def create_backup(self, context, backup_id, instance_id):
instance_tasks = models.BuiltInstanceTasks.load(context, instance_id)
flavorid = instance_tasks.flavor_id
flavor = KSC_Instance._check_flavor(context, flavorid)._info
disk = max(flavor.get("disk", 1), 1)
ram = max(flavor.get("ram", 1), 1)
LOG.info("create backup for backupid:%s,flavor info disk:%s,ram:%s" % (backup_id,disk,ram))
timeout = disk * backup_timeout_pergb
set_blkiotune(context,instance_tasks.id)
instance_tasks.create_backup(backup_id,type=instance_tasks.type)
try:
KSC_Backup.wait_backup(context, backup_id, timeout)
except Exception as e:
LOG.error("wait_backup error!backup_id:%s.exception:%s" % (backup_id,e))
pass
finally:
set_blkiotune(context,instance_tasks.id,disk=disk,ram=ram)
