def follow_server_migrate(self, uuid, current_host, new_host):
"""Modify the host name associated with a share server and its shares.
Particularly to reflect if a migration was performed at the back-end
level without driver assistance.
The network allocation (neutron port) will also be updated.
"""
self._validate_hosts(current_host, new_host)
ctxt = context.get_admin_context()
server = db.share_server_get(ctxt, uuid)
server_host = server['host']
current_host_without_pool = current_host.split('#')[0]
new_host_without_pool = new_host.split('#')[0]
if current_host_without_pool in server_host:
db.share_server_update(
ctxt, uuid,
self._update_host_values(server_host, current_host, new_host))
for si in db.share_instances_get_all_by_share_server(ctxt, uuid):
si_host = si['host']
if current_host_without_pool in si_host:
db.share_instance_update(
ctxt, si['id'],
self._update_host_values(si_host, current_host, new_host))
ports = db.network_allocations_get_for_share_server(ctxt, uuid)
port_new_host = new_host_without_pool.split('@')[0]
for port in ports:
self._update_port_host_id(port['id'], port_new_host)
def _migrate_share_set_error(self, context, ex, request_spec):
instance = next((x for x in share_ref.instances
if x['status'] == constants.STATUS_MIGRATING),
None)
if instance:
db.share_instance_update(
context, instance['id'],
{'status': constants.STATUS_AVAILABLE})
self._set_share_state_and_notify(
'migrate_share_to_host',
{'task_state': constants.TASK_STATE_MIGRATION_ERROR}, context,
ex, request_spec)
def _migrate_share_set_error(self, context, ex, request_spec):
instance = next((x for x in share_ref.instances
if x['status'] == constants.STATUS_MIGRATING),
None)
if instance:
db.share_instance_update(
context, instance['id'],
{'status': constants.STATUS_AVAILABLE})
self._set_share_state_and_notify(
'migrate_share_to_host',
{'task_state': constants.TASK_STATE_MIGRATION_ERROR},
context, ex, request_spec)
def _update(self, *args, **kwargs):
db.share_instance_update(*args, **kwargs)
