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+# Copyright (C) 2021 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.
+
+# pylint: disable=too-many-statements, too-many-locals, unused-variable
+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.brick_libs import (get_all_bricks,
+ bring_bricks_offline,
+ bring_bricks_online,
+ are_bricks_offline)
+from glustolibs.gluster.heal_ops import trigger_heal
+from glustolibs.gluster.heal_libs import (is_volume_in_split_brain,
+ monitor_heal_completion,
+ is_heal_complete)
+
+from glustolibs.gluster.volume_ops import set_volume_options
+from glustolibs.gluster.glusterfile import create_link_file
+
+
+@runs_on([['distributed-replicated'], ['glusterfs']])
+class TestSelfHeal(GlusterBaseClass):
+
+ @classmethod
+ def setUpClass(cls):
+
+ # Calling GlusterBaseClass setUpClass
+ cls.get_super_method(cls, 'setUpClass')()
+
+ # Override Volumes
+ if cls.volume_type == "distributed-replicated":
+ # Define x3 distributed-replicated volume
+ cls.volume['voltype'] = {
+ 'type': 'distributed-replicated',
+ 'dist_count': 2,
+ 'replica_count': 3,
+ 'transport': 'tcp'}
+
+ # Setup Volume and Mount Volume
+ ret = cls.setup_volume_and_mount_volume(cls.mounts)
+ if not ret:
+ raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
+ g.log.info("Successful in Setup Volume and Mount Volume")
+
+ @classmethod
+ def tearDownClass(cls):
+
+ # Cleanup Volume
+ ret = cls.unmount_volume_and_cleanup_volume(cls.mounts)
+ if not ret:
+ raise ExecutionError("Failed to create volume")
+ g.log.info("Successful in cleaning up Volume %s", cls.volname)
+
+ cls.get_super_method(cls, 'tearDownClass')()
+
+ def _test_brick_down_with_file_rename(self, pfile, rfile, brick):
+ # Bring brick offline
+ g.log.info('Bringing brick %s offline', brick)
+ ret = bring_bricks_offline(self.volname, brick)
+ self.assertTrue(ret, 'Failed to bring brick %s offline'
+ % brick)
+
+ ret = are_bricks_offline(self.mnode, self.volname,
+ [brick])
+ self.assertTrue(ret, 'Brick %s is not offline'
+ % brick)
+ g.log.info('Bringing brick %s offline is successful',
+ brick)
+
+ # Rename file
+ cmd = ("mv %s/%s %s/%s"
+ % (self.mounts[0].mountpoint, pfile,
+ self.mounts[0].mountpoint, rfile))
+ ret, _, _ = g.run(self.clients[0], cmd)
+ self.assertEqual(ret, 0, "rename of file failed")
+
+ # Bring brick back online
+ g.log.info('Bringing brick %s online', brick)
+ ret = bring_bricks_online(self.mnode, self.volname,
+ brick)
+ self.assertTrue(ret, 'Failed to bring brick %s online' %
+ brick)
+ g.log.info('Bringing brick %s online is successful', brick)
+
+ def test_afr_heal_with_brickdown_hardlink(self):
+ """
+ Steps:
+ 1. Create 2 * 3 distribute replicate volume and disable all heals
+ 2. Create a file and 3 hardlinks to it from fuse mount.
+ 3. Kill brick4, rename HLINK1 to an appropriate name so that
+ it gets hashed to replicate-1
+ 4. Likewise rename HLINK3 and HLINK7 as well, killing brick5 and brick6
+ respectively each time. i.e. a different brick of the 2nd
+ replica is down each time.
+ 5. Now enable shd and let selfheals complete.
+ 6. Heal should complete without split-brains.
+ """
+ bricks_list = get_all_bricks(self.mnode, self.volname)
+ options = {"metadata-self-heal": "off",
+ "entry-self-heal": "off",
+ "data-self-heal": "off",
+ "self-heal-daemon": "off"}
+ g.log.info("setting options %s", options)
+ ret = set_volume_options(self.mnode, self.volname, options)
+ self.assertTrue(ret, ("Unable to set volume option %s for"
+ "volume %s" % (options, self.volname)))
+ g.log.info("Successfully set %s for volume %s", options, self.volname)
+
+ cmd = ("touch %s/FILE" % self.mounts[0].mountpoint)
+ ret, _, _ = g.run(self.clients[0], cmd)
+ self.assertEqual(ret, 0, "file creation failed")
+
+ # Creating a hardlink for the file created
+ for i in range(1, 4):
+ ret = create_link_file(self.clients[0],
+ '{}/FILE'.format(self.mounts[0].mountpoint),
+ '{}/HLINK{}'.format
+ (self.mounts[0].mountpoint, i))
+ self.assertTrue(ret, "Unable to create hard link file ")
+
+ # Bring brick3 offline,Rename file HLINK1,and bring back brick3 online
+ self._test_brick_down_with_file_rename("HLINK1", "NEW-HLINK1",
+ bricks_list[3])
+
+ # Bring brick4 offline,Rename file HLINK2,and bring back brick4 online
+ self._test_brick_down_with_file_rename("HLINK2", "NEW-HLINK2",
+ bricks_list[4])
+
+ # Bring brick5 offline,Rename file HLINK3,and bring back brick5 online
+ self._test_brick_down_with_file_rename("HLINK3", "NEW-HLINK3",
+ bricks_list[5])
+
+ # 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")
+
+ # 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')
+
+ # Check data on mount point
+ cmd = ("ls %s" % (self.mounts[0].mountpoint))
+ ret, _, _ = g.run(self.clients[0], cmd)
+ self.assertEqual(ret, 0, "failed to fetch data from mount point")