milvus/internal/proto/streaming.proto

syntax = "proto3";

package milvus.proto.log;

option go_package = "github.com/milvus-io/milvus/internal/proto/streamingpb";

import "milvus.proto";
import "google/protobuf/empty.proto";

//
// Common
//

// MessageID is the unique identifier of a message.
message MessageID {
    bytes id = 1;
}

// Message is the basic unit of communication between publisher and consumer.
message Message {
    bytes payload = 1; // message body
    map<string, string> properties = 2; // message properties
}

// PChannelInfo is the information of a pchannel info.
message PChannelInfo {
    string name = 1; // channel name
    int64 term = 2; // A monotonic increasing term, every time the channel is recovered or moved to another streamingnode, the term will increase by meta server.
    int64 serverID = 3; // The log node id address of the channel.
    repeated VChannelInfo vChannelInfos = 4; // PChannel related vchannels.
}

// VChannelInfo is the information of a vchannel info.
message VChannelInfo {
    string name = 1;
}

message DeliverPolicy {
    oneof policy {
        google.protobuf.Empty all = 1; // deliver all messages.
        google.protobuf.Empty latest = 2; // deliver the latest message.
        MessageID startFrom = 3; // deliver message from this message id. [startFrom, ...]
        MessageID startAfter = 4; // deliver message after this message id. (startAfter, ...]
    }
}