| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * These .proto interfaces are private and stable. |
| * Please see http://wiki.apache.org/hadoop/Compatibility |
| * for what changes are allowed for a *stable* .proto interface. |
| */ |
| syntax = "proto2"; |
| option java_package = "org.apache.hadoop.hdfs.protocol.proto"; |
| option java_outer_classname = "DatanodeLifelineProtocolProtos"; |
| option java_generic_services = true; |
| option java_generate_equals_and_hash = true; |
| package hadoop.hdfs.datanodelifeline; |
| |
| import "DatanodeProtocol.proto"; |
| |
| // The lifeline protocol does not use a new request message type. Instead, it |
| // reuses the existing heartbeat request message. |
| |
| // Unlike heartbeats, the response is empty. There is no command dispatch. |
| message LifelineResponseProto { |
| } |
| |
| service DatanodeLifelineProtocolService { |
| rpc sendLifeline(hadoop.hdfs.datanode.HeartbeatRequestProto) |
| returns(LifelineResponseProto); |
| } |
