public function deleteRRAFiles() { $node = $this->getEtvaNode(); $node_uuid = $node->getUuid(); $cpu_per_rra = new ServerCpuUsageRRA($node_uuid, $this->getUuid(), false); $cpu_per_rra->delete(); $server_memory_per_rra = new ServerMemoryUsageRRA($node_uuid, $this->getUuid(), false); $server_memory_per_rra->delete(); $server_memory = new ServerMemoryRRA($node_uuid, $this->getUuid(), false); $server_memory->delete(); }