[SVF]:HyperSwap volume service status update
[Spectrum Virtualize Family] During HyperSwap volume service initialization, replication status is updated as disabled. with this patch updating the replication status based on volume node status. Closes-Bug: #1931968 Change-Id: I0db4a3ff34ddd87f2e51cb7095952a7f61b0c326
This commit is contained in:
GirishChilukuri
katari manoj kumar
parent
8930fbac3c
commit
8a240585b5
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@ -4830,6 +4830,111 @@ class StorwizeSVCCommonDriverTestCase(test.TestCase):
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self.assertRaises(exception.InvalidInput,
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self._driver._validate_pools_exist)
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@ddt.data({'node1': 'online', 'node2': 'online', 'node3': 'online',
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'node4': 'online', 'state': 'enabled', 'reason': None},
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{'node1': 'online', 'node2': 'online', 'node3': 'offline',
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'node4': 'offline', 'state': 'disabled',
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'reason': 'site2 is down'},
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{'node1': 'offline', 'node2': 'offline', 'node3': 'online',
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'node4': 'online', 'state': 'disabled',
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'reason': 'site1 is down'},
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{'node1': 'offline', 'node2': 'offline', 'node3': 'offline',
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'node4': 'offline', 'state': 'disabled',
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'reason': 'site1 is down'})
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@mock.patch.object(storwize_svc_common.StorwizeHelpers,
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'get_node_info')
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def test_get_hyperswap_storage_state(self, node_data, get_node_info):
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get_node_info.return_value = {'7': {'id': '7', 'name': 'node1',
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'status': node_data['node1'],
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'site_id': '1',
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'site_name': 'site1'},
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'8': {'id': '8', 'name': 'node2',
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'status': node_data['node2'],
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'site_id': '1',
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'site_name': 'site1'},
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'9': {'id': '9', 'name': 'node3',
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'status': node_data['node3'],
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'site_id': '2',
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'site_name': 'site2'},
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'10': {'id': '10', 'name': 'node4',
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'status': node_data['node4'],
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'site_id': '2',
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'site_name': 'site2'}}
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state, reason = self.driver.get_hyperswap_storage_state()
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self.assertEqual(state, node_data['state'])
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self.assertEqual(reason, node_data['reason'])
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@ddt.data((True, 'online'),
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(True, 'offline'),
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(False, 'online'),
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(False, 'offline'))
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@mock.patch.object(storwize_svc_common.StorwizeSSH,
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'lsnode')
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@ddt.unpack
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def test_get_node_info(self, online_node, node_status, lsnode):
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empty_nodes_info = {}
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fake_lsnode_info = [{
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'id': 1,
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'name': 'test',
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'IO_group_id': 'test_io_group',
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'iscsi_name': 'test_iscsi',
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'WWNN': '123456',
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'status': node_status,
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'WWPN': '8999',
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'ipv4': '192.9.123.1',
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'ipv6': '1.2.3.4',
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'enabled_protocols': 'ipv6',
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'site_id': '1783',
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'site_name': 'test-sitename'
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}]
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lsnode.return_value = fake_lsnode_info
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nodes = self.driver._helpers.get_node_info(online_node)
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if not online_node or online_node and node_status == 'online':
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self.assertIsNotNone(nodes)
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elif online_node and node_status == 'offline':
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self.assertEqual(nodes, empty_nodes_info)
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@ddt.data((False, 'enabled', ''),
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(False, 'disabled', 'site 2 down'),
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(True, '', ''))
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@mock.patch.object(storwize_svc_common.StorwizeSVCCommonDriver,
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'get_hyperswap_storage_state')
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@ddt.unpack
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def test_update_volume_stats(self, is_replica_enabled,
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replication_status,
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reason, get_hs_storage_state):
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self._replica_enabled = is_replica_enabled
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self.driver._update_volume_stats()
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if not self._replica_enabled:
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with mock.patch.object(
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storwize_svc_common.StorwizeHelpers,
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'is_system_topology_hyperswap') as is_hyperswap:
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with mock.patch.object(
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storwize_svc_common.StorwizeHelpers,
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'get_node_info') as get_node_info:
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is_hyperswap.return_value = is_hyperswap
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if is_hyperswap:
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get_node_info.return_value = None
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get_hs_storage_state.side_effect =\
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exception.VolumeBackendAPIException(data='')
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self.assertRaises(exception.VolumeBackendAPIException,
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get_hs_storage_state)
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get_hs_storage_state.return_value = (
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replication_status, reason)
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if replication_status != 'enabled':
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self.assertNotEqual(
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fields.ReplicationStatus.ENABLED,
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replication_status)
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self.assertIsNotNone(reason)
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else:
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self.assertEqual(fields.ReplicationStatus.ENABLED,
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replication_status)
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self.assertEqual(reason, '')
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else:
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self.assertFalse(get_hs_storage_state.called)
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def _get_pool_volumes(self, pool):
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vdisks = self.sim._cmd_lsvdisks_from_filter('mdisk_grp_name', pool)
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return vdisks
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@ -1026,13 +1026,13 @@ class StorwizeHelpers(object):
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return int(iogrp['id'])
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return None
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def get_node_info(self):
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def get_node_info(self, online_node=True):
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"""Return dictionary containing information on system's nodes."""
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nodes = {}
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resp = self.ssh.lsnode()
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for node_data in resp:
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try:
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if node_data['status'] != 'online':
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if online_node and node_data['status'] != 'online':
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continue
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node = {}
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node['id'] = node_data['id']
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@ -1048,6 +1048,8 @@ class StorwizeHelpers(object):
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nodes[node['id']] = node
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node['site_id'] = (node_data['site_id']
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if 'site_id' in node_data else None)
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node['site_name'] = (node_data['site_name']
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if 'site_name' in node_data else None)
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except KeyError:
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self.handle_keyerror('lsnode', node_data)
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return nodes
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@ -6080,6 +6082,34 @@ class StorwizeSVCCommonDriver(san.SanDriver,
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return attr['mdisk_grp_name']
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def get_hyperswap_storage_state(self):
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storage_state = fields.ReplicationStatus.ENABLED
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disabled_reason = None
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site_node_info = {}
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site_node_down_info = {}
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storage_nodes = self._helpers.get_node_info(online_node=False)
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for node, node_info in storage_nodes.items():
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if node_info['site_id']:
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site = node_info['site_id']
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if site not in site_node_info:
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site_node_info[site] = []
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site_node_down_info[site] = {'nodes_down': 0}
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site_node_info[site].append(node_info)
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if node_info['status'] not in ['online', 'degraded']:
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site_node_down_info[site]['nodes_down'] += 1
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for site, site_info in site_node_down_info.items():
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if len(site_node_info[site]) == site_info['nodes_down']:
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storage_state = fields.ReplicationStatus.DISABLED
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site_name = site_node_info[site][0]['site_name']
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disabled_reason = "{0} is down".format(site_name)
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break
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return storage_state, disabled_reason
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def _update_volume_stats(self):
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"""Retrieve stats info from volume group."""
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@ -6109,6 +6139,18 @@ class StorwizeSVCCommonDriver(san.SanDriver,
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data['replication_enabled'] = self._replica_enabled
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data['replication_targets'] = self._get_replication_targets()
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data['consistent_group_replication_enabled'] = True
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if self._helpers.is_system_topology_hyperswap(self._state):
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data['replication_enabled'] = True
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try:
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state, reason = self.get_hyperswap_storage_state()
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if state != fields.ReplicationStatus.ENABLED:
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data['replication_enabled'] = False
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data['disabled_reason'] = reason
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except exception.VolumeBackendAPIException as exc:
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LOG.warning("Failed to get node info. "
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"Exception: %(ex)s.", {'ex': exc.msg})
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self._stats = data
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def _build_pool_stats(self, pool):
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@ -0,0 +1,8 @@
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---
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fixes:
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- |
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IBM Spectrum Virtualize Family driver `Bug #1931968
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<https://bugs.launchpad.net/cinder/+bug/1931968>`_: Fixed
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issue in updating the replication status of HyperSwap volume
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service based on status of nodes during initialization and
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periodic calls.
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