jiacai2050 commented on code in PR #1584: URL: https://github.com/apache/horaedb/pull/1584#discussion_r1824087516
########## src/tools/src/bin/wal-reader.rs: ########## @@ -0,0 +1,165 @@ +// 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. + +//! A cli to query region segment meta + +use std::{ + fs::{self}, + sync::Arc, +}; + +use clap::Parser; +use runtime::Builder; +use tabled::{Table, Tabled}; +use wal::local_storage_impl::segment::{Region, RegionManager, SegmentTableMeta}; + +#[derive(Parser, Debug)] +#[clap(author, version, about = "A command line tool to read and display WAL (Write-Ahead Log) segment metadata", long_about = None)] +struct Args { + /// Type of WAL storage + #[clap(short, long, default_value = "local")] + r#type: String, + + /// Data directory path + #[clap(short, long, default_value = "/tmp/horaedb/wal")] + data_dir: String, + + /// Region id + #[clap(short = 'r', long, default_value = None)] + region_id: Option<u64>, + + /// Segment id + #[clap(short = 's', long, default_value = None)] + segment_id: Option<u64>, + + /// Table id + #[clap(long, default_value = None)] + table_id: Option<u64>, + + /// Segment size in bytes + #[clap(short = 'z', long, default_value = "67108864")] // 64 * 1024 * 1024 + segment_size: usize, +} + +#[derive(Tabled)] +struct SegmentInfo { + segment_id: u64, + min_seq: u64, + max_seq: u64, + version: u8, + current_size: usize, + segment_size: usize, + number_of_records: usize, +} + +#[derive(Tabled)] +struct TableInfo { + table_id: u64, + min_seq: u64, + max_seq: u64, +} + +impl SegmentInfo { + fn load(stm: &SegmentTableMeta) -> Self { + Self { + segment_id: stm.id, + min_seq: stm.min_seq, + max_seq: stm.max_seq, + version: stm.version, + current_size: stm.current_size, + segment_size: stm.segment_size, + number_of_records: stm.number_of_records, + } + } +} + +impl TableInfo { + fn load(stm: &SegmentTableMeta, table_id: &Option<u64>) -> Vec<TableInfo> { + let mut datas = Vec::new(); + for (t_id, (min_seq, max_seq)) in stm.tables.iter() { + if table_id.is_some() && table_id.unwrap() != *t_id { + continue; + } + datas.push(TableInfo { + table_id: *t_id, + min_seq: *min_seq, + max_seq: *max_seq, + }); + } + datas + } +} + +fn region_meta_dump(region: Arc<Region>, table_id: &Option<u64>) { + let segments = region.meta(); + for stm in segments.iter() { + println!("{}", "-".repeat(94)); + let pretty_segment = Table::new([SegmentInfo::load(stm)]); + println!("{}", pretty_segment); + let pretty_table = Table::new(TableInfo::load(stm, table_id)); + println!("{}", pretty_table); + } +} + +fn pretty_error_then_exit(err_msg: &str) { + eprintln!("\x1b[31m{}\x1b[0m", err_msg); + std::process::exit(1); +} + +fn main() { + let args = Args::parse(); + println!("WAL type: {}", args.r#type); + println!("Data directory: {}", args.data_dir); + + if args.r#type.to_lowercase() != "local" { + pretty_error_then_exit("Error: Only local WAL type is supported"); + } + + if !std::path::Path::new(&args.data_dir).is_dir() { + pretty_error_then_exit( + format!("Error: Data directory '{}' does not exist", &args.data_dir).as_str(), + ); + } + + let runtime = Arc::new(Builder::default().build().unwrap()); + let region_manager = + RegionManager::new(args.data_dir.clone(), 32, args.segment_size, runtime).unwrap(); Review Comment: segment_size is only used when create new segment, so I guess we can pass a fixed one here. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
