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authorBarak Sason Rofman <bsasonro@redhat.com>2021-01-19 13:30:55 +0200
committerArthy Loganathan <aloganat@redhat.com>2021-03-09 05:48:28 +0000
commit7a3ab878848a61817937db3598919a129d2cd348 (patch)
treefeaa6bb3a4d196b4b7e2faec89c41c481fbbf8d6 /tests/functional
parentf2cd5e10c5ae16cc5c08797ceec9955caf1b5d14 (diff)
[Test] Add TC to test multiple volume shrinks and rebalanceHEADmaster
Test case: 1. Modify the distribution count of a volume 2. Create a volume, start it and mount it 3. Create some file on mountpoint 4. Collect arequal checksum on mount point pre-rebalance 5. Do the following 3 times: 6. Shrink the volume 7. Collect arequal checksum on mount point post-rebalance and compare with value from step 4 Change-Id: Ib64575e759617684009c68d8b6bb5f011c553b55 Signed-off-by: Barak Sason Rofman <bsasonro@redhat.com>
Diffstat (limited to 'tests/functional')
-rw-r--r--tests/functional/dht/test_rebalance_multiple_shrinks.py87
1 files changed, 87 insertions, 0 deletions
diff --git a/tests/functional/dht/test_rebalance_multiple_shrinks.py b/tests/functional/dht/test_rebalance_multiple_shrinks.py
new file mode 100644
index 0000000..a95cdf1
--- /dev/null
+++ b/tests/functional/dht/test_rebalance_multiple_shrinks.py
@@ -0,0 +1,87 @@
+# 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.
+
+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 shrink_volume
+from glustolibs.io.utils import collect_mounts_arequal
+
+
+@runs_on([['distributed'], ['glusterfs']])
+class TestRebalanceMultipleShrinks(GlusterBaseClass):
+
+ def setUp(self):
+
+ self.get_super_method(self, 'setUp')()
+
+ # Changing dist_count to 6
+ self.volume['voltype']['dist_count'] = 6
+
+ # Setup Volume
+ if not self.setup_volume_and_mount_volume([self.mounts[0]]):
+ raise ExecutionError("Failed to Setup and mount volume")
+
+ self.first_client = self.mounts[0].client_system
+
+ def tearDown(self):
+
+ # Unmount and clean volume
+ if not self.unmount_volume_and_cleanup_volume([self.mounts[0]]):
+ raise ExecutionError("Failed to Cleanup Volume")
+
+ # Calling GlusterBaseClass tearDown
+ self.get_super_method(self, 'tearDown')()
+
+ def test_rebalance_multiple_shrinks(self):
+ """
+ Test case:
+ 1. Modify the distribution count of a volume
+ 2. Create a volume, start it and mount it
+ 3. Create some file on mountpoint
+ 4. Collect arequal checksum on mount point pre-rebalance
+ 5. Do the following 3 times:
+ 6. Shrink the volume
+ 7. Collect arequal checksum on mount point post-rebalance
+ and compare with value from step 4
+ """
+
+ # Create some file on mountpoint
+ cmd = ("cd %s; for i in {1..500} ; do "
+ "dd if=/dev/urandom of=file$i bs=10M count=1; done"
+ % self.mounts[0].mountpoint)
+ ret, _, _ = g.run(self.first_client, cmd)
+ self.assertEqual(ret, 0, "IO failed on volume %s"
+ % self.volname)
+
+ # Collect arequal checksum before rebalance
+ arequal_checksum_before = collect_mounts_arequal(self.mounts[0])
+
+ for _ in range(3):
+ # Shrink volume
+ ret = shrink_volume(self.mnode, self.volname,
+ rebalance_timeout=16000)
+ self.assertTrue(ret, "Failed to remove-brick from volume")
+ g.log.info("Remove-brick rebalance successful")
+
+ # Collect arequal checksum after rebalance
+ arequal_checksum_after = collect_mounts_arequal(self.mounts[0])
+
+ # Check for data loss by comparing arequal before and after
+ # rebalance
+ self.assertEqual(arequal_checksum_before, arequal_checksum_after,
+ "arequal checksum is NOT MATCHNG")
+ g.log.info("arequal checksum is SAME")