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-rw-r--r--glustolibs-gluster/glustolibs/gluster/dht_test_utils.py2
-rw-r--r--tests/functional/afr/test_add_brick_followed_by_remove_brick.py170
2 files changed, 172 insertions, 0 deletions
diff --git a/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py b/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
index d205211..11f2eda 100644
--- a/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
+++ b/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
@@ -456,3 +456,5 @@ def is_layout_complete(mnode, volname, dirpath):
return False
elif hash_difference < 1:
g.log.error("Layout has overlaps")
+
+ return True
diff --git a/tests/functional/afr/test_add_brick_followed_by_remove_brick.py b/tests/functional/afr/test_add_brick_followed_by_remove_brick.py
new file mode 100644
index 0000000..a653b79
--- /dev/null
+++ b/tests/functional/afr/test_add_brick_followed_by_remove_brick.py
@@ -0,0 +1,170 @@
+# 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.brick_libs import get_all_bricks
+from glustolibs.gluster.dht_test_utils import is_layout_complete
+from glustolibs.gluster.glusterfile import (file_exists,
+ occurences_of_pattern_in_file)
+from glustolibs.gluster.rebalance_ops import (rebalance_start,
+ wait_for_rebalance_to_complete)
+from glustolibs.gluster.volume_libs import expand_volume, shrink_volume
+from glustolibs.io.utils import (validate_io_procs, wait_for_io_to_complete)
+from glustolibs.misc.misc_libs import upload_scripts
+
+
+@runs_on([['replicated'], ['glusterfs']])
+class TestAddBrickFollowedByRemoveBrick(GlusterBaseClass):
+
+ @classmethod
+ def setUpClass(cls):
+ cls.get_super_method(cls, 'setUpClass')()
+
+ cls.first_client = cls.mounts[0].client_system
+ cls.mountpoint = cls.mounts[0].mountpoint
+ cls.is_io_running = False
+
+ # Upload IO scripts for running IO on mounts
+ cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
+ "file_dir_ops.py")
+ if not file_exists(cls.first_client, cls.script_upload_path):
+ if not upload_scripts(cls.first_client, cls.script_upload_path):
+ raise ExecutionError(
+ "Failed to upload IO scripts to client %s"
+ % cls.first_client)
+
+ 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")
+
+ def tearDown(self):
+
+ if self.is_io_running:
+ if not wait_for_io_to_complete(self.all_mounts_procs,
+ [self.mounts[0]]):
+ raise ExecutionError("IO failed on some of the clients")
+
+ 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 _check_layout_of_bricks(self):
+ """Check the layout of bricks"""
+ ret = is_layout_complete(self.mnode, self.volname, "/")
+ self.assertTrue(ret, ("Volume %s: Layout is not complete",
+ self.volname))
+ g.log.info("Volume %s: Layout is complete", self.volname)
+
+ def _add_brick_and_wait_for_rebalance_to_complete(self):
+ """Add brick and wait for rebalance to complete"""
+
+ # 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)
+
+ # 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")
+
+ self._check_layout_of_bricks()
+
+ def _remove_brick_from_volume(self):
+ """Remove bricks from volume"""
+ # Remove bricks from the volume
+ ret = shrink_volume(self.mnode, self.volname, rebalance_timeout=2000)
+ self.assertTrue(ret, "Failed to remove-brick from volume")
+ g.log.info("Remove-brick rebalance successful")
+
+ def test_add_brick_followed_by_remove_brick(self):
+ """
+ Test case:
+ 1. Create a volume, start it and mount it to a client.
+ 2. Start I/O on volume.
+ 3. Add brick and trigger rebalance, wait for rebalance to complete.
+ (The volume which was 1x3 should now be 2x3)
+ 4. Add brick and trigger rebalance, wait for rebalance to complete.
+ (The volume which was 2x3 should now be 3x3)
+ 5. Remove brick from volume such that it becomes a 2x3.
+ 6. Remove brick from volume such that it becomes a 1x3.
+ 7. Wait for I/O to complete and check for any input/output errors in
+ both client and rebalance logs.
+ """
+ # Start I/O on mount point
+ self.all_mounts_procs = []
+ cmd = ("/usr/bin/env python {} create_deep_dirs_with_files "
+ "--dirname-start-num {} --dir-depth 5 --dir-length 5 "
+ "--max-num-of-dirs 5 --num-of-files 5 {}"
+ .format(self.script_upload_path, 10, self.mountpoint))
+ proc = g.run_async(self.first_client, cmd)
+ self.all_mounts_procs.append(proc)
+ self.is_io_running = True
+
+ # Convert 1x3 to 2x3 and then convert 2x3 to 3x3
+ for _ in range(0, 2):
+ self._add_brick_and_wait_for_rebalance_to_complete()
+
+ # Convert 3x3 to 2x3 and then convert 2x3 to 1x3
+ for _ in range(0, 2):
+ self._remove_brick_from_volume()
+
+ # Validate I/O processes running on the nodes
+ ret = validate_io_procs(self.all_mounts_procs, [self.mounts[0]])
+ self.is_io_running = False
+ self.assertTrue(ret, "IO failed on some of the clients")
+ g.log.info("IO on all mounts: Complete")
+
+ # Check for Input/output errors in rebalance logs
+ particiapting_nodes = []
+ for brick in get_all_bricks(self.mnode, self.volname):
+ node, _ = brick.split(':')
+ particiapting_nodes.append(node)
+
+ for server in particiapting_nodes:
+ ret = occurences_of_pattern_in_file(
+ server, "Input/output error",
+ "/var/log/glusterfs/{}-rebalance.log".format(self.volname))
+ self.assertEqual(ret, 0,
+ "[Input/output error] present in rebalance log"
+ " file")
+
+ # Check for Input/output errors in client logs
+ ret = occurences_of_pattern_in_file(
+ self.first_client, "Input/output error",
+ "/var/log/glusterfs/mnt-{}_{}.log".format(self.volname,
+ self.mount_type))
+ self.assertEqual(ret, 0,
+ "[Input/output error] present in client log file")
+ g.log.info("Expanding and shrinking volume successful and no I/O "
+ "errors see in rebalance and client logs")