New quorum behavior fixes

Change-Id: I364054c35f623893700798bedef965fe05f6aabf
Signed-off-by: Vitalii Koriakov <vkoriako@redhat.com>

1 files changed, 651 insertions, 0 deletions

diff --git a/tests/functional/afr/test_client_side_quorum_with_fixed_for_cross3.py b/tests/functional/afr/test_client_side_quorum_with_fixed_for_cross3.py
new file mode 100755
index 000000000..3eea4894d
--- /dev/null
+++ b/tests/functional/afr/test_client_side_quorum_with_fixed_for_cross3.py
@@ -0,0 +1,651 @@
+#  Copyright (C) 2016-2019  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.
+
+""" Description:
+        Test Cases in this module tests the client side quorum.
+"""
+
+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 (
+    set_volume_options, get_subvols)
+from glustolibs.misc.misc_libs import upload_scripts
+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
+        GlusterBaseClass.setUpClass.im_func(cls)
+
+        # Upload io scripts for running IO on mounts
+        g.log.info("Upload io scripts to clients %s for running IO on "
+                   "mounts", cls.clients)
+        script_abs_path = "/usr/share/glustolibs/io/scripts/file_dir_ops.py"
+        cls.script_upload_path = script_abs_path
+        ret = upload_scripts(cls.clients, [script_abs_path])
+        if not ret:
+            raise ExecutionError("Failed to upload IO scripts to clients")
+
+    def setUp(self):
+        """
+        setUp method for every test
+        """
+        # calling GlusterBaseClass setUp
+        GlusterBaseClass.setUp.im_func(self)
+
+        # 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
+        """
+        # 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
+        GlusterBaseClass.tearDown.im_func(self)
+
+    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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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 = ("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)