs_fail_with_error(self, all_mounts_procs, self.mounts, self.mount_type) self.assertTrue(ret, ("Unexpected error and IO successful" " on not connected transport endpoint")) g.log.info("EXPECTED: Transport endpoint is not connected" " while reading file") # set the quorum-type to none options = {"cluster.quorum-type": "none"} g.log.info("setting %s for the volume %s", options, self.volname) ret = set_volume_options(self.mnode, self.volname, options) self.assertTrue(ret, "Unable to set %s for volume %s" % (options, self.volname)) g.log.info("Successfully set %s for volume %s", options, self.volname) # start I/0 ( write and read ) - must succeed g.log.info("Starting IO on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = ("/usr/bin/env python %s create_files " "-f 10 --base-file-name lastfile %s" % ( self.script_upload_path, self.mounts[0].mountpoint)) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "IO failed on mountpoint %s" % self.mounts[0].mountpoint) # read the file g.log.info("Start reading files on mountpoint %s", self.mounts[0].mountpoint) all_mounts_procs = [] cmd = "/usr/bin/env python %s read %s" % ( self.script_upload_path, self.mounts[0].mountpoint) proc = g.run_async(self.mounts[0].client_system, cmd, user=self.mounts[0].user) all_mounts_procs.append(proc) # Validate IO self.assertTrue(validate_io_procs(all_mounts_procs, self.mounts), "Reads failed on mountpoint %s" % self.mounts[0].mountpoint)