Weny Xu
f82201d712
* feat: add ddl task service * chore: apply suggestions from CR * chore: add path to build.rs
106 lines
2.4 KiB
Protocol Buffer
106 lines
2.4 KiB
Protocol Buffer
// Copyright 2023 Greptime Team
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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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syntax = "proto3";
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package greptime.v1.meta;
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option go_package = "github.com/GreptimeTeam/greptime-proto/go/greptime/v1/meta";
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import "greptime/v1/meta/common.proto";
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service Router {
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// Fetch routing information for tables. The smallest unit is the complete
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// routing information(all regions) of a table.
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//
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// ```text
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// table_1
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// table_name
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// table_schema
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// regions
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// region_1
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// leader_peer
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// follower_peer_1, follower_peer_2
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// region_2
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// leader_peer
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// follower_peer_1, follower_peer_2, follower_peer_3
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// region_xxx
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// table_2
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// ...
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// ```
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//
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rpc Route(RouteRequest) returns (RouteResponse) {}
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rpc Delete(DeleteRequest) returns (RouteResponse) {}
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}
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message RouteRequest {
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RequestHeader header = 1;
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repeated TableName table_names = 2;
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}
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message DeleteRequest {
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RequestHeader header = 1;
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TableName table_name = 2;
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}
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message RouteResponse {
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ResponseHeader header = 1;
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repeated Peer peers = 2;
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repeated TableRoute table_routes = 3;
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}
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message TableRoute {
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Table table = 1;
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repeated RegionRoute region_routes = 2;
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}
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message RegionRoute {
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Region region = 1;
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// single leader node for write task
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uint64 leader_peer_index = 2;
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// multiple follower nodes for read task
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repeated uint64 follower_peer_indexes = 3;
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}
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message Table {
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uint64 id = 1;
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TableName table_name = 2;
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bytes table_schema = 3;
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}
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message Region {
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// TODO(LFC): Maybe use message RegionNumber?
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uint64 id = 1;
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string name = 2;
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Partition partition = 3;
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map<string, string> attrs = 100;
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}
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// PARTITION `region_name` VALUES LESS THAN (value_list)
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message Partition {
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repeated bytes column_list = 1;
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repeated bytes value_list = 2;
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}
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// This message is only for saving into store.
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message TableRouteValue {
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repeated Peer peers = 1;
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TableRoute table_route = 2;
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}
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