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diff --git a/tests/functional/afr/heal/test_afr_self_heal_add_brick_rebalance.py b/tests/functional/afr/heal/test_afr_self_heal_add_brick_rebalance.py
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+# 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 time import sleep
+from random import sample
+
+from glusto.core import Glusto as g
+from glustolibs.gluster.brick_libs import (bring_bricks_offline,
+ are_bricks_offline)
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
+from glustolibs.gluster.heal_libs import (is_volume_in_split_brain,
+ monitor_heal_completion)
+from glustolibs.gluster.lib_utils import collect_bricks_arequal
+from glustolibs.gluster.rebalance_ops import (rebalance_start,
+ wait_for_rebalance_to_complete)
+from glustolibs.gluster.volume_ops import volume_start
+from glustolibs.gluster.volume_libs import (
+ verify_all_process_of_volume_are_online, get_subvols, expand_volume,
+ wait_for_volume_process_to_be_online)
+from glustolibs.io.utils import (validate_io_procs,
+ list_all_files_and_dirs_mounts,
+ wait_for_io_to_complete)
+from glustolibs.misc.misc_libs import upload_scripts
+
+
+@runs_on([['arbiter', 'distributed-arbiter', 'replicated',
+ 'distributed-replicated'], ['glusterfs']])
+class TestAfrSelfHealAddBrickRebalance(GlusterBaseClass):
+
+ @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 setUp
+ self.get_super_method(self, 'setUp')()
+
+ if not self.setup_volume_and_mount_volume(self.mounts):
+ raise ExecutionError("Unable to setup and mount volume")
+
+ def tearDown(self):
+
+ # Wait if any IOs are pending from the test
+ if self.all_mounts_procs:
+ ret = wait_for_io_to_complete(self.all_mounts_procs, self.mounts)
+ if ret:
+ raise ExecutionError(
+ "Wait for IO completion failed on some of the clients")
+
+ # Unmount and cleanup the volume
+ if not self.unmount_volume_and_cleanup_volume(self.mounts):
+ raise ExecutionError("Unable to unmount and cleanup volume")
+
+ # Calling GlusterBaseClass Teardown
+ self.get_super_method(self, 'tearDown')()
+
+ def test_afr_self_heal_add_brick_rebalance(self):
+ """
+ Test Steps:
+ 1. Create a replicated/distributed-replicate volume and mount it
+ 2. Start IO from the clients
+ 3. Bring down a brick from the subvol and validate it is offline
+ 4. Bring back the brick online and wait for heal to complete
+ 5. Once the heal is completed, expand the volume.
+ 6. Trigger rebalance and wait for rebalance to complete
+ 7. Validate IO, no errors during the steps performed from step 2
+ 8. Check arequal of the subvol and all the brick in the same subvol
+ should have same checksum
+ """
+ # Start IO from the clients
+ self.all_mounts_procs = []
+ for count, mount_obj in enumerate(self.mounts):
+ g.log.info("Starting IO on %s:%s", mount_obj.client_system,
+ mount_obj.mountpoint)
+ cmd = ("/usr/bin/env python %s create_deep_dirs_with_files "
+ "--dirname-start-num %d --dir-depth 3 --dir-length 5 "
+ "--max-num-of-dirs 5 --num-of-files 30 %s" % (
+ self.script_upload_path, count,
+ mount_obj.mountpoint))
+ proc = g.run_async(mount_obj.client_system, cmd,
+ user=mount_obj.user)
+ self.all_mounts_procs.append(proc)
+
+ # List a brick in each subvol and bring them offline
+ subvols = get_subvols(self.mnode, self.volname)['volume_subvols']
+ brick_to_bring_offline = []
+ for subvol in subvols:
+ self.assertTrue(subvol, "List is empty")
+ brick_to_bring_offline.extend(sample(subvol, 1))
+
+ ret = bring_bricks_offline(self.volname, brick_to_bring_offline)
+ self.assertTrue(ret, "Unable to bring brick: {} offline".format(
+ brick_to_bring_offline))
+
+ # Validate the brick is offline
+ ret = are_bricks_offline(self.mnode, self.volname,
+ brick_to_bring_offline)
+ self.assertTrue(ret, "Brick:{} is still online".format(
+ brick_to_bring_offline))
+
+ # Wait for 10 seconds for IO to be generated
+ sleep(10)
+
+ # Start volume with force to bring all bricks online
+ ret, _, _ = volume_start(self.mnode, self.volname, force=True)
+ self.assertEqual(ret, 0, "Volume start with force failed")
+ g.log.info("Volume: %s started successfully", 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 %s : All process are not online",
+ self.volname))
+
+ # Monitor heal completion
+ self.assertTrue(monitor_heal_completion(self.mnode, self.volname,
+ interval_check=10),
+ "Heal failed after 20 mins")
+
+ # Check are there any files in split-brain and heal completion
+ self.assertFalse(is_volume_in_split_brain(self.mnode, self.volname),
+ "Some files are in split brain for "
+ "volume: {}".format(self.volname))
+
+ # Expanding volume by adding bricks to the volume when IO in progress
+ ret = expand_volume(self.mnode, self.volname, self.servers,
+ self.all_servers_info)
+ self.assertTrue(ret, ("Failed to expand the volume when IO in "
+ "progress on volume %s", self.volname))
+
+ # 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))
+
+ # Start Rebalance
+ ret, _, _ = rebalance_start(self.mnode, self.volname)
+ self.assertEqual(ret, 0, ("Failed to start rebalance on the volume "
+ "%s", self.volname))
+ g.log.info("Successfully started rebalance on the "
+ "volume %s", self.volname)
+
+ # Without sleep the next step will fail with Glusterd Syncop locking.
+ sleep(2)
+
+ # Wait for rebalance to complete
+ ret = wait_for_rebalance_to_complete(self.mnode, self.volname,
+ timeout=1800)
+ self.assertTrue(ret, ("Rebalance is not yet complete on the volume "
+ "%s", self.volname))
+ g.log.info("Rebalance is successfully complete on "
+ "the volume %s", self.volname)
+
+ # Validate IO
+ ret = validate_io_procs(self.all_mounts_procs, self.mounts)
+ self.io_validation_complete = True
+ self.assertTrue(ret, "IO failed on some of the clients")
+ self.all_mounts_procs *= 0
+
+ # List all files and dirs created
+ ret = list_all_files_and_dirs_mounts(self.mounts)
+ self.assertTrue(ret, "Failed to list all files and dirs")
+
+ # Check arequal checksum of all the bricks is same
+ for subvol in subvols:
+ ret, arequal_from_the_bricks = collect_bricks_arequal(subvol)
+ self.assertTrue(ret, "Arequal is collected successfully across "
+ "the bricks in the subvol {}".format(subvol))
+ cmd = len(set(arequal_from_the_bricks))
+ if (self.volume_type == "arbiter" or
+ self.volume_type == "distributed-arbiter"):
+ cmd = len(set(arequal_from_the_bricks[:2]))
+ self.assertEqual(cmd, 1, "Arequal"
+ " is same on all the bricks in the subvol")