hadoop/hadoop-hdfs-project/hadoop-hdfs-client/src/main/proto/erasurecoding.proto

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Protocol Buffer

/**
* 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.
*/
option java_package = "org.apache.hadoop.hdfs.protocol.proto";
option java_outer_classname = "ErasureCodingProtos";
option java_generate_equals_and_hash = true;
package hadoop.hdfs;
import "hdfs.proto";
message SetErasureCodingPolicyRequestProto {
required string src = 1;
optional string ecPolicyName = 2;
}
message SetErasureCodingPolicyResponseProto {
}
message GetErasureCodingPoliciesRequestProto { // void request
}
message GetErasureCodingPoliciesResponseProto {
repeated ErasureCodingPolicyProto ecPolicies = 1;
}
message GetErasureCodingCodecsRequestProto { // void request
}
message GetErasureCodingCodecsResponseProto {
repeated CodecProto codec = 1;
}
message GetErasureCodingPolicyRequestProto {
required string src = 1; // path to get the policy info
}
message GetErasureCodingPolicyResponseProto {
optional ErasureCodingPolicyProto ecPolicy = 1;
}
message AddErasureCodingPoliciesRequestProto {
repeated ErasureCodingPolicyProto ecPolicies = 1;
}
message AddErasureCodingPoliciesResponseProto {
repeated AddErasureCodingPolicyResponseProto responses = 1;
}
message RemoveErasureCodingPolicyRequestProto {
required string ecPolicyName = 1;
}
message RemoveErasureCodingPolicyResponseProto {
}
message EnableErasureCodingPolicyRequestProto {
required string ecPolicyName = 1;
}
message EnableErasureCodingPolicyResponseProto {
}
message DisableErasureCodingPolicyRequestProto {
required string ecPolicyName = 1;
}
message DisableErasureCodingPolicyResponseProto {
}
message UnsetErasureCodingPolicyRequestProto {
required string src = 1;
}
message UnsetErasureCodingPolicyResponseProto {
}
/**
* Block erasure coding reconstruction info
*/
message BlockECReconstructionInfoProto {
required ExtendedBlockProto block = 1;
required DatanodeInfosProto sourceDnInfos = 2;
required DatanodeInfosProto targetDnInfos = 3;
required StorageUuidsProto targetStorageUuids = 4;
required StorageTypesProto targetStorageTypes = 5;
required bytes liveBlockIndices = 6;
required ErasureCodingPolicyProto ecPolicy = 7;
}
/**
* Codec and it's corresponding coders
*/
message CodecProto {
required string codec = 1;
required string coders = 2;
}