Moved test_self_heal_symbolic_links from afr to arbiter folder

Change-Id: I6a95e82977f4ac6092716c064597931768023710
Signed-off-by: Vitalii Koriakov <vkoriako@redhat.com>

1 files changed, 342 insertions, 0 deletions

diff --git a/tests/functional/arbiter/test_self_heal_symbolic_links.py b/tests/functional/arbiter/test_self_heal_symbolic_links.py
new file mode 100644
index 000000000..46b1889d3
--- /dev/null
+++ b/tests/functional/arbiter/test_self_heal_symbolic_links.py
@@ -0,0 +1,342 @@
+#  Copyright (C) 2015-2018  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.gluster_base_class import (GlusterBaseClass, runs_on)
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.volume_ops import set_volume_options
+from glustolibs.gluster.volume_libs import (
+    verify_all_process_of_volume_are_online,
+    wait_for_volume_process_to_be_online)
+from glustolibs.gluster.brick_libs import (select_bricks_to_bring_offline,
+                                           bring_bricks_offline,
+                                           bring_bricks_online,
+                                           are_bricks_offline)
+from glustolibs.gluster.heal_libs import (monitor_heal_completion,
+                                          is_heal_complete,
+                                          is_volume_in_split_brain,
+                                          is_shd_daemonized)
+from glustolibs.gluster.heal_ops import trigger_heal
+from glustolibs.misc.misc_libs import upload_scripts
+from glustolibs.io.utils import (collect_mounts_arequal, validate_io_procs)
+
+
+@runs_on([['replicated', 'distributed-replicated'],
+          ['glusterfs', 'nfs']])
+class TestSelfHeal(GlusterBaseClass):
+    """
+    Description:
+        Arbiter Test cases related to
+        healing in default configuration of the volume
+    """
+
+    @classmethod
+    def setUpClass(cls):
+        # Calling GlusterBaseClass setUpClass
+        GlusterBaseClass.setUpClass.im_func(cls)
+
+        # Overriding the volume type to specifically test the volume type
+        # Change from distributed-replicated to arbiter
+        if cls.volume_type == "distributed-replicated":
+            cls.volume['voltype'] = {
+                'type': 'distributed-replicated',
+                'dist_count': 2,
+                'replica_count': 3,
+                'arbiter_count': 1,
+                'transport': 'tcp'}
+
+        # 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_local_path = ("/usr/share/glustolibs/io/scripts/"
+                             "file_dir_ops.py")
+        cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
+                                  "file_dir_ops.py")
+        ret = upload_scripts(cls.clients, [script_local_path])
+        if not ret:
+            raise ExecutionError("Failed to upload IO scripts to clients %s"
+                                 % cls.clients)
+        g.log.info("Successfully uploaded IO scripts to clients %s",
+                   cls.clients)
+
+    def setUp(self):
+        # Calling GlusterBaseClass setUp
+        GlusterBaseClass.setUp.im_func(self)
+
+        # 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")
+
+    def tearDown(self):
+        """
+        Cleanup and umount volume
+        """
+
+        # Cleanup and umount 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 umount the vol & cleanup Volume")
+        g.log.info("Successful in umounting the volume and Cleanup")
+
+        # Calling GlusterBaseClass teardown
+        GlusterBaseClass.tearDown.im_func(self)
+
+    def test_self_heal_symbolic_links(self):
+        """
+        Test Self-Heal of Symbolic Links (heal command)
+
+        Description:
+        - set the volume option
+        "metadata-self-heal": "off"
+        "entry-self-heal": "off"
+        "data-self-heal": "off"
+        "data-self-heal-algorithm": "diff"
+        "self-heal-daemon": "off"
+        - create IO
+        - calculate arequal
+        - bring down all bricks processes from selected set
+        - calculate arequals and compare with arequal
+        before bringing bricks offline
+        - modify the data and verify whether the links are properly created
+        - calculate arequal before getting bricks online
+        - bring bricks online
+        - set the volume option
+        "self-heal-daemon": "on"
+        - check daemons and start healing
+        - check is heal is complited
+        - check for split-brain
+        - calculate arequal after getting bricks online and compare with
+        arequal before getting bricks online
+        """
+        # pylint: disable=too-many-locals,too-many-statements
+        # Setting options
+        g.log.info('Setting options...')
+        options = {"metadata-self-heal": "off",
+                   "entry-self-heal": "off",
+                   "data-self-heal": "off",
+                   "self-heal-daemon": "off"}
+        ret = set_volume_options(self.mnode, self.volname, options)
+        self.assertTrue(ret, 'Failed to set options')
+        g.log.info("Options "
+                   "'metadata-self-heal', "
+                   "'entry-self-heal', "
+                   "'data-self-heal', "
+                   "'self-heal-daemon' "
+                   "are set to 'off' successfully")
+
+        # Creating files on client side
+        all_mounts_procs = []
+        test_sym_link_self_heal_folder = 'test_sym_link_self_heal'
+        g.log.info("Generating data for %s:%s",
+                   self.mounts[0].client_system, self.mounts[0].mountpoint)
+        # Creating files
+        command = ("cd %s/ ; "
+                   "mkdir %s ; "
+                   "cd %s/ ;"
+                   "for i in `seq 1 5` ; "
+                   "do mkdir dir.$i ; "
+                   "for j in `seq 1 10` ; "
+                   "do dd if=/dev/urandom of=dir.$i/file.$j "
+                   "bs=1k count=$j ; "
+                   "done ; "
+                   "done ;"
+                   % (self.mounts[0].mountpoint,
+                      test_sym_link_self_heal_folder,
+                      test_sym_link_self_heal_folder))
+
+        proc = g.run_async(self.mounts[0].client_system, command,
+                           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 some of the clients"
+        )
+
+        # Get arequal before getting bricks offline
+        g.log.info('Getting arequal before getting bricks offline...')
+        ret, result_before_offline = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Getting arequal before getting bricks offline '
+                   'is successful')
+
+        # Select bricks to bring offline
+        bricks_to_bring_offline_dict = (select_bricks_to_bring_offline(
+            self.mnode, self.volname))
+        bricks_to_bring_offline = filter(None, (
+            bricks_to_bring_offline_dict['hot_tier_bricks'] +
+            bricks_to_bring_offline_dict['cold_tier_bricks'] +
+            bricks_to_bring_offline_dict['volume_bricks']))
+
+        # Bring brick offline
+        g.log.info('Bringing bricks %s offline...', bricks_to_bring_offline)
+        ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
+        self.assertTrue(ret, 'Failed to bring bricks %s offline' %
+                        bricks_to_bring_offline)
+
+        ret = are_bricks_offline(self.mnode, self.volname,
+                                 bricks_to_bring_offline)
+        self.assertTrue(ret, 'Bricks %s are not offline'
+                        % bricks_to_bring_offline)
+        g.log.info('Bringing bricks %s offline is successful',
+                   bricks_to_bring_offline)
+
+        # Get arequal after getting bricks offline
+        g.log.info('Getting arequal after getting bricks offline...')
+        ret, result_after_offline = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Getting arequal after getting bricks offline '
+                   'is successful')
+
+        # Checking arequals before bringing bricks offline
+        # and after bringing bricks offline
+        self.assertItemsEqual(result_before_offline, result_after_offline,
+                              'Checksums before and '
+                              'after bringing bricks online are not equal')
+        g.log.info('Checksums before and after bringing bricks online '
+                   'are equal')
+
+        # Modify the data
+        g.log.info("Modifying data for %s:%s",
+                   self.mounts[0].client_system, self.mounts[0].mountpoint)
+        # Create symlinks
+        g.log.info('Creating symlinks...')
+        command = ("cd %s/%s/ ; "
+                   "for i in `seq 1 5` ; "
+                   "do ln -s dir.$i sym_link_dir.$i ; "
+                   "done ;"
+                   % (self.mounts[0].mountpoint,
+                      test_sym_link_self_heal_folder))
+        ret, _, _ = g.run(self.mounts[0].client_system, command)
+        self.assertEqual(ret, 0, 'Failed to modify the data for %s...'
+                         % self.mounts[0].mountpoint)
+        g.log.info('Modifying the data for %s is successful',
+                   self.mounts[0].mountpoint)
+
+        # Verify whether the links are properly created
+        # Get symlink list
+        command = ("cd %s/%s/ ; "
+                   "ls |grep 'sym'"
+                   % (self.mounts[0].mountpoint,
+                      test_sym_link_self_heal_folder))
+        _, out, _ = g.run(self.mounts[0].client_system, command)
+        symlink_list = out.strip().split('\n')
+
+        # Get folder list
+        command = ("cd %s/%s/ ; "
+                   "ls |grep -v 'sym'"
+                   % (self.mounts[0].mountpoint,
+                      test_sym_link_self_heal_folder))
+        _, out, _ = g.run(self.mounts[0].client_system, command)
+        folder_list = out.strip().split('\n')
+
+        # Compare symlinks and folders
+        for symlink in symlink_list:
+            symlink_index = symlink_list.index(symlink)
+            command = ("cd %s/%s/ ; "
+                       "readlink %s"
+                       % (self.mounts[0].mountpoint,
+                          test_sym_link_self_heal_folder,
+                          symlink))
+            _, out, _ = g.run(self.mounts[0].client_system, command)
+            symlink_to_folder = out.strip()
+            self.assertEqual(symlink_to_folder, folder_list[symlink_index],
+                             'Links are not properly created')
+            g.log.info('Links for %s are properly created',
+                       self.mounts[0].mountpoint)
+
+        # Get arequal before getting bricks online
+        g.log.info('Getting arequal before getting bricks online...')
+        ret, result_before_online = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Getting arequal before getting bricks online '
+                   'is successful')
+
+        # Bring brick online
+        g.log.info('Bringing bricks %s online', bricks_to_bring_offline)
+        ret = bring_bricks_online(self.mnode, self.volname,
+                                  bricks_to_bring_offline)
+        self.assertTrue(ret, 'Failed to bring bricks %s online' %
+                        bricks_to_bring_offline)
+        g.log.info('Bringing bricks %s online is successful',
+                   bricks_to_bring_offline)
+
+        # Setting options
+        g.log.info('Setting options...')
+        options = {"self-heal-daemon": "on"}
+        ret = set_volume_options(self.mnode, self.volname, options)
+        self.assertTrue(ret, 'Failed to set options %s' % options)
+        g.log.info("Option 'self-heal-daemon' is set to 'on' successfully")
+
+        # Wait for volume processes to be online
+        g.log.info("Wait for volume processes to be online")
+        ret = wait_for_volume_process_to_be_online(self.mnode, self.volname)
+        self.assertTrue(ret, ("Failed to wait for volume %s processes to "
+                              "be online", self.volname))
+        g.log.info("Successful in waiting for volume %s processes to be "
+                   "online", self.volname)
+
+        # Verify volume's all process are online
+        g.log.info("Verifying volume's all process are online")
+        ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
+        self.assertTrue(ret, ("Volume %s : All process are not online"
+                              % self.volname))
+        g.log.info("Volume %s : All process are online", self.volname)
+
+        # Wait for self-heal-daemons to be online
+        g.log.info("Waiting for self-heal-daemons to be online")
+        ret = is_shd_daemonized(self.all_servers)
+        self.assertTrue(ret, "Either No self heal daemon process found")
+        g.log.info("All self-heal-daemons are online")
+
+        # Start healing
+        ret = trigger_heal(self.mnode, self.volname)
+        self.assertTrue(ret, 'Heal is not started')
+        g.log.info('Healing is started')
+
+        # Monitor heal completion
+        ret = monitor_heal_completion(self.mnode, self.volname)
+        self.assertTrue(ret, 'Heal has not yet completed')
+
+        # Check if heal is completed
+        ret = is_heal_complete(self.mnode, self.volname)
+        self.assertTrue(ret, 'Heal is not complete')
+        g.log.info('Heal is completed successfully')
+
+        # Check for split-brain
+        ret = is_volume_in_split_brain(self.mnode, self.volname)
+        self.assertFalse(ret, 'Volume is in split-brain state')
+        g.log.info('Volume is not in split-brain state')
+
+        # Get arequal after getting bricks online
+        g.log.info('Getting arequal after getting bricks online...')
+        ret, result_after_online = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Getting arequal after getting bricks online '
+                   'is successful')
+
+        # Checking arequals before bringing bricks online
+        # and after bringing bricks online
+        self.assertItemsEqual(result_before_online, result_after_online,
+                              'Checksums before and '
+                              'after bringing bricks online are not equal')
+        g.log.info('Checksums before and after bringing bricks online '
+                   'are equal')