risingwave_meta/hummock/compaction/selector/
ttl_selector.rs

1//  Copyright 2025 RisingWave Labs
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//
15// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
16// This source code is licensed under both the GPLv2 (found in the
17// COPYING file in the root directory) and Apache 2.0 License
18// (found in the LICENSE.Apache file in the root directory).
19
20use std::collections::HashMap;
21
22use risingwave_hummock_sdk::HummockCompactionTaskId;
23use risingwave_pb::hummock::compact_task;
24
25use super::{CompactionSelector, DynamicLevelSelectorCore};
26use crate::hummock::compaction::picker::{TtlPickerState, TtlReclaimCompactionPicker};
27use crate::hummock::compaction::selector::CompactionSelectorContext;
28use crate::hummock::compaction::{CompactionTask, create_compaction_task};
29
30#[derive(Default)]
31pub struct TtlCompactionSelector {
32    state: HashMap<u64, TtlPickerState>,
33}
34
35impl CompactionSelector for TtlCompactionSelector {
36    fn pick_compaction(
37        &mut self,
38        task_id: HummockCompactionTaskId,
39        context: CompactionSelectorContext<'_>,
40    ) -> Option<CompactionTask> {
41        let CompactionSelectorContext {
42            group,
43            levels,
44            level_handlers,
45            table_id_to_options,
46            developer_config,
47            ..
48        } = context;
49        let dynamic_level_core =
50            DynamicLevelSelectorCore::new(group.compaction_config.clone(), developer_config);
51        let ctx = dynamic_level_core.calculate_level_base_size(levels);
52        let picker = TtlReclaimCompactionPicker::new(table_id_to_options);
53        let state = self.state.entry(group.group_id).or_default();
54        let compaction_input = picker.pick_compaction(levels, level_handlers, state)?;
55        compaction_input.add_pending_task(task_id, level_handlers);
56
57        Some(create_compaction_task(
58            group.compaction_config.as_ref(),
59            compaction_input,
60            ctx.base_level,
61            self.task_type(),
62        ))
63    }
64
65    fn name(&self) -> &'static str {
66        "TtlCompaction"
67    }
68
69    fn task_type(&self) -> compact_task::TaskType {
70        compact_task::TaskType::Ttl
71    }
72}
risingwave_meta/hummock/compaction/selector/ttl_selector.rs

risingwave_meta/hummock/compaction/selector/
ttl_selector.rs
