[Test] Tests gfid self heal on arbiter volume

Steps:
1.Create a volume and mount it
2.Create a directory say d1
3.Create deep directories and files in d1
4.Bring down redundant bricks
5.Delete d1
6.Create d1 and same data again
7.Bring bricks up
8.Monitor heal
9.Verify split-brain

Change-Id: I778fab6bf6d9f81fca79fe18285073e1f7ccc7e7
Signed-off-by: ubansal <ubansal@redhat.com>

1 files changed, 206 insertions, 0 deletions

diff --git a/tests/functional/arbiter/test_gfid_self_heal.py b/tests/functional/arbiter/test_gfid_self_heal.py
new file mode 100644
index 000000000..9ed4a8767
--- /dev/null
+++ b/tests/functional/arbiter/test_gfid_self_heal.py
@@ -0,0 +1,206 @@
+#  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 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_libs import (
+    verify_all_process_of_volume_are_online,
+    wait_for_volume_process_to_be_online)
+from glustolibs.gluster.brick_libs import (
+    select_volume_bricks_to_bring_offline,
+    bring_bricks_offline,
+    bring_bricks_online,
+    are_bricks_offline)
+from glustolibs.gluster.heal_libs import (monitor_heal_completion,
+                                          is_volume_in_split_brain)
+from glustolibs.io.utils import (collect_mounts_arequal)
+from glustolibs.gluster.glusterdir import mkdir
+from glustolibs.misc.misc_libs import upload_scripts
+
+
+@runs_on([['arbiter', 'distributed-arbiter'], ['glusterfs']])
+class TestGFIDSelfHeal(GlusterBaseClass):
+
+    """
+    Description:
+        Arbiter Test cases related to GFID self heal
+    """
+    @classmethod
+    def setUpClass(cls):
+        # Calling GlusterBaseClass setUpClass
+        cls.get_super_method(cls, 'setUpClass')()
+
+        # Upload io scripts for running IO on mounts
+        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 %s"
+                                 % cls.clients)
+        g.log.info("Successfully uploaded IO scripts to clients %s",
+                   cls.clients)
+
+    def setUp(self):
+        # Calling GlusterBaseClass
+        self.get_super_method(self, 'setUp')()
+
+        # 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
+        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
+        self.get_super_method(self, 'tearDown')()
+
+    def test_gfid_self_heal(self):
+        """
+        Test GFID self heal
+        Description:
+        - Creating directory test_compilation
+        - Write Deep directories and files
+        - Get arequal before getting bricks offline
+        - Select bricks to bring offline
+        - Bring brick offline
+        - Delete directory on mountpoint where data is writte
+        - Create the same directory and write same data
+        - Bring bricks online
+        - Wait for volume processes to be online
+        - Verify volume's all process are online
+        - Monitor heal completion
+        - Check for split-brain
+        - Get arequal after getting bricks online
+        """
+        # pylint: disable=too-many-branches,too-many-statements,too-many-locals
+        # Creating directory test_compilation
+        ret = mkdir(self.mounts[0].client_system, "{}/test_gfid_self_heal"
+                    .format(self.mounts[0].mountpoint))
+        self.assertTrue(ret, "Failed to create directory")
+        g.log.info("Directory 'test_gfid_self_heal' on %s created "
+                   "successfully", self.mounts[0])
+
+        # Write Deep directories and files
+        count = 1
+        for mount_obj in self.mounts:
+            cmd = ("/usr/bin/env python %s create_deep_dirs_with_files "
+                   "--dirname-start-num %d --dir-depth 2 "
+                   "--dir-length 10 --max-num-of-dirs 5 "
+                   "--num-of-files 5 %s/dir1" % (
+                       self.script_upload_path, count,
+                       mount_obj.mountpoint))
+            ret, _, _ = g.run(self.mounts[0].client_system, cmd)
+            self.assertEqual(ret, 0, "Failed to create files on mountpoint")
+            g.log.info("Successfully created files on mountpoint")
+            count += 10
+
+        # Get arequal before getting bricks offline
+        ret, result_before_offline = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Arequal after getting bricks offline '
+                   'is %s', result_before_offline)
+
+        # Select bricks to bring offline
+        bricks_to_bring_offline = select_volume_bricks_to_bring_offline(
+            self.mnode, self.volname)
+        self.assertIsNotNone(bricks_to_bring_offline, "List is empty")
+
+        # Bring brick offline
+        ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
+        self.assertTrue(ret, 'Failed to bring bricks {} offline'.
+                        format(bricks_to_bring_offline))
+
+        ret = are_bricks_offline(self.mnode, self.volname,
+                                 bricks_to_bring_offline)
+        self.assertTrue(ret, 'Bricks {} are not offline'.
+                        format(bricks_to_bring_offline))
+        g.log.info('Bringing bricks %s offline is successful',
+                   bricks_to_bring_offline)
+
+        # Delete directory on mountpoint where data is written
+        cmd = ('rm -rf -v %s/test_gfid_self_heal' % self.mounts[0].mountpoint)
+        ret, _, _ = g.run(self.mounts[0].client_system, cmd)
+        self.assertEqual(ret, 0, "Failed to delete directory")
+        g.log.info("Directory deleted successfully for %s", self.mounts[0])
+
+        # Create the same directory and write same data
+        ret = mkdir(self.mounts[0].client_system, "{}/test_gfid_self_heal"
+                    .format(self.mounts[0].mountpoint))
+        self.assertTrue(ret, "Failed to create directory")
+        g.log.info("Directory 'test_gfid_self_heal' on %s created "
+                   "successfully", self.mounts[0])
+
+        # Write the same files again
+        count = 1
+        for mount_obj in self.mounts:
+            cmd = ("/usr/bin/env python %s create_deep_dirs_with_files "
+                   "--dirname-start-num %d --dir-depth 2 "
+                   "--dir-length 10 --max-num-of-dirs 5 "
+                   "--num-of-files 5 %s/dir1" % (
+                       self.script_upload_path, count,
+                       mount_obj.mountpoint))
+            ret, _, _ = g.run(self.mounts[0].client_system, cmd)
+            self.assertEqual(ret, 0, "Failed to create files on mountpoint")
+            g.log.info("Successfully created files on mountpoint")
+            count += 10
+
+        # Bring bricks online
+        ret = bring_bricks_online(
+            self.mnode, self.volname,
+            bricks_to_bring_offline,
+            bring_bricks_online_methods=['volume_start_force'])
+        self.assertTrue(ret, 'Failed to bring bricks {} online'.format
+                        (bricks_to_bring_offline))
+        g.log.info('Bringing bricks %s online is successful',
+                   bricks_to_bring_offline)
+
+        # 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 {} processes to "
+                              "be online".format(self.volname)))
+        g.log.info("Successful in waiting for volume %s processes to be "
+                   "online", self.volname)
+
+        # Verify volume's all process are online
+        ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
+        self.assertTrue(ret, ("Volume {} : All process are not online".format
+                              (self.volname)))
+        g.log.info("Volume %s : All process are online", self.volname)
+
+        # Monitor heal completion
+        ret = monitor_heal_completion(self.mnode, self.volname)
+        self.assertTrue(ret, 'Heal has not yet completed')
+
+        # 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
+        ret, result_after_online = collect_mounts_arequal(self.mounts)
+        self.assertTrue(ret, 'Failed to get arequal')
+        g.log.info('Arequal after getting bricks online '
+                   'is %s', result_after_online)