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+# 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.misc.misc_libs import upload_scripts
+from glustolibs.io.utils import (collect_mounts_arequal, validate_io_procs)
+
+
+@runs_on([['replicated', 'distributed-replicated'],
+ ['glusterfs', 'cifs', '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_data_self_heal_algorithm_diff_default(self):
+ """
+ Test Volume Option - 'cluster.data-self-heal-algorithm' : 'diff'
+
+ Description:
+ - set the volume option "data-self-heal-algorithm" to value "diff"
+ - create IO
+ - bring down all bricks processes from selected set
+ - modify the data
+ - calculate arequal
+ - bring bricks online
+ - start healing
+ - calculate arequal and compare with arequal before bringing bricks
+ offline and after bringing bricks online
+ """
+ # pylint: disable=too-many-locals,too-many-statements
+ # Setting options
+ g.log.info('Setting options "data-self-heal-algorithm": "diff"...')
+ options = {"data-self-heal-algorithm": "diff"}
+ ret = set_volume_options(self.mnode, self.volname, options)
+ self.assertTrue(ret, 'Failed to set options')
+ g.log.info("Option 'data-self-heal-algorithm' is set to 'diff' "
+ "successfully")
+
+ # Creating files on client side
+ all_mounts_procs = []
+ g.log.info("Generating data for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ # Creating files
+ command = ("python %s create_files -f 100 %s"
+ % (self.script_upload_path, self.mounts[0].mountpoint))
+
+ 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"
+ )
+
+ # 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)
+
+ # Modify the data
+ all_mounts_procs = []
+ g.log.info("Modifying data for %s:%s",
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ command = ("python %s create_files -f 100 --fixed-file-size 1M %s"
+ % (self.script_upload_path, self.mounts[0].mountpoint))
+
+ 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 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)
+
+ # 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")
+
+ # 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 are not equal')
+ g.log.info('Checksums before bringing bricks online '
+ 'and after bringing bricks online are equal')