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to compress bin data in temprary directory #47

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merged 1 commit into from
Dec 16, 2024

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smellman
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@smellman smellman commented Dec 16, 2024

What I did(変更内容)

  • to compress bin files in temporary directory, to economize storage output.

Notes(連絡事項)

None / なし

Summary by CodeRabbit

  • 新機能

    • 圧縮データの処理を改善するために、新しい圧縮および解凍メカニズムを導入しました。
    • 大規模データセットの書き込みパフォーマンスを向上させるための並列圧縮機能を追加しました。
  • バグ修正

    • 圧縮ファイルの読み取り効率を向上させるために、読み取りメカニズムを更新しました。

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coderabbitai bot commented Dec 16, 2024

Walkthrough

このプルリクエストは、app/src/main.rsファイルにおける圧縮データ処理の改善に焦点を当てています。gzpライブラリを使用して、ポイントデータの書き込みと読み取りプロセスを最適化しています。BufWriterBufReaderが、それぞれParCompress<Mgzip>MgzipSyncReaderに置き換えられ、並列圧縮と効率的な圧縮データの処理が可能になりました。

Changes

ファイル 変更の概要
app/src/main.rs - write_points_to_tile関数でParCompressBuilderを使用した並列圧縮の導入
- read_points_from_tile関数でMgzipSyncReaderによる圧縮データの効率的な読み取り
- read_run_file関数の読み取り方法をMgzipSyncReaderに変更

Poem

🐰 圧縮の魔法、データは軽く
バイトたちは踊る、並列の夢
ギザギザの波に、効率の歌
読み書き加速、ウサギの技
コードは軽やかに、圧縮の翼 🚀


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Actionable comments posted: 2

🔭 Outside diff range comments (2)
app/src/main.rs (2)

Line range hint 302-308: エラー型Infallibleの使用は適切ではありません

この関数ではファイルの読み込みやデコード時にエラーが発生する可能性がありますが、エラー型としてInfallibleを使用しています。Infallibleはエラーが起こり得ない場合に使用する型であり、ここでは適切ではありません。適切なエラー型(例えばstd::io::Error)を使用し、unwrap()の代わりに?演算子でエラーを伝播させてください。

提案するコード修正:

-    fn read_run_file(path: PathBuf) -> Result<Vec<(SortKey, Point)>, Infallible> {
+    fn read_run_file(path: PathBuf) -> std::io::Result<Vec<(SortKey, Point)>> {
         let file = File::open(path)?;
         let mut buf_reader = MgzipSyncReader::new(file);
         let mut buffer = Vec::new();
-        buf_reader.read_to_end(&mut buffer).unwrap();
-        let data: Vec<(SortKey, Point)> = bitcode::decode(&buffer[..]).unwrap();
+        buf_reader.read_to_end(&mut buffer)?;
+        let data: Vec<(SortKey, Point)> = bitcode::decode(&buffer[..]).map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?;
         Ok(data)
     }

Line range hint 494-500: unwrap()の使用を避け、エラーを適切に処理してください

fs::create_dir_all(tile_path.parent().unwrap()).unwrap();fs::File::create(tile_path).unwrap();writer.write_all(&encoded).unwrap();unwrap()を使用しています。これらはエラー発生時にパニックを引き起こす可能性があります。?演算子を使用し、エラーを適切に伝播させてください。また、tile_path.parent().unwrap()Noneの可能性があるため、適切にエラーハンドリングを行う必要があります。

提案するコード修正:

-    fs::create_dir_all(tile_path.parent().unwrap()).unwrap();
+    let parent_dir = tile_path.parent().ok_or_else(|| std::io::Error::new(std::io::ErrorKind::Other, "No parent directory"))?;
+    fs::create_dir_all(parent_dir)?;

-    let file = fs::File::create(tile_path).unwrap();
+    let file = fs::File::create(tile_path)?;

-    writer.write_all(&encoded).unwrap();
+    writer.write_all(&encoded)?;
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8177220 and 47f61cc.

⛔ Files ignored due to path filters (2)
  • Cargo.lock is excluded by !**/*.lock, !**/*.lock
  • app/Cargo.toml is excluded by !**/*.toml
📒 Files selected for processing (1)
  • app/src/main.rs (7 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
app/src/main.rs (1)

Pattern **/*.rs: - avoid unnecessary clone

🔇 Additional comments (3)
app/src/main.rs (3)

5-5: std::io::ReadWriteのインポート

ReadWriteトレイトのインポートが適切に行われています。


19-20: gzpライブラリのインポート

MgzipSyncReaderParCompressParCompressBuilderのインポートが正しく追加されています。


119-119: 圧縮処理の実装が適切です

ParCompress<Mgzip>を使用して並列圧縮を行う実装は、パフォーマンス向上に寄与します。

Comment on lines +441 to 444
let mut writer: ParCompress<Mgzip> = ParCompressBuilder::new().from_writer(file);

let encoded = bitcode::encode(&keyed_points);
writer.write_all(&encoded).unwrap();
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🛠️ Refactor suggestion

⚠️ Potential issue

unwrap()の使用を避け、エラーを適切に処理してください

fs::File::create(run_file_path).unwrap();writer.write_all(&encoded).unwrap();unwrap()を使用しています。エラーが発生した場合にパニックを引き起こす可能性があるため、?演算子を使用してエラーを伝播させるか、エラーを明示的に処理してください。

提案するコード修正:

-    let file = fs::File::create(run_file_path).unwrap();
+    let file = fs::File::create(run_file_path)?;

-    writer.write_all(&encoded).unwrap();
+    writer.write_all(&encoded)?;

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines +128 to +132
let file = File::open(file_path)?;
let mut buf_reader = MgzipSyncReader::new(file);
let mut buffer = Vec::new();
buf_reader.read_to_end(&mut buffer).unwrap();
let points = bitcode::decode(&buffer).unwrap();
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🛠️ Refactor suggestion

⚠️ Potential issue

unwrap()の使用を避け、エラーを適切に処理してください

buf_reader.read_to_end(&mut buffer).unwrap();let points = bitcode::decode(&buffer).unwrap();unwrap()を使用しています。これらはエラー発生時にパニックを引き起こす可能性があります。?演算子を使用してエラーを伝播させるか、エラーを明示的に処理してください。また、bitcode::decodeのエラー型がstd::io::Errorと異なる場合は、エラーの型変換が必要です。

提案するコード修正:

             let mut buffer = Vec::new();
-            buf_reader.read_to_end(&mut buffer).unwrap();
-            let points = bitcode::decode(&buffer).unwrap();
+            buf_reader.read_to_end(&mut buffer)?;
+            let points = bitcode::decode(&buffer).map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?;
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
let file = File::open(file_path)?;
let mut buf_reader = MgzipSyncReader::new(file);
let mut buffer = Vec::new();
buf_reader.read_to_end(&mut buffer).unwrap();
let points = bitcode::decode(&buffer).unwrap();
let file = File::open(file_path)?;
let mut buf_reader = MgzipSyncReader::new(file);
let mut buffer = Vec::new();
buf_reader.read_to_end(&mut buffer)?;
let points = bitcode::decode(&buffer).map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?;

@nokonoko1203
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@smellman LGTM!
Thank you for your contribution!

@nokonoko1203 nokonoko1203 merged commit ac68e35 into MIERUNE:main Dec 16, 2024
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2 participants