meta_srv/gc.rs
1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::collections::{HashMap, HashSet};
16
17use common_meta::peer::Peer;
18use store_api::storage::RegionId;
19
20mod candidate;
21mod ctx;
22mod dropped;
23mod handler;
24#[cfg(test)]
25mod mock;
26mod options;
27mod procedure;
28mod scheduler;
29mod tracker;
30mod util;
31
32pub use options::GcSchedulerOptions;
33pub use procedure::BatchGcProcedure;
34pub use scheduler::{Event, GcScheduler, GcTickerRef};
35
36/// Mapping from region ID to its associated peers (leader and followers).
37pub type Region2Peers = HashMap<RegionId, (Peer, Vec<Peer>)>;
38
39/// Mapping from leader peer to the set of region IDs it is responsible for.
40pub(crate) type Peer2Regions = HashMap<Peer, HashSet<RegionId>>;