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authorBala Konda Reddy M <bala12352@gmail.com>2020-07-30 20:07:01 +0530
committerBala Konda Reddy M <bala12352@gmail.com>2020-08-21 09:43:05 +0000
commit2fc4502768e25ff1248f5c1f2217bea201bdae95 (patch)
tree2c1993f4f7d600b420bbec8213c2b4ace88151fd /tests/functional/afr
parent0efb694a1a558aab40e743d61f124af5e3ef7314 (diff)
[Test] Directory creation with subvol down
Test Steps: 1. Create a distributed-replicated(3X3)/distributed-arbiter(3X(2+1)) and mount it on one client 2. Kill 3 bricks corresponding to the 1st subvol 3. Unmount and remount the volume on the same client 4. Create deep dir from mount point 'dir1/subdir1/deepdir1' 5. Create files under dir1/subdir1/deepdir1; touch <filename> 6. Now bring all sub-vols up by volume start force 7. Validate backend bricks for dir creation, the subvol which is offline will have no dirs created, whereas other subvols will have dirs created from step 4 8. Trigger heal from client by '#find . | xargs stat' 9. Verify that the directory entries are created on all back-end bricks 10. Create new dir (dir2) on location dir1/subdir1/deepdir1 11. Trigger rebalance and wait for the completion 12. Check backend bricks for all entries of dirs Change-Id: I4d8f39e69c84c28ec238ea73935cd7ca0288bffc Signed-off-by: Bala Konda Reddy M <bala12352@gmail.com>
Diffstat (limited to 'tests/functional/afr')
-rw-r--r--tests/functional/afr/test_afr_dir_entry_creation_with_subvol_down.py194
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diff --git a/tests/functional/afr/test_afr_dir_entry_creation_with_subvol_down.py b/tests/functional/afr/test_afr_dir_entry_creation_with_subvol_down.py
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+++ b/tests/functional/afr/test_afr_dir_entry_creation_with_subvol_down.py
@@ -0,0 +1,194 @@
+# 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 glusto.core import Glusto as g
+from glustolibs.gluster.brick_libs import (bring_bricks_offline,
+ are_bricks_offline)
+from glustolibs.gluster.dht_test_utils import (create_brickobjectlist,
+ find_specific_hashed)
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
+from glustolibs.gluster.glusterdir import mkdir
+from glustolibs.gluster.glusterfile import file_exists
+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)
+from glustolibs.gluster.mount_ops import umount_volume, mount_volume
+
+
+@runs_on([['distributed-arbiter', 'distributed-replicated'], ['glusterfs']])
+class TestAfrDirEntryCreationWithSubvolDown(GlusterBaseClass):
+
+ def setUp(self):
+ # calling GlusterBaseClass setUp
+ self.get_super_method(self, 'setUp')()
+
+ # Changing the distrubte count to 3 as per the test.
+ self.volume['voltype']['dist_count'] = 3
+ # Setup volume and mount it on three clients.
+ if not self.setup_volume_and_mount_volume(mounts=[self.mounts[0]]):
+ raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
+
+ def tearDown(self):
+
+ # Unmount and cleanup the volume
+ if not self.unmount_volume_and_cleanup_volume(mounts=[self.mounts[0]]):
+ raise ExecutionError("Unable to unmount and cleanup volume")
+
+ # Calling GlusterBaseClass tearDown
+ self.get_super_method(self, 'tearDown')()
+
+ def _check_file_exists(self, subvol, directory, exists=True):
+ """ Validates given directory present on brick path of each subvol """
+ for each_brick in subvol:
+ node, brick_path = each_brick.split(":")
+ path = brick_path + directory
+ ret = file_exists(node, path)
+ self.assertEqual(exists, ret, "Unexpected behaviour, existence "
+ "check of directory {} on brick returned"
+ " {}".format(directory, each_brick))
+
+ def _create_file(self, location, file_name):
+ """ Creates a file with file_name on the specified location"""
+ source_file = "{}/{}".format(location, file_name)
+ ret, _, err = g.run(self.mounts[0].client_system,
+ ("touch %s" % source_file))
+ self.assertEqual(ret, 0, ("Failed to create {} on {}: err"
+ " {}".format(source_file, location, err)))
+ g.log.info("Successfully created %s on: %s", file_name, location)
+
+ def _create_number_of_files_on_the_subvol(self, subvol_object, directory,
+ number_of_files, mountpath):
+ """Creates number of files specified on the given subvol"""
+ name = None
+ for _ in range(number_of_files):
+ hashed = find_specific_hashed(self.subvols, directory,
+ subvol_object, existing_names=name)
+ self.assertIsNotNone(hashed, "Couldn't find a subvol to "
+ "create a file.")
+ self._create_file(mountpath, hashed.newname)
+ name = hashed.newname
+
+ def test_afr_dir_entry_creation_with_subvol_down(self):
+ """
+ 1. Create a distributed-replicated(3X3)/distributed-arbiter(3X(2+1))
+ and mount it on one client
+ 2. Kill 3 bricks corresponding to the 1st subvol
+ 3. Unmount and remount the volume on the same client
+ 4. Create deep dir from mount point
+ mkdir -p dir1/subdir1/deepdir1
+ 5. Create files under dir1/subdir1/deepdir1; touch <filename>
+ 6. Now bring all sub-vols up by volume start force
+ 7. Validate backend bricks for dir creation, the subvol which is
+ offline will have no dirs created, whereas other subvols will have
+ dirs created from step 4
+ 8. Trigger heal from client by "#find . | xargs stat"
+ 9. Verify that the directory entries are created on all back-end bricks
+ 10. Create new dir (dir2) on location dir1/subdir1/deepdir1
+ 11. Trigger rebalance and wait for the completion
+ 12. Check backend bricks for all entries of dirs
+ 13. Check if files are getting created on the subvol which was offline
+ """
+ # Bring down first subvol of bricks offline
+ self.subvols = get_subvols(self.mnode, self.volname)['volume_subvols']
+ first_subvol = self.subvols[0]
+ ret = bring_bricks_offline(self.volname, first_subvol)
+ self.assertTrue(ret, "Unable to bring {} bricks offline".
+ format(first_subvol))
+
+ # Check bricks are offline or not
+ ret = are_bricks_offline(self.mnode, self.volname, first_subvol)
+ self.assertTrue(ret, "Bricks {} are still online".format(first_subvol))
+
+ # Unmount and remount the volume
+ ret, _, _ = umount_volume(
+ self.mounts[0].client_system, self.mounts[0].mountpoint)
+ self.assertFalse(ret, "Failed to unmount volume.")
+ ret, _, _ = mount_volume(self.volname, self.mount_type,
+ self.mounts[0].mountpoint, self.mnode,
+ self.mounts[0].client_system)
+ self.assertFalse(ret, "Failed to remount volume.")
+ g.log.info('Successfully umounted and remounted volume.')
+
+ # At this step, sleep is must otherwise file creation will fail
+ sleep(2)
+
+ # Create dir `dir1/subdir1/deepdir1` on mountpont
+ directory1 = "dir1/subdir1/deepdir1"
+ path = self.mounts[0].mountpoint + "/" + directory1
+ ret = mkdir(self.mounts[0].client_system, path, parents=True)
+ self.assertTrue(ret, "Directory {} creation failed".format(path))
+
+ # Create files on the 2nd and 3rd subvols which are online
+ brickobject = create_brickobjectlist(self.subvols, directory1)
+ self.assertIsNotNone(brickobject, "Failed to get brick object list")
+ self._create_number_of_files_on_the_subvol(
+ brickobject[1], directory1, 5, mountpath=path)
+ self._create_number_of_files_on_the_subvol(
+ brickobject[2], directory1, 5, mountpath=path)
+
+ # Bring bricks online using volume start force
+ ret, _, err = volume_start(self.mnode, self.volname, force=True)
+ self.assertEqual(ret, 0, err)
+ g.log.info("Volume: %s started successfully", self.volname)
+
+ # Check all bricks are online
+ ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
+ self.assertTrue(ret, "Few process after volume start are offline for "
+ "volume: {}".format(self.volname))
+
+ # Validate Directory is not created on the bricks of the subvol which
+ # is offline
+ for subvol in self.subvols:
+ self._check_file_exists(subvol, "/" + directory1,
+ exists=(subvol != first_subvol))
+
+ # Trigger heal from the client
+ cmd = "cd {}; find . | xargs stat".format(self.mounts[0].mountpoint)
+ ret, _, err = g.run(self.mounts[0].client_system, cmd)
+ self.assertEqual(ret, 0, err)
+
+ # Validate the directory1 is present on all the bricks
+ for subvol in self.subvols:
+ self._check_file_exists(subvol, "/" + directory1, exists=True)
+
+ # Create new dir (dir2) on location dir1/subdir1/deepdir1
+ directory2 = "/" + directory1 + '/dir2'
+ path = self.mounts[0].mountpoint + directory2
+ ret = mkdir(self.mounts[0].client_system, path, parents=True)
+ self.assertTrue(ret, "Directory {} creation failed".format(path))
+
+ # Trigger rebalance and validate the completion
+ ret, _, err = rebalance_start(self.mnode, self.volname)
+ self.assertEqual(ret, 0, err)
+ g.log.info("Rebalance on volume %s started successfully", self.volname)
+ ret = wait_for_rebalance_to_complete(self.mnode, self.volname)
+ self.assertTrue(ret, "Rebalance didn't complete on the volume: "
+ "{}".format(self.volname))
+
+ # Validate all dirs are present on all bricks in each subvols
+ for subvol in self.subvols:
+ for each_dir in ("/" + directory1, directory2):
+ self._check_file_exists(subvol, each_dir, exists=True)
+
+ # Validate if files are getting created on the subvol which was
+ # offline
+ self._create_number_of_files_on_the_subvol(
+ brickobject[0], directory1, 5, mountpath=path)