summaryrefslogtreecommitdiffstats
path: root/tests
diff options
context:
space:
mode:
authorkshithijiyer <kshithij.ki@gmail.com>2020-10-28 16:37:40 +0530
committerArthy Loganathan <aloganat@redhat.com>2020-11-12 11:49:25 +0000
commit4280b12b69844d57c70c6a05916d79d778971463 (patch)
tree6af5309e592e1cef798c2e44b7fe3c38f3b70039 /tests
parent6040547e85a28801c418ec1aae3a468b48973181 (diff)
[Test] Add test for full brick + add brick + remove brick
Test case: 1. Create a volume, start it and mount it. 2. Fill few bricks till min.free.limit is reached. 3. Add brick to the volume. 4. Set cluster.min-free-disk to 30%. 5. Remove bricks from the volume. (Remove brick should pass without any errors) 6. Check for data loss by comparing arequal before and after. Change-Id: I0033ec47ab2a2958178ce23c9d164939c9bce2f3 Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/functional/dht/test_brick_full_add_brick_remove_brick.py111
1 files changed, 111 insertions, 0 deletions
diff --git a/tests/functional/dht/test_brick_full_add_brick_remove_brick.py b/tests/functional/dht/test_brick_full_add_brick_remove_brick.py
new file mode 100644
index 0000000..eaf7daf
--- /dev/null
+++ b/tests/functional/dht/test_brick_full_add_brick_remove_brick.py
@@ -0,0 +1,111 @@
+# 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.
+
+import string
+from random import choice
+
+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.brick_libs import get_all_bricks
+from glustolibs.gluster.dht_test_utils import find_hashed_subvol
+from glustolibs.gluster.lib_utils import get_usable_size_per_disk
+from glustolibs.gluster.volume_libs import (get_subvols, expand_volume,
+ shrink_volume)
+from glustolibs.gluster.volume_ops import set_volume_options
+from glustolibs.io.utils import collect_mounts_arequal
+
+
+@runs_on([['distributed-replicated', 'distributed-arbiter'], ['glusterfs']])
+class TestBrickFullAddBrickRemoveBrickRebalance(GlusterBaseClass):
+
+ def setUp(self):
+
+ self.get_super_method(self, 'setUp')()
+
+ # Creating Volume and mounting the volume
+ ret = self.setup_volume_and_mount_volume([self.mounts[0]])
+ if not ret:
+ raise ExecutionError("Volume creation or mount failed: %s"
+ % self.volname)
+
+ def tearDown(self):
+
+ # Unmounting and cleaning volume
+ ret = self.unmount_volume_and_cleanup_volume([self.mounts[0]])
+ if not ret:
+ raise ExecutionError("Unable to delete volume %s" % self.volname)
+
+ self.get_super_method(self, 'tearDown')()
+
+ @staticmethod
+ def _get_random_string():
+ letters = string.ascii_lowercase
+ return ''.join(choice(letters) for _ in range(5))
+
+ def test_brick_full_add_brick_remove_brick(self):
+ """
+ Test case:
+ 1. Create a volume, start it and mount it.
+ 2. Fill few bricks till min-free-limit is reached.
+ 3. Add brick to the volume.(This should pass.)
+ 4. Set cluster.min-free-disk to 30%.
+ 5. Remove bricks from the volume.(This should pass.)
+ 6. Check for data loss by comparing arequal before and after.
+ """
+ # Fill few bricks till it is full
+ bricks = get_all_bricks(self.mnode, self.volname)
+
+ # Calculate the usable size and fill till it reaches
+ # min free limit
+ usable_size = get_usable_size_per_disk(bricks[0])
+ subvols = get_subvols(self.mnode, self.volname)['volume_subvols']
+ filename = "abc"
+ for _ in range(0, usable_size):
+ while (subvols[find_hashed_subvol(subvols, "/", filename)[1]]
+ == subvols[0]):
+ filename = self._get_random_string()
+ ret, _, _ = g.run(self.mounts[0].client_system,
+ "fallocate -l 1G {}/{}".format(
+ self.mounts[0].mountpoint, filename))
+ self.assertFalse(ret, "Failed to fill disk to min free limit")
+ filename = self._get_random_string()
+ g.log.info("Disk filled up to min free limit")
+
+ # Collect arequal checksum before ops
+ arequal_checksum_before = collect_mounts_arequal(self.mounts[0])
+
+ # Add brick to volume
+ ret = expand_volume(self.mnode, self.volname, self.servers,
+ self.all_servers_info)
+ self.assertTrue(ret, "Failed to add brick on volume %s"
+ % self.volname)
+
+ # Set cluster.min-free-disk to 30%
+ ret = set_volume_options(self.mnode, self.volname,
+ {'cluster.min-free-disk': '30%'})
+ self.assertTrue(ret, "Failed to set cluster.min-free-disk to 30%")
+
+ # Remove bricks from the volume
+ ret = shrink_volume(self.mnode, self.volname, rebalance_timeout=1800)
+ self.assertTrue(ret, "Failed to remove-brick from volume")
+ g.log.info("Remove-brick rebalance successful")
+
+ # Check for data loss by comparing arequal before and after ops
+ arequal_checksum_after = collect_mounts_arequal(self.mounts[0])
+ self.assertEqual(arequal_checksum_before, arequal_checksum_after,
+ "arequal checksum is NOT MATCHNG")
+ g.log.info("arequal checksum is SAME")