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authorRavishankar N <ravishankar@redhat.com>2018-06-22 17:47:46 +0530
committerAkarsha Rai <akrai@redhat.com>2018-07-01 14:15:10 +0000
commit7e6357dacecee660284fe0841579b748bd8eb26d (patch)
tree0a031ee896bb88b0babb906fbc71d80ead5159a7 /tests/functional/afr
parenta17e15c6b8215ead1a368106b6305d96f75f5ee3 (diff)
afr: Test gfid-split-brain resolution of files
This test creates gfid split-brain of files and uses the source-brick option in the CLI to resolve them. Polarion test: RHG3-4402 Change-Id: I4fb3f16bfcdf77afe92c3a6f98f259147fef30c2 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Diffstat (limited to 'tests/functional/afr')
-rw-r--r--tests/functional/afr/test_gfid_split_brain_resolution.py273
1 files changed, 273 insertions, 0 deletions
diff --git a/tests/functional/afr/test_gfid_split_brain_resolution.py b/tests/functional/afr/test_gfid_split_brain_resolution.py
new file mode 100644
index 0000000..0d6b0e2
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+++ b/tests/functional/afr/test_gfid_split_brain_resolution.py
@@ -0,0 +1,273 @@
+# Copyright (C) 2017-2018 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_libs import get_subvols
+from glustolibs.gluster.brick_libs import (bring_bricks_offline,
+ bring_bricks_online,
+ are_bricks_offline,
+ wait_for_bricks_to_be_online,
+ get_all_bricks)
+from glustolibs.gluster.volume_ops import set_volume_options
+from glustolibs.gluster.glusterdir import mkdir
+from glustolibs.gluster.heal_ops import (enable_self_heal_daemon,
+ trigger_heal)
+from glustolibs.gluster.heal_libs import (
+ is_volume_in_split_brain,
+ is_heal_complete,
+ wait_for_self_heal_daemons_to_be_online,
+ monitor_heal_completion)
+from glustolibs.gluster.glusterfile import GlusterFile
+
+
+@runs_on([['replicated', 'distributed-replicated'],
+ ['glusterfs']])
+class TestSelfHeal(GlusterBaseClass):
+ """
+ Description:
+ Test cases related to
+ healing in default configuration of the volume
+ """
+
+ @classmethod
+ def setUpClass(cls):
+ # Calling GlusterBaseClass setUpClass
+ GlusterBaseClass.setUpClass.im_func(cls)
+
+ # Override replica count to be 3
+ if cls.volume_type == "replicated":
+ cls.volume['voltype'] = {
+ 'type': 'replicated',
+ 'replica_count': 3,
+ 'transport': 'tcp'}
+
+ if cls.volume_type == "distributed-replicated":
+ cls.volume['voltype'] = {
+ 'type': 'distributed-replicated',
+ 'dist_count': 2,
+ 'replica_count': 3,
+ 'transport': 'tcp'}
+
+ 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,
+ volume_create_force=False)
+ if not ret:
+ raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
+ g.log.info("Successful in Setup Volume and Mount Volume")
+
+ self.bricks_list = get_all_bricks(self.mnode, self.volname)
+
+ def tearDown(self):
+ """
+ If test method failed before validating IO, tearDown waits for the
+ IO's to complete and checks for the IO exit status
+
+ 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 toggle_bricks_and_perform_io(self, file_list, brick_list):
+ """
+ Kills bricks, does I/O and brings the brick back up.
+ """
+ # Bring down bricks.
+ g.log.info("Going to bring down the brick process for %s", brick_list)
+ ret = bring_bricks_offline(self.volname, brick_list)
+ self.assertTrue(ret, ("Failed to bring down the bricks. Please "
+ "check the log file for more details."))
+ g.log.info("Brought down the brick process "
+ "for %s succesfully", brick_list)
+ ret = are_bricks_offline(self.mnode, self.volname, brick_list)
+ self.assertTrue(ret, 'Bricks %s are not offline' % brick_list)
+
+ # Perform I/O
+ for filename in file_list:
+ fpath = self.mounts[0].mountpoint + "/test_gfid_split_brain/" + \
+ filename
+ cmd = ("dd if=/dev/urandom of=%s bs=1024 count=1" % fpath)
+ ret, _, _ = g.run(self.clients[0], cmd)
+ self.assertEqual(ret, 0, "Creating %s failed" % fpath)
+
+ # Bring up bricks
+ ret = bring_bricks_online(self.mnode, self.volname, brick_list)
+ self.assertTrue(ret, 'Failed to bring brick %s online' % brick_list)
+ g.log.info('Bringing brick %s online is successful', brick_list)
+
+ # Waiting for bricks to come online
+ g.log.info("Waiting for brick process to come online")
+ timeout = 30
+ ret = wait_for_bricks_to_be_online(self.mnode, self.volname, timeout)
+ self.assertTrue(ret, "bricks didn't come online after adding bricks")
+ g.log.info("Bricks are online")
+
+ def resolve_gfid_split_brain(self, filename, source_brick):
+ """
+ resolves gfid split-brain on files using source-brick option
+ """
+ node, _ = source_brick.split(':')
+ command = ("gluster volume heal " + self.volname + " split-brain "
+ "source-brick " + source_brick + " " + filename)
+ ret, _, _ = g.run(node, command)
+ self.assertEqual(ret, 0, "command execution not successful")
+
+ def test_gfid_split_brain_resolution(self):
+ """
+ - create gfid split-brain of files and resolves them using source-brick
+ option of the CLI.
+ """
+
+ # pylint: disable=too-many-statements
+ # pylint: disable=too-many-locals
+
+ # Disable all self-heals and client-quorum
+ options = {"self-heal-daemon": "off",
+ "data-self-heal": "off",
+ "metadata-self-heal": "off",
+ "entry-self-heal": "off",
+ "cluster.quorum-type": "none"}
+ g.log.info("setting volume 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("Sucessfully set %s for volume %s", options, self.volname)
+
+ # Create dir inside which I/O will be performed.
+ ret = mkdir(self.mounts[0].client_system, "%s/test_gfid_split_brain"
+ % self.mounts[0].mountpoint)
+ self.assertTrue(ret, "mkdir failed")
+
+ # get the subvolumes
+ g.log.info("Starting to get sub-volumes for volume %s", self.volname)
+ subvols_dict = get_subvols(self.mnode, self.volname)
+ num_subvols = len(subvols_dict['volume_subvols'])
+ g.log.info("Number of subvolumes in volume %s:", num_subvols)
+
+ # Toggle bricks and perform I/O
+ file_list = ["file1.txt", "file2.txt", "file3.txt", "file4.txt",
+ "file5.txt", "file6.txt", "file7.txt", "file8.txt",
+ "file9.txt", "file10.txt"]
+ brick_index = 0
+ offline_bricks = []
+ for _ in range(0, 3):
+ for i in range(0, num_subvols):
+ subvol_brick_list = subvols_dict['volume_subvols'][i]
+ offline_bricks.append(subvol_brick_list[brick_index % 3])
+ offline_bricks.append(subvol_brick_list[(brick_index+1) % 3])
+ self.toggle_bricks_and_perform_io(file_list, offline_bricks)
+ brick_index += 1
+ offline_bricks[:] = []
+
+ # Enable shd
+ g.log.info("enabling the self heal daemon")
+ ret = enable_self_heal_daemon(self.mnode, self.volname)
+ self.assertTrue(ret, "failed to enable self heal daemon")
+ g.log.info("Successfully enabled the self heal daemon")
+
+ # Wait for self heal processes to come online
+ g.log.info("Wait for selfheal process to come online")
+ timeout = 300
+ ret = wait_for_self_heal_daemons_to_be_online(self.mnode, self.volname,
+ timeout)
+ self.assertTrue(ret, "Self-heal process are not online")
+ g.log.info("All self heal process are online")
+
+ # Trigger heal
+ ret = trigger_heal(self.mnode, self.volname)
+ self.assertTrue(ret, 'Starting heal failed')
+ g.log.info('Index heal launched')
+
+ # checking if file is in split-brain
+ ret = is_volume_in_split_brain(self.mnode, self.volname)
+ self.assertTrue(ret, "Files are not in split-brain as expected.")
+ g.log.info("Files are still in split-brain")
+
+ # First brick of each replica will be used as source-brick
+ first_brick_list = []
+ for i in range(0, num_subvols):
+ subvol_brick_list = subvols_dict['volume_subvols'][i]
+ brick = subvol_brick_list[0]
+ first_brick_list.append(brick)
+
+ # Find which dht subvols the 10 files are present in and trigger heal
+ for filename in file_list:
+ fpath = self.mounts[0].mountpoint + "/test_gfid_split_brain/" + \
+ filename
+ gfile = GlusterFile(self.clients[0], fpath)
+ for brick in first_brick_list:
+ _, brick_path = brick.split(':')
+ match = [brick for item in gfile.hashed_bricks if brick_path
+ in item]
+ if match:
+ self.resolve_gfid_split_brain("/test_gfid_split_brain/" +
+ filename, brick)
+
+ # Trigger heal to complete pending data/metadata heals
+ ret = trigger_heal(self.mnode, self.volname)
+ self.assertTrue(ret, 'Starting heal failed')
+ g.log.info('Index heal launched')
+
+ # 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')
+
+ # Get arequals and compare
+ for i in range(0, num_subvols):
+ # Get arequal for first brick
+ subvol_brick_list = subvols_dict['volume_subvols'][i]
+ node, brick_path = subvol_brick_list[0].split(':')
+ command = ('arequal-checksum -p %s '
+ '-i .glusterfs -i .landfill -i .trashcan'
+ % brick_path)
+ ret, arequal, _ = g.run(node, command)
+ first_brick_total = arequal.splitlines()[-1].split(':')[-1]
+
+ # Get arequal for every brick and compare with first brick
+ for brick in subvol_brick_list[1:]:
+ node, brick_path = brick.split(':')
+ command = ('arequal-checksum -p %s '
+ '-i .glusterfs -i .landfill -i .trashcan'
+ % brick_path)
+ ret, brick_arequal, _ = g.run(node, command)
+ self.assertFalse(ret,
+ 'Failed to get arequal on brick %s'
+ % brick)
+ g.log.info('Getting arequal for %s is successful', brick)
+ brick_total = brick_arequal.splitlines()[-1].split(':')[-1]
+
+ self.assertEqual(first_brick_total, brick_total,
+ 'Arequals for subvol and %s are not equal'
+ % brick)
+ g.log.info('Arequals for subvol and %s are equal', brick)