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-rw-r--r--tests/functional/dht/test_rebalance_multiple_expansions.py100
1 files changed, 100 insertions, 0 deletions
diff --git a/tests/functional/dht/test_rebalance_multiple_expansions.py b/tests/functional/dht/test_rebalance_multiple_expansions.py
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+++ b/tests/functional/dht/test_rebalance_multiple_expansions.py
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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.
+
+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.rebalance_ops import (
+ rebalance_start, wait_for_rebalance_to_complete)
+from glustolibs.gluster.volume_libs import expand_volume
+from glustolibs.io.utils import collect_mounts_arequal
+
+
+@runs_on([['distributed', 'distributed-replicated'],
+ ['glusterfs']])
+class TestRebalanceMultipleExpansions(GlusterBaseClass):
+
+ def setUp(self):
+
+ self.get_super_method(self, 'setUp')()
+
+ # 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_expansions(self):
+ """
+ Test case:
+ 1. Create a volume, start it and mount it
+ 2. Create some file on mountpoint
+ 3. Collect arequal checksum on mount point pre-rebalance
+ 4. Do the following 3 times:
+ 5. Expand the volume
+ 6. Start rebalance and wait for it to finish
+ 7. Collect arequal checksum on mount point post-rebalance
+ and compare with value from step 3
+ """
+
+ # 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):
+ # 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)
+
+ # Trigger rebalance and wait for it to complete
+ ret, _, _ = rebalance_start(self.mnode, self.volname,
+ force=True)
+ self.assertEqual(ret, 0, "Failed to start rebalance on "
+ "volume %s" % self.volname)
+
+ # Wait for rebalance to complete
+ ret = wait_for_rebalance_to_complete(self.mnode, self.volname,
+ timeout=1200)
+ self.assertTrue(ret, "Rebalance is not yet complete on the volume "
+ "%s" % self.volname)
+ g.log.info("Rebalance successfully completed")
+
+ # 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")