74 lines
2.4 KiB
Protocol Buffer
74 lines
2.4 KiB
Protocol Buffer
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// This file contains protocol buffers that are used to reconfigure NameNode
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// and DataNode by HDFS admin.
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option java_package = "org.apache.hadoop.hdfs.protocol.proto";
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option java_outer_classname = "ReconfigurationProtocolProtos";
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option java_generic_services = true;
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option java_generate_equals_and_hash = true;
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package hadoop.hdfs;
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/** Asks NN/DN to reload configuration file. */
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message StartReconfigurationRequestProto {
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}
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message StartReconfigurationResponseProto {
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}
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/** Query the running status of reconfiguration process */
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message GetReconfigurationStatusRequestProto {
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}
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message GetReconfigurationStatusConfigChangeProto {
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required string name = 1;
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required string oldValue = 2;
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optional string newValue = 3;
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optional string errorMessage = 4; // It is empty if success.
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}
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message GetReconfigurationStatusResponseProto {
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required int64 startTime = 1;
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optional int64 endTime = 2;
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repeated GetReconfigurationStatusConfigChangeProto changes = 3;
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}
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/** Query the reconfigurable properties on NN/DN. */
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message ListReconfigurablePropertiesRequestProto {
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}
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message ListReconfigurablePropertiesResponseProto {
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repeated string name = 1;
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}
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/**
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* Protocol used from client to the NN/DN.
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* See the request and response for details of rpc call.
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*/
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service ReconfigurationProtocolService {
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rpc getReconfigurationStatus(GetReconfigurationStatusRequestProto)
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returns(GetReconfigurationStatusResponseProto);
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rpc startReconfiguration(StartReconfigurationRequestProto)
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returns(StartReconfigurationResponseProto);
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rpc listReconfigurableProperties(
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ListReconfigurablePropertiesRequestProto)
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returns(ListReconfigurablePropertiesResponseProto);
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} |