def get_disk_used_by(objstore, conn, path): try: with objstore as session: try: used_by = session.get("storagevolume", path)["used_by"] except (KeyError, NotFoundError): wok_log.info("Volume %s not found in obj store." % path) used_by = [] # try to find this volume in existing vm vms_list = VMsModel.get_vms(conn) for vm in vms_list: dom = VMModel.get_vm(vm, conn) storages = get_vm_disks(dom) for disk in storages.keys(): d_info = get_vm_disk_info(dom, disk) if path == d_info["path"]: used_by.append(vm) try: session.store("storagevolume", path, {"used_by": used_by}, get_kimchi_version()) except Exception as e: # Let the exception be raised. If we allow disks' # used_by to be out of sync, data corruption could # occour if a disk is added to two guests # unknowingly. wok_log.error("Unable to store storage volume id in" " objectstore due error: %s", e.message) raise OperationFailed("KCHVOL0017E", {"err": e.message}) except Exception as e: # This exception is going to catch errors returned by 'with', # specially ones generated by 'session.store'. It is outside # to avoid conflict with the __exit__ function of 'with' raise OperationFailed("KCHVOL0017E", {"err": e.message}) return used_by
def get_disk_used_by(objstore, conn, path): try: with objstore as session: try: used_by = session.get('storagevolume', path)['used_by'] except (KeyError, NotFoundError): wok_log.info('Volume %s not found in obj store.' % path) used_by = [] # try to find this volume in existing vm vms_list = VMsModel.get_vms(conn) for vm in vms_list: dom = VMModel.get_vm(vm, conn) storages = get_vm_disks(dom) for disk in storages.keys(): d_info = get_vm_disk_info(dom, disk) if path == d_info['path']: used_by.append(vm) try: session.store('storagevolume', path, {'used_by': used_by}, get_kimchi_version()) except Exception as e: # Let the exception be raised. If we allow disks' # used_by to be out of sync, data corruption could # occour if a disk is added to two guests # unknowingly. wok_log.error( 'Unable to store storage volume id in' ' objectstore due error: %s', e.message) raise OperationFailed('KCHVOL0017E', {'err': e.message}) except Exception as e: # This exception is going to catch errors returned by 'with', # specially ones generated by 'session.store'. It is outside # to avoid conflict with the __exit__ function of 'with' raise OperationFailed('KCHVOL0017E', {'err': e.message}) return used_by
def get_disk_used_by(conn, path): used_by = [] # try to find this volume in existing vm vms_list = VMsModel.get_vms(conn) for vm in vms_list: dom = VMModel.get_vm(vm, conn) storages = get_vm_disks(dom) for disk in storages.keys(): d_info = get_vm_disk_info(dom, disk) if path == d_info['path']: used_by.append(vm) return used_by
def _get_unavailable_devices(self): vm_list = VMsModel.get_vms(self.conn) unavailable_devs = [] for vm in vm_list: dom = VMModel.get_vm(vm, self.conn) xmlstr = dom.XMLDesc(0) root = objectify.fromstring(xmlstr) try: hostDevices = root.devices.hostdev except AttributeError: continue vm_devs = [DeviceModel.deduce_dev_name(e, self.conn) for e in hostDevices] for dev in vm_devs: unavailable_devs.append(dev) return unavailable_devs