diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/functional/dht/test_add_brick_replace_brick_fix_layout.py | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/tests/functional/dht/test_add_brick_replace_brick_fix_layout.py b/tests/functional/dht/test_add_brick_replace_brick_fix_layout.py new file mode 100644 index 000000000..66f39ff24 --- /dev/null +++ b/tests/functional/dht/test_add_brick_replace_brick_fix_layout.py @@ -0,0 +1,124 @@ +# 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 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_ops import add_brick +from glustolibs.gluster.brick_libs import get_all_bricks +from glustolibs.gluster.glusterfile import get_fattr +from glustolibs.gluster.rebalance_ops import (rebalance_start, + wait_for_fix_layout_to_complete) +from glustolibs.gluster.volume_libs import (form_bricks_list_to_add_brick, + replace_brick_from_volume) + + +@runs_on([['distributed-replicated', 'distributed-arbiter'], ['glusterfs']]) +class TestAddBrickReplaceBrickFixLayout(GlusterBaseClass): + + def setUp(self): + + self.get_super_method(self, 'setUp')() + + # Changing dist_count to 3 + self.volume['voltype']['dist_count'] = 3 + + # 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) + + self.first_client = self.mounts[0].client_system + + 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')() + + def _replace_a_old_added_brick(self, brick_to_be_replaced): + """Replace a old brick from the volume""" + ret = replace_brick_from_volume(self.mnode, self.volname, + self.servers, self.all_servers_info, + src_brick=brick_to_be_replaced) + self.assertTrue(ret, "Failed to replace brick %s " + % brick_to_be_replaced) + g.log.info("Successfully replaced brick %s", brick_to_be_replaced) + + def _check_trusted_glusterfs_dht_on_all_bricks(self): + """Check trusted.glusterfs.dht xattr on the backend bricks""" + bricks = get_all_bricks(self.mnode, self.volname) + fattr_value = [] + for brick_path in bricks: + node, path = brick_path.split(":") + ret = get_fattr(node, "{}".format(path), "trusted.glusterfs.dht") + fattr_value += [ret] + self.assertEqual(len(set(fattr_value)), 4, + "Value of trusted.glusterfs.dht is not as expected") + g.log.info("Successfully checked value of trusted.glusterfs.dht.") + + def test_add_brick_replace_brick_fix_layout(self): + """ + Test case: + 1. Create a volume, start it and mount it. + 2. Create files and dirs on the mount point. + 3. Add bricks to the volume. + 4. Replace 2 old brick to the volume. + 5. Trigger rebalance fix layout and wait for it to complete. + 6. Check layout on all the bricks through trusted.glusterfs.dht. + """ + # Create directories with some files on mount point + cmd = ("cd %s; for i in {1..10}; do mkdir dir$i; for j in {1..5};" + " do dd if=/dev/urandom of=dir$i/file$j bs=1M count=1; done;" + " done" % self.mounts[0].mountpoint) + ret, _, _ = g.run(self.first_client, cmd) + self.assertFalse(ret, "Failed to create dirs and files.") + + # Orginal brick list before add brick + brick_list = get_all_bricks(self.mnode, self.volname) + self.assertIsNotNone(brick_list, "Empty present brick list") + + # Add bricks to the volume + add_brick_list = form_bricks_list_to_add_brick( + self.mnode, self.volname, self.servers, self.all_servers_info) + self.assertIsNotNone(add_brick_list, "Empty add brick list") + + ret, _, _ = add_brick(self.mnode, self.volname, add_brick_list) + self.assertFalse(ret, "Failed to add bricks to the volume") + g.log.info("Successfully added bricks to the volume") + + # Replace 2 old bricks to the volume + for _ in range(0, 2): + brick = choice(brick_list) + self._replace_a_old_added_brick(brick) + brick_list.remove(brick) + + # Start rebalance and wait for it to complete + ret, _, _ = rebalance_start(self.mnode, self.volname, fix_layout=True) + self.assertFalse(ret, "Failed to start rebalance on volume") + + ret = wait_for_fix_layout_to_complete(self.mnode, self.volname, + timeout=800) + self.assertTrue(ret, "Rebalance failed on volume") + + # Check layout on all the bricks through trusted.glusterfs.dht + self._check_trusted_glusterfs_dht_on_all_bricks() |