def test_heketi_with_expand_volume(self):
"""
Test volume expand and size if updated correctly in heketi-cli info
"""
vol_info = heketi_volume_create(self.heketi_client_node,
self.heketi_server_url,
self.volume_size,
json=True)
self.assertTrue(
vol_info,
("Failed to create heketi volume of size %s" % self.volume_size))
self.addCleanup(heketi_volume_delete, self.heketi_client_node,
self.heketi_server_url, vol_info['id'])
self.assertEqual(vol_info['size'], self.volume_size,
("Failed to create volume."
"Expected Size: %s, Actual Size: %s" %
(self.volume_size, vol_info['size'])))
volume_id = vol_info["id"]
expand_size = 2
ret = heketi_volume_expand(self.heketi_client_node,
self.heketi_server_url, volume_id,
expand_size)
self.assertTrue(
ret, ("Failed to expand heketi volume of id %s" % volume_id))
volume_info = heketi_volume_info(self.heketi_client_node,
self.heketi_server_url,
volume_id,
json=True)
expected_size = self.volume_size + expand_size
self.assertEqual(volume_info['size'], expected_size,
("Volume Expansion failed Expected Size: %s, Actual "
"Size: %s" %
(str(expected_size), str(volume_info['size']))))
def test_volume_expansion_rebalance_brick(self):
"""Validate volume expansion with brick and check rebalance"""
creation_info = heketi_ops.heketi_volume_create(
self.heketi_client_node, self.heketi_server_url, 10, json=True)
self.assertNotEqual(creation_info, False, "Volume creation failed")
volume_name = creation_info["name"]
volume_id = creation_info["id"]
free_space_after_creation = self.get_devices_summary_free_space()
volume_info_before_expansion = heketi_ops.heketi_volume_info(
self.heketi_client_node,
self.heketi_server_url,
volume_id,
json=True)
self.assertNotEqual(volume_info_before_expansion, False,
"Volume info for %s failed" % volume_id)
heketi_vol_info_size_before_expansion = (
volume_info_before_expansion["size"])
self.get_brick_and_volume_status(volume_name)
num_of_bricks_before_expansion = self.get_num_of_bricks(volume_name)
expansion_info = heketi_ops.heketi_volume_expand(
self.heketi_client_node, self.heketi_server_url, volume_id, 5)
self.assertNotEqual(expansion_info, False,
"Volume expansion of %s failed" % volume_id)
free_space_after_expansion = self.get_devices_summary_free_space()
self.assertTrue(
free_space_after_creation > free_space_after_expansion,
"Free space not consumed after expansion of %s" % volume_id)
volume_info_after_expansion = heketi_ops.heketi_volume_info(
self.heketi_client_node,
self.heketi_server_url,
volume_id,
json=True)
self.assertNotEqual(volume_info_after_expansion, False,
"Volume info failed for %s" % volume_id)
heketi_vol_info_size_after_expansion = (
volume_info_after_expansion["size"])
difference_size = (heketi_vol_info_size_after_expansion -
heketi_vol_info_size_before_expansion)
self.assertTrue(difference_size > 0,
"Size not increased after expansion of %s" % volume_id)
self.get_brick_and_volume_status(volume_name)
num_of_bricks_after_expansion = self.get_num_of_bricks(volume_name)
num_of_bricks_added = (num_of_bricks_after_expansion -
num_of_bricks_before_expansion)
self.assertEqual(num_of_bricks_added, 3,
"Number of bricks added is not 3 for %s" % volume_id)
self.get_rebalance_status(volume_name)
deletion_info = heketi_ops.heketi_volume_delete(
self.heketi_client_node,
self.heketi_server_url,
volume_id,
json=True)
self.assertNotEqual(deletion_info, False,
"Deletion of volume %s failed" % volume_id)
free_space_after_deletion = self.get_devices_summary_free_space()
self.assertTrue(
free_space_after_deletion > free_space_after_expansion,
"Free space is not reclaimed after volume deletion of %s" %
volume_id)
def test_volume_expansion_no_free_space(self):
"""Validate volume expansion when there is no free space"""
vol_size, expand_size, additional_devices_attached = None, 10, {}
h_node, h_server_url = self.heketi_client_node, self.heketi_server_url
# Get nodes info
heketi_node_id_list = heketi_ops.heketi_node_list(h_node, h_server_url)
if len(heketi_node_id_list) < 3:
self.skipTest("3 Heketi nodes are required.")
# Disable 4th and other nodes
for node_id in heketi_node_id_list[3:]:
heketi_ops.heketi_node_disable(h_node, h_server_url, node_id)
self.addCleanup(heketi_ops.heketi_node_enable, h_node,
h_server_url, node_id)
# Prepare first 3 nodes
smallest_size = None
err_msg = ''
for node_id in heketi_node_id_list[0:3]:
node_info = heketi_ops.heketi_node_info(h_node,
h_server_url,
node_id,
json=True)
# Disable second and other devices
devices = node_info["devices"]
self.assertTrue(devices,
"Node '%s' does not have devices." % node_id)
if devices[0]["state"].strip().lower() != "online":
self.skipTest("Test expects first device to be enabled.")
if (smallest_size is None
or devices[0]["storage"]["free"] < smallest_size):
smallest_size = devices[0]["storage"]["free"]
for device in node_info["devices"][1:]:
heketi_ops.heketi_device_disable(h_node, h_server_url,
device["id"])
self.addCleanup(heketi_ops.heketi_device_enable, h_node,
h_server_url, device["id"])
# Gather info about additional devices
additional_device_name = None
for gluster_server in self.gluster_servers:
gluster_server_data = self.gluster_servers_info[gluster_server]
g_manage = gluster_server_data["manage"]
g_storage = gluster_server_data["storage"]
if not (g_manage in node_info["hostnames"]["manage"]
or g_storage in node_info["hostnames"]["storage"]):
continue
additional_device_name = ((
gluster_server_data.get("additional_devices") or [''])[0])
break
if not additional_device_name:
err_msg += (
"No 'additional_devices' are configured for "
"'%s' node, which has following hostnames and "
"IP addresses: %s.\n" %
(node_id, ', '.join(node_info["hostnames"]["manage"] +
node_info["hostnames"]["storage"])))
continue
heketi_ops.heketi_device_add(h_node, h_server_url,
additional_device_name, node_id)
additional_devices_attached.update(
{node_id: additional_device_name})
# Schedule cleanup of the added devices
for node_id in additional_devices_attached.keys():
node_info = heketi_ops.heketi_node_info(h_node,
h_server_url,
node_id,
json=True)
for device in node_info["devices"]:
if device["name"] != additional_devices_attached[node_id]:
continue
self.addCleanup(self.detach_devices_attached, device["id"])
break
else:
self.fail("Could not find ID for added device on "
"'%s' node." % node_id)
if err_msg:
self.skipTest(err_msg)
# Temporary disable new devices
self.disable_devices(additional_devices_attached)
# Create volume and save info about it
vol_size = int(smallest_size / (1024**2)) - 1
creation_info = heketi_ops.heketi_volume_create(h_node,
h_server_url,
vol_size,
json=True)
volume_name, volume_id = creation_info["name"], creation_info["id"]
self.addCleanup(heketi_ops.heketi_volume_delete,
h_node,
h_server_url,
volume_id,
raise_on_error=False)
volume_info_before_expansion = heketi_ops.heketi_volume_info(
h_node, h_server_url, volume_id, json=True)
num_of_bricks_before_expansion = self.get_num_of_bricks(volume_name)
self.get_brick_and_volume_status(volume_name)
free_space_before_expansion = self.get_devices_summary_free_space()
# Try to expand volume with not enough device space
self.assertRaises(ExecutionError, heketi_ops.heketi_volume_expand,
h_node, h_server_url, volume_id, expand_size)
# Enable new devices to be able to expand our volume
self.enable_devices(additional_devices_attached)
# Expand volume and validate results
heketi_ops.heketi_volume_expand(h_node,
h_server_url,
volume_id,
expand_size,
json=True)
free_space_after_expansion = self.get_devices_summary_free_space()
self.assertGreater(
free_space_before_expansion, free_space_after_expansion,
"Free space not consumed after expansion of %s" % volume_id)
num_of_bricks_after_expansion = self.get_num_of_bricks(volume_name)
self.get_brick_and_volume_status(volume_name)
volume_info_after_expansion = heketi_ops.heketi_volume_info(
h_node, h_server_url, volume_id, json=True)
self.assertGreater(volume_info_after_expansion["size"],
volume_info_before_expansion["size"],
"Size of %s not increased" % volume_id)
self.assertGreater(num_of_bricks_after_expansion,
num_of_bricks_before_expansion)
self.assertEqual(
num_of_bricks_after_expansion % num_of_bricks_before_expansion, 0)
# Delete volume and validate release of the used space
heketi_ops.heketi_volume_delete(h_node, h_server_url, volume_id)
free_space_after_deletion = self.get_devices_summary_free_space()
self.assertGreater(
free_space_after_deletion, free_space_after_expansion,
"Free space not reclaimed after deletion of volume %s" % volume_id)