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authorBarak Sason Rofman <bsasonro@redhat.com>2020-12-27 11:43:27 +0200
committerArthy Loganathan <aloganat@redhat.com>2021-01-04 09:30:47 +0000
commit2f08b98416e264018de376c4c13d4c00203f2e68 (patch)
tree750d817fcd4becafa1c0dcc962c5644dbc541cbd /tests/functional
parent9a190b6494a82359fbb0f3b4a712ea7a97f681fb (diff)
[Test] Add TC to add peer to cluster while rebalance is in progress
Test case: 1. Detach a peer 2. Create a volume, start it and mount it 3. Start creating a few files on mount point 4. Collect arequal checksum on mount point pre-rebalance 5. Expand the volume 6. Start rebalance 7. While rebalance is going, probe a peer and check if the peer was probed successfully 8. Collect arequal checksum on mount point post-rebalance and compare with value from step 4 Change-Id: Ifee9f3dcd69e87ba1d5b4b97c29c0a6cb7491e60 Signed-off-by: Barak Sason Rofman <bsasonro@redhat.com>
Diffstat (limited to 'tests/functional')
-rw-r--r--tests/functional/dht/test_rebalance_peer_probe.py130
1 files changed, 130 insertions, 0 deletions
diff --git a/tests/functional/dht/test_rebalance_peer_probe.py b/tests/functional/dht/test_rebalance_peer_probe.py
new file mode 100644
index 0000000..7ffc9ca
--- /dev/null
+++ b/tests/functional/dht/test_rebalance_peer_probe.py
@@ -0,0 +1,130 @@
+# 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.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
+from glustolibs.gluster.peer_ops import (peer_probe_servers, peer_detach)
+
+
+@runs_on([['distributed'], ['glusterfs']])
+class TestRebalancePeerProbe(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
+ self.is_peer_detached = False
+
+ def tearDown(self):
+
+ # Unmount and clean volume
+ if not self.unmount_volume_and_cleanup_volume([self.mounts[0]]):
+ raise ExecutionError("Failed to Cleanup Volume")
+
+ # Probe detached node in case it's still detached
+ if self.is_peer_detached:
+ if not peer_probe_servers(self.mnode, self.servers[5]):
+ raise ExecutionError("Failed to probe detached "
+ "servers %s" % self.servers)
+ g.log.info("Peer probe success for detached "
+ "servers %s", self.servers)
+
+ # Calling GlusterBaseClass tearDown
+ self.get_super_method(self, 'tearDown')()
+
+ def test_rebalance_peer_probe(self):
+ """
+ Test case:
+ 1. Detach a peer
+ 2. Create a volume, start it and mount it
+ 3. Start creating a few files on mount point
+ 4. Collect arequal checksum on mount point pre-rebalance
+ 5. Expand the volume
+ 6. Start rebalance
+ 7. While rebalance is going, probe a peer and check if
+ the peer was probed successfully
+ 7. Collect arequal checksum on mount point post-rebalance
+ and compare wth value from step 4
+ """
+
+ # Detach a peer
+ ret, _, _ = peer_detach(self.mnode, self.servers[5])
+ self.assertEqual(ret, 0, "Failed to detach peer %s"
+ % self.servers[5])
+
+ self.is_peer_detached = True
+
+ # Start I/O from mount point and wait for it to complete
+ cmd = ("cd %s; for i in {1..1000} ; 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])
+
+ # 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 the volume %s"
+ % self.volname)
+
+ # Let rebalance run for a while
+ sleep(5)
+
+ # Add new node to the cluster
+ ret = peer_probe_servers(self.mnode, self.servers[5])
+ self.assertTrue(ret, "Failed to peer probe server : %s"
+ % self.servers[5])
+ g.log.info("Peer probe success for %s and all peers are in "
+ "connected state", self.servers[5])
+
+ self.is_peer_detached = False
+
+ # 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")