fix backups

* pluralize variable `backup_folder` -> `backups_folder`
* change env case `MEILI_backup_folder` -> `MEILI_BACKUPS_FOLDER`
* add miliseconds to backup ID to reduce colisions
* fix forgoten stats synchronization

.github/workflows/test.yml

@@ -30,11 +30,11 @@ jobs:
       with:
         command: test
         args: --locked --release
-    - name: Run cargo test backup
+    - name: Run cargo test dump
       uses: actions-rs/cargo@v1
       with:
         command: test
-        args: backup --locked --release -- --ignored --test-threads 1
+        args: dump --locked --release -- --ignored --test-threads 1
     - name: Run cargo clippy
       uses: actions-rs/cargo@v1
       with:

CHANGELOG.md

@@ -1,6 +1,6 @@
 ## v0.15.0
 
-  - Backups (#887)
+  - Dumps (#887)
   - Update actix-web dependency to 3.0.0 (#963)
   - Consider an empty query to be a placeholder search (#916)
 

meilisearch-error/src/lib.rs

@@ -77,8 +77,8 @@ pub enum Code {
     SearchDocuments,
     UnsupportedMediaType,
 
-    BackupAlreadyInProgress,
-    BackupProcessFailed,
+    DumpAlreadyInProgress,
+    DumpProcessFailed,
 }
 
 impl Code {
@@ -126,9 +126,9 @@ impl Code {
             SearchDocuments => ErrCode::internal("search_error", StatusCode::BAD_REQUEST),
             UnsupportedMediaType => ErrCode::invalid("unsupported_media_type", StatusCode::UNSUPPORTED_MEDIA_TYPE),
 
-            // error related to backup
-            BackupAlreadyInProgress => ErrCode::invalid("backup_already_in_progress", StatusCode::CONFLICT),
-            BackupProcessFailed => ErrCode::internal("backup_process_failed", StatusCode::INTERNAL_SERVER_ERROR),
+            // error related to dump
+            DumpAlreadyInProgress => ErrCode::invalid("dump_already_in_progress", StatusCode::CONFLICT),
+            DumpProcessFailed => ErrCode::internal("dump_process_failed", StatusCode::INTERNAL_SERVER_ERROR),
         }
     }
 

meilisearch-http/src/data.rs

@@ -26,8 +26,8 @@ impl Deref for Data {
 pub struct DataInner {
     pub db: Arc<Database>,
     pub db_path: String,
-    pub backup_folder: PathBuf,
-    pub backup_batch_size: usize,
+    pub dumps_folder: PathBuf,
+    pub dump_batch_size: usize,
     pub api_keys: ApiKeys,
     pub server_pid: u32,
     pub http_payload_size_limit: usize,
@@ -60,8 +60,8 @@ impl ApiKeys {
 impl Data {
     pub fn new(opt: Opt) -> Result<Data, Box<dyn Error>> {
         let db_path = opt.db_path.clone();
-        let backup_folder = opt.backup_folder.clone();
-        let backup_batch_size = opt.backup_batch_size;
+        let dumps_folder = opt.dumps_folder.clone();
+        let dump_batch_size = opt.dump_batch_size;
         let server_pid = std::process::id();
 
         let db_opt = DatabaseOptions {
@@ -84,8 +84,8 @@ impl Data {
         let inner_data = DataInner {
             db: db.clone(),
             db_path,
-            backup_folder,
-            backup_batch_size,
+            dumps_folder,
+            dump_batch_size,
             api_keys,
             server_pid,
             http_payload_size_limit,

meilisearch-http/src/dump.rs

@@ -7,7 +7,7 @@ use std::thread;
 use actix_web::web;
 use chrono::offset::Utc;
 use indexmap::IndexMap;
-use log::error;
+use log::{error, info};
 use meilisearch_core::{MainWriter, MainReader, UpdateReader};
 use meilisearch_core::settings::Settings;
 use meilisearch_core::update::{apply_settings_update, apply_documents_addition};
@@ -21,37 +21,37 @@ use crate::helpers::compression;
 use crate::routes::index;
 use crate::routes::index::IndexResponse;
 
-// Mutex to share backup progress.
-static BACKUP_INFO: Lazy<Mutex<Option<BackupInfo>>> = Lazy::new(Mutex::default);
+// Mutex to share dump progress.
+static DUMP_INFO: Lazy<Mutex<Option<DumpInfo>>> = Lazy::new(Mutex::default);
 
 #[derive(Debug, Serialize, Deserialize, Copy, Clone)]
-enum BackupVersion {
+enum DumpVersion {
     V1,
 }
 
-impl BackupVersion {
+impl DumpVersion {
     const CURRENT: Self = Self::V1;
 }
 
 #[derive(Debug, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
-pub struct BackupMetadata {
+pub struct DumpMetadata {
     indexes: Vec<crate::routes::index::IndexResponse>,
     db_version: String,
-    backup_version: BackupVersion,
+    dump_version: DumpVersion,
 }
 
-impl BackupMetadata {
-    /// Create a BackupMetadata with the current backup version of meilisearch.
+impl DumpMetadata {
+    /// Create a DumpMetadata with the current dump version of meilisearch.
     pub fn new(indexes: Vec<crate::routes::index::IndexResponse>, db_version: String) -> Self {
-        BackupMetadata {
+        DumpMetadata {
             indexes,
             db_version,
-            backup_version: BackupVersion::CURRENT,
+            dump_version: DumpVersion::CURRENT,
         }
     }
 
-    /// Extract BackupMetadata from `metadata.json` file present at provided `folder_path`
+    /// Extract DumpMetadata from `metadata.json` file present at provided `folder_path`
     fn from_path(folder_path: &Path) -> Result<Self, Error> {
         let path = folder_path.join("metadata.json");
         let file = File::open(path)?;
@@ -61,7 +61,7 @@ impl BackupMetadata {
         Ok(metadata)
     }
 
-    /// Write BackupMetadata in `metadata.json` file at provided `folder_path`
+    /// Write DumpMetadata in `metadata.json` file at provided `folder_path`
     fn to_path(&self, folder_path: &Path) -> Result<(), Error> {
         let path = folder_path.join("metadata.json");
         let file = File::create(path)?;
@@ -92,10 +92,10 @@ fn settings_to_path(settings: &Settings, folder_path: &Path) -> Result<(), Error
     Ok(())
 }
 
-/// Import settings and documents of a backup with version `BackupVersion::V1` in specified index.
+/// Import settings and documents of a dump with version `DumpVersion::V1` in specified index.
 fn import_index_v1(
     data: &Data,
-    backup_folder: &Path,
+    dumps_folder: &Path,
     index_uid: &str,
     document_batch_size: usize,
     write_txn: &mut MainWriter,
@@ -107,12 +107,12 @@ fn import_index_v1(
         .open_index(index_uid)
         .ok_or(Error::index_not_found(index_uid))?;
 
-    // index folder path in  backup folder
-    let index_path = &backup_folder.join(index_uid);
+    // index folder path in  dump folder
+    let index_path = &dumps_folder.join(index_uid);
 
     // extract `settings.json` file and import content
     let settings = settings_from_path(&index_path)?;
-    let settings = settings.to_update().or_else(|_e| Err(Error::backup_failed()))?;
+    let settings = settings.to_update().or_else(|_e| Err(Error::dump_failed()))?;
     apply_settings_update(write_txn, &index, settings)?;
 
     // create iterator over documents in `documents.jsonl` to make batch importation
@@ -143,28 +143,35 @@ fn import_index_v1(
         apply_documents_addition(write_txn, &index, values)?;
     }
 
+    // sync index information: stats, updated_at, last_update
+    if let Err(e) = crate::index_update_callback_txn(index, index_uid, data, write_txn) {
+        return Err(Error::Internal(e));
+    }
+
     Ok(())
 }
 
-/// Import backup from `backup_folder` in database.
-pub fn import_backup(
+/// Import dump from `dump_path` in database.
+pub fn import_dump(
     data: &Data,
-    backup_folder: &Path,
+    dump_path: &Path,
     document_batch_size: usize,
 ) -> Result<(), Error> {
+    info!("Importing dump from {:?}...", dump_path);
+
     // create a temporary directory
     let tmp_dir = TempDir::new()?;
     let tmp_dir_path = tmp_dir.path();
 
-    // extract backup in temporary directory
-    compression::from_tar_gz(backup_folder, tmp_dir_path)?;
+    // extract dump in temporary directory
+    compression::from_tar_gz(dump_path, tmp_dir_path)?;
 
-    // read backup metadata
-    let metadata = BackupMetadata::from_path(&tmp_dir_path)?;
+    // read dump metadata
+    let metadata = DumpMetadata::from_path(&tmp_dir_path)?;
 
-    // choose importation function from BackupVersion of metadata
-    let import_index = match metadata.backup_version {
-        BackupVersion::V1 => import_index_v1,
+    // choose importation function from DumpVersion of metadata
+    let import_index = match metadata.dump_version {
+        DumpVersion::V1 => import_index_v1,
     };
 
     // remove indexes which have same `uid` than indexes to import and create empty indexes
@@ -184,78 +191,79 @@ pub fn import_backup(
         Ok(())
     })?;
 
+    info!("Dump importation from {:?} succeed", dump_path);
     Ok(())
 }
 
 #[derive(Debug, Serialize, Deserialize, PartialEq, Clone)]
 #[serde(rename_all = "snake_case")]
-pub enum BackupStatus {
+pub enum DumpStatus {
     Done,
     Processing,
-    BackupProcessFailed,
+    DumpProcessFailed,
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 #[serde(rename_all = "camelCase")]
-pub struct BackupInfo {
+pub struct DumpInfo {
     pub uid: String,
-    pub status: BackupStatus,
+    pub status: DumpStatus,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub error: Option<String>,
 }
 
-impl BackupInfo {
-    pub fn new(uid: String, status: BackupStatus) -> Self {
+impl DumpInfo {
+    pub fn new(uid: String, status: DumpStatus) -> Self {
         Self { uid, status, error: None }
     }
 
     pub fn with_error(mut self, error: String) -> Self {
-        self.status = BackupStatus::BackupProcessFailed;
+        self.status = DumpStatus::DumpProcessFailed;
         self.error = Some(error);
 
         self
     }
 
-    pub fn backup_already_in_progress(&self) -> bool {
-        self.status == BackupStatus::Processing
+    pub fn dump_already_in_progress(&self) -> bool {
+        self.status == DumpStatus::Processing
     }
 
     pub fn get_current() -> Option<Self> {
-        BACKUP_INFO.lock().unwrap().clone()
+        DUMP_INFO.lock().unwrap().clone()
     }
 
     pub fn set_current(&self) {
-        *BACKUP_INFO.lock().unwrap() = Some(self.clone());
+        *DUMP_INFO.lock().unwrap() = Some(self.clone());
     }
 }
 
 /// Generate uid from creation date
 fn generate_uid() -> String {
-    Utc::now().format("%Y%m%d-%H%M%S").to_string()
+    Utc::now().format("%Y%m%d-%H%M%S%3f").to_string()
 }
 
-/// Infer backup_folder from backup_uid
-pub fn compressed_backup_folder(backup_folder: &Path, backup_uid: &str) -> PathBuf {
-    backup_folder.join(format!("{}.tar.gz", backup_uid))
+/// Infer dumps_folder from dump_uid
+pub fn compressed_dumps_folder(dumps_folder: &Path, dump_uid: &str) -> PathBuf {
+    dumps_folder.join(format!("{}.tar.gz", dump_uid))
 }
 
-/// Write metadata in backup
-fn backup_metadata(data: &web::Data<Data>, folder_path: &Path, indexes: Vec<IndexResponse>) -> Result<(), Error> {
+/// Write metadata in dump
+fn dump_metadata(data: &web::Data<Data>, folder_path: &Path, indexes: Vec<IndexResponse>) -> Result<(), Error> {
     let (db_major, db_minor, db_patch) = data.db.version();
-    let metadata = BackupMetadata::new(indexes, format!("{}.{}.{}", db_major, db_minor, db_patch));
+    let metadata = DumpMetadata::new(indexes, format!("{}.{}.{}", db_major, db_minor, db_patch));
 
     metadata.to_path(folder_path)
 }
 
-/// Export settings of provided index in backup
-fn backup_index_settings(data: &web::Data<Data>, reader: &MainReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
+/// Export settings of provided index in dump
+fn dump_index_settings(data: &web::Data<Data>, reader: &MainReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
     let settings = crate::routes::setting::get_all_sync(data, reader, index_uid)?;
 
     settings_to_path(&settings, folder_path)
 }
 
-/// Export updates of provided index in backup
-fn backup_index_updates(data: &web::Data<Data>, reader: &UpdateReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
+/// Export updates of provided index in dump
+fn dump_index_updates(data: &web::Data<Data>, reader: &UpdateReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
     let updates_path = folder_path.join("updates.jsonl");
     let updates = crate::routes::index::get_all_updates_status_sync(data, reader, index_uid)?;
 
@@ -269,16 +277,16 @@ fn backup_index_updates(data: &web::Data<Data>, reader: &UpdateReader, folder_pa
     Ok(())
 }
 
-/// Export documents of provided index in backup
-fn backup_index_documents(data: &web::Data<Data>, reader: &MainReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
+/// Export documents of provided index in dump
+fn dump_index_documents(data: &web::Data<Data>, reader: &MainReader, folder_path: &Path, index_uid: &str) -> Result<(), Error> {
     let documents_path = folder_path.join("documents.jsonl");
     let file = File::create(documents_path)?;
-    let backup_batch_size = data.backup_batch_size;
+    let dump_batch_size = data.dump_batch_size;
 
     let mut offset = 0;
     loop {
-        let documents = crate::routes::document::get_all_documents_sync(data, reader, index_uid, offset, backup_batch_size, None)?;
-        if documents.len() == 0 { break; } else { offset += backup_batch_size; }
+        let documents = crate::routes::document::get_all_documents_sync(data, reader, index_uid, offset, dump_batch_size, None)?;
+        if documents.len() == 0 { break; } else { offset += dump_batch_size; }
 
         for document in documents {
             serde_json::to_writer(&file, &document)?;
@@ -290,20 +298,20 @@ fn backup_index_documents(data: &web::Data<Data>, reader: &MainReader, folder_pa
 }
 
 /// Write error with a context.
-fn fail_backup_process<E: std::error::Error>(backup_info: BackupInfo, context: &str, error: E) {
-        let error = format!("Something went wrong during backup process: {}; {}", context, error);
+fn fail_dump_process<E: std::error::Error>(dump_info: DumpInfo, context: &str, error: E) {
+        let error = format!("Something went wrong during dump process: {}; {}", context, error);
         
         error!("{}", &error);
-        backup_info.with_error(error).set_current();
+        dump_info.with_error(error).set_current();
 }
 
-/// Main function of backup.
-fn backup_process(data: web::Data<Data>, backup_folder: PathBuf, backup_info: BackupInfo) {
+/// Main function of dump.
+fn dump_process(data: web::Data<Data>, dumps_folder: PathBuf, dump_info: DumpInfo) {
     // open read transaction on Update
     let update_reader = match data.db.update_read_txn() {
         Ok(r) => r,
         Err(e) => {
-            fail_backup_process(backup_info, "creating RO transaction on updates", e);
+            fail_dump_process(dump_info, "creating RO transaction on updates", e);
             return ;
         }
     };
@@ -312,7 +320,7 @@ fn backup_process(data: web::Data<Data>, backup_folder: PathBuf, backup_info: Ba
     let main_reader = match data.db.main_read_txn() {
         Ok(r) => r,
         Err(e) => {
-            fail_backup_process(backup_info, "creating RO transaction on main", e);
+            fail_dump_process(dump_info, "creating RO transaction on main", e);
             return ;
         }
     };
@@ -321,7 +329,7 @@ fn backup_process(data: web::Data<Data>, backup_folder: PathBuf, backup_info: Ba
     let tmp_dir = match TempDir::new() {
         Ok(tmp_dir) => tmp_dir,
         Err(e) => {
-            fail_backup_process(backup_info, "creating temporary directory", e);
+            fail_dump_process(dump_info, "creating temporary directory", e);
             return ;
         }
     };
@@ -331,14 +339,14 @@ fn backup_process(data: web::Data<Data>, backup_folder: PathBuf, backup_info: Ba
     let indexes = match crate::routes::index::list_indexes_sync(&data, &main_reader) {
         Ok(indexes) => indexes,
         Err(e) => {
-            fail_backup_process(backup_info, "listing indexes", e);
+            fail_dump_process(dump_info, "listing indexes", e);
             return ;
         }
     };
 
     // create metadata
-    if let Err(e) = backup_metadata(&data, &tmp_dir_path, indexes.clone()) {
-        fail_backup_process(backup_info, "generating metadata", e);
+    if let Err(e) = dump_metadata(&data, &tmp_dir_path, indexes.clone()) {
+        fail_dump_process(dump_info, "generating metadata", e);
         return ;
     }
 
@@ -348,68 +356,68 @@ fn backup_process(data: web::Data<Data>, backup_folder: PathBuf, backup_info: Ba
 
         // create index sub-dircetory
         if let Err(e) = create_dir_all(&index_path) {
-            fail_backup_process(backup_info, &format!("creating directory for index {}", &index.uid), e);
+            fail_dump_process(dump_info, &format!("creating directory for index {}", &index.uid), e);
             return ;
         }
 
         // export settings
-        if let Err(e) = backup_index_settings(&data, &main_reader, &index_path, &index.uid) {
-            fail_backup_process(backup_info, &format!("generating settings for index {}", &index.uid), e);
+        if let Err(e) = dump_index_settings(&data, &main_reader, &index_path, &index.uid) {
+            fail_dump_process(dump_info, &format!("generating settings for index {}", &index.uid), e);
             return ;
         }
 
         // export documents
-        if let Err(e) = backup_index_documents(&data, &main_reader, &index_path, &index.uid) {
-            fail_backup_process(backup_info, &format!("generating documents for index {}", &index.uid), e);
+        if let Err(e) = dump_index_documents(&data, &main_reader, &index_path, &index.uid) {
+            fail_dump_process(dump_info, &format!("generating documents for index {}", &index.uid), e);
             return ;
         }
 
         // export updates
-        if let Err(e) = backup_index_updates(&data, &update_reader, &index_path, &index.uid) {
-            fail_backup_process(backup_info, &format!("generating updates for index {}", &index.uid), e);
+        if let Err(e) = dump_index_updates(&data, &update_reader, &index_path, &index.uid) {
+            fail_dump_process(dump_info, &format!("generating updates for index {}", &index.uid), e);
             return ;
         }
     }
 
-    // compress backup in a file named `{backup_uid}.tar.gz` in `backup_folder`
-    if let Err(e) = crate::helpers::compression::to_tar_gz(&tmp_dir_path, &compressed_backup_folder(&backup_folder, &backup_info.uid)) {
-        fail_backup_process(backup_info, "compressing backup", e);
+    // compress dump in a file named `{dump_uid}.tar.gz` in `dumps_folder`
+    if let Err(e) = crate::helpers::compression::to_tar_gz(&tmp_dir_path, &compressed_dumps_folder(&dumps_folder, &dump_info.uid)) {
+        fail_dump_process(dump_info, "compressing dump", e);
         return ;
     }
 
-    // update backup info to `done`
-    let resume = BackupInfo::new(
-        backup_info.uid,
-        BackupStatus::Done
+    // update dump info to `done`
+    let resume = DumpInfo::new(
+        dump_info.uid,
+        DumpStatus::Done
     );
 
     resume.set_current();
 }
 
-pub fn init_backup_process(data: &web::Data<Data>, backup_folder: &Path) -> Result<BackupInfo, Error> {
-    create_dir_all(backup_folder).or(Err(Error::backup_failed()))?;
+pub fn init_dump_process(data: &web::Data<Data>, dumps_folder: &Path) -> Result<DumpInfo, Error> {
+    create_dir_all(dumps_folder).or(Err(Error::dump_failed()))?;
 
-    // check if a backup is already in progress
-    if let Some(resume) = BackupInfo::get_current() {
-        if resume.backup_already_in_progress() {
-            return Err(Error::backup_conflict())
+    // check if a dump is already in progress
+    if let Some(resume) = DumpInfo::get_current() {
+        if resume.dump_already_in_progress() {
+            return Err(Error::dump_conflict())
         }
     }
 
-    // generate a new backup info
-    let info = BackupInfo::new(
+    // generate a new dump info
+    let info = DumpInfo::new(
         generate_uid(),
-        BackupStatus::Processing
+        DumpStatus::Processing
     );
 
     info.set_current();
 
     let data = data.clone();
-    let backup_folder = backup_folder.to_path_buf();
+    let dumps_folder = dumps_folder.to_path_buf();
     let info_cloned = info.clone();
-    // run backup process in a new thread
+    // run dump process in a new thread
     thread::spawn(move || 
-        backup_process(data, backup_folder, info_cloned)
+        dump_process(data, dumps_folder, info_cloned)
     );
 
     Ok(info)

meilisearch-http/src/error.rs

@@ -53,8 +53,8 @@ pub enum Error {
     SearchDocuments(String),
     PayloadTooLarge,
     UnsupportedMediaType,
-    BackupAlreadyInProgress,
-    BackupProcessFailed,
+    DumpAlreadyInProgress,
+    DumpProcessFailed,
 }
 
 impl error::Error for Error {}
@@ -80,8 +80,8 @@ impl ErrorCode for Error {
             SearchDocuments(_) => Code::SearchDocuments,
             PayloadTooLarge => Code::PayloadTooLarge,
             UnsupportedMediaType => Code::UnsupportedMediaType,
-            BackupAlreadyInProgress => Code::BackupAlreadyInProgress,
-            BackupProcessFailed => Code::BackupProcessFailed,
+            DumpAlreadyInProgress => Code::DumpAlreadyInProgress,
+            DumpProcessFailed => Code::DumpProcessFailed,
         }
     }
 }
@@ -185,12 +185,12 @@ impl Error {
         Error::SearchDocuments(err.to_string())
     }
 
-    pub fn backup_conflict() -> Error {
-        Error::BackupAlreadyInProgress
+    pub fn dump_conflict() -> Error {
+        Error::DumpAlreadyInProgress
     }
 
-    pub fn backup_failed() -> Error {
-        Error::BackupProcessFailed
+    pub fn dump_failed() -> Error {
+        Error::DumpProcessFailed
     }
 }
 
@@ -214,8 +214,8 @@ impl fmt::Display for Error {
             Self::SearchDocuments(err) => write!(f, "Impossible to search documents; {}", err),
             Self::PayloadTooLarge => f.write_str("Payload too large"),
             Self::UnsupportedMediaType => f.write_str("Unsupported media type"),
-            Self::BackupAlreadyInProgress => f.write_str("Another backup is already in progress"),
-            Self::BackupProcessFailed => f.write_str("Backup process failed"),
+            Self::DumpAlreadyInProgress => f.write_str("Another dump is already in progress"),
+            Self::DumpProcessFailed => f.write_str("Dump process failed"),
         }
     }
 }

meilisearch-http/src/lib.rs

@@ -8,7 +8,7 @@ pub mod option;
 pub mod routes;
 pub mod analytics;
 pub mod snapshot;
-pub mod backup;
+pub mod dump;
 
 use actix_http::Error;
 use actix_service::ServiceFactory;
@@ -16,7 +16,7 @@ use actix_web::{dev, web, App};
 use chrono::Utc;
 use log::error;
 
-use meilisearch_core::ProcessedUpdateResult;
+use meilisearch_core::{Index, MainWriter, ProcessedUpdateResult};
 
 pub use option::Opt;
 pub use self::data::Data;
@@ -57,7 +57,23 @@ pub fn create_app(
         .configure(routes::health::services)
         .configure(routes::stats::services)
         .configure(routes::key::services)
-        .configure(routes::backup::services)
+        .configure(routes::dump::services)
+}
+
+pub fn index_update_callback_txn(index: Index, index_uid: &str, data: &Data, mut writer: &mut MainWriter) -> Result<(), String> {
+    if let Err(e) = data.db.compute_stats(&mut writer, index_uid) {
+        return Err(format!("Impossible to compute stats; {}", e));
+    }
+
+    if let Err(e) = data.db.set_last_update(&mut writer, &Utc::now()) {
+        return Err(format!("Impossible to update last_update; {}", e));
+    }
+
+    if let Err(e) = index.main.put_updated_at(&mut writer) {
+        return Err(format!("Impossible to update updated_at; {}", e));
+    }
+
+    Ok(())
 }
 
 pub fn index_update_callback(index_uid: &str, data: &Data, status: ProcessedUpdateResult) {
@@ -65,20 +81,13 @@ pub fn index_update_callback(index_uid: &str, data: &Data, status: ProcessedUpda
         return;
     }
 
-    if let Some(index) = data.db.open_index(&index_uid) {
+    if let Some(index) = data.db.open_index(index_uid) {
         let db = &data.db;
         let res = db.main_write::<_, _, ResponseError>(|mut writer| {
-            if let Err(e) = data.db.compute_stats(&mut writer, &index_uid) {
-                error!("Impossible to compute stats; {}", e)
+            if let Err(e) = index_update_callback_txn(index, index_uid, data, &mut writer) {
+                error!("{}", e);
             }
 
-            if let Err(e) = data.db.set_last_update(&mut writer, &Utc::now()) {
-                error!("Impossible to update last_update; {}", e)
-            }
-
-            if let Err(e) = index.main.put_updated_at(&mut writer) {
-                error!("Impossible to update updated_at; {}", e)
-            }
             Ok(())
         });
         match res {

meilisearch-http/src/main.rs

@@ -6,7 +6,7 @@ use main_error::MainError;
 use meilisearch_http::helpers::NormalizePath;
 use meilisearch_http::{create_app, index_update_callback, Data, Opt};
 use structopt::StructOpt;
-use meilisearch_http::{snapshot, backup};
+use meilisearch_http::{snapshot, dump};
 
 mod analytics;
 
@@ -70,8 +70,8 @@ async fn main() -> Result<(), MainError> {
     }));
 
 
-    if let Some(path) = &opt.import_backup {
-        backup::import_backup(&data, path, opt.backup_batch_size)?;
+    if let Some(path) = &opt.import_dump {
+        dump::import_dump(&data, path, opt.dump_batch_size)?;
     }
 
     if let Some(path) = &opt.snapshot_path {

meilisearch-http/src/option.rs

@@ -116,17 +116,17 @@ pub struct Opt {
     #[structopt(long, requires = "snapshot-path", env = "MEILI_SNAPSHOT_INTERVAL_SEC")]
     pub snapshot_interval_sec: Option<u64>,
 
-    /// Folder where backups are created when the backup route is called.
-    #[structopt(long, env = "MEILI_backup_folder", default_value = "backups/")]
-    pub backup_folder: PathBuf,
+    /// Folder where dumps are created when the dump route is called.
+    #[structopt(long, env = "MEILI_DUMPS_FOLDER", default_value = "dumps/")]
+    pub dumps_folder: PathBuf,
 
-    /// Import a backup from the specified path, must be a `.tar.gz` file.
-    #[structopt(long, env = "MEILI_IMPORT_BACKUP", conflicts_with = "load-from-snapshot")]
-    pub import_backup: Option<PathBuf>,
+    /// Import a dump from the specified path, must be a `.tar.gz` file.
+    #[structopt(long, env = "MEILI_IMPORT_DUMP", conflicts_with = "load-from-snapshot")]
+    pub import_dump: Option<PathBuf>,
 
-    /// The batch size used in the importation process, the bigger it is the faster the backup is created.
-    #[structopt(long, env = "MEILI_BACKUP_BATCH_SIZE", default_value = "1024")]
-    pub backup_batch_size: usize,
+    /// The batch size used in the importation process, the bigger it is the faster the dump is created.
+    #[structopt(long, env = "MEILI_DUMP_BATCH_SIZE", default_value = "1024")]
+    pub dump_batch_size: usize,
 }
 
 impl Opt {

meilisearch-http/src/routes/backup.rs

@@ -1,64 +0,0 @@
-use std::fs::File;
-use std::path::Path;
-
-use actix_web::{get, post};
-use actix_web::{HttpResponse, web};
-use serde::{Deserialize, Serialize};
-
-use crate::backup::{BackupInfo, BackupStatus, compressed_backup_folder, init_backup_process};
-use crate::Data;
-use crate::error::{Error, ResponseError};
-use crate::helpers::Authentication;
-
-pub fn services(cfg: &mut web::ServiceConfig) {
-    cfg.service(trigger_backup)
-        .service(get_backup_status);
-}
-
-#[post("/backups", wrap = "Authentication::Private")]
-async fn trigger_backup(
-    data: web::Data<Data>,
-) -> Result<HttpResponse, ResponseError> {
-    let backup_folder = Path::new(&data.backup_folder);
-    match init_backup_process(&data, &backup_folder) {
-        Ok(resume) => Ok(HttpResponse::Accepted().json(resume)),
-        Err(e) => Err(e.into())
-    }
-}
-
-#[derive(Debug, Serialize)]
-#[serde(rename_all = "camelCase")]
-struct BackupStatusResponse {
-    status: String,
-}
-
-#[derive(Deserialize)]
-struct BackupParam {
-    backup_uid: String,
-}
-
-#[get("/backups/{backup_uid}/status", wrap = "Authentication::Private")]
-async fn get_backup_status(
-    data: web::Data<Data>,
-    path: web::Path<BackupParam>,
-) -> Result<HttpResponse, ResponseError> {
-    let backup_folder = Path::new(&data.backup_folder);
-    let backup_uid = &path.backup_uid;
-
-    if let Some(resume) = BackupInfo::get_current() {
-        if &resume.uid == backup_uid {
-            return Ok(HttpResponse::Ok().json(resume));
-        }
-    }
-
-    if File::open(compressed_backup_folder(Path::new(backup_folder), backup_uid)).is_ok() {
-        let resume = BackupInfo::new(
-            backup_uid.into(),
-            BackupStatus::Done
-        );
-
-        Ok(HttpResponse::Ok().json(resume))
-    } else {
-        Err(Error::not_found("backup does not exist").into())
-    }
-}

meilisearch-http/src/routes/dump.rs

@@ -0,0 +1,64 @@
+use std::fs::File;
+use std::path::Path;
+
+use actix_web::{get, post};
+use actix_web::{HttpResponse, web};
+use serde::{Deserialize, Serialize};
+
+use crate::dump::{DumpInfo, DumpStatus, compressed_dumps_folder, init_dump_process};
+use crate::Data;
+use crate::error::{Error, ResponseError};
+use crate::helpers::Authentication;
+
+pub fn services(cfg: &mut web::ServiceConfig) {
+    cfg.service(trigger_dump)
+        .service(get_dump_status);
+}
+
+#[post("/dumps", wrap = "Authentication::Private")]
+async fn trigger_dump(
+    data: web::Data<Data>,
+) -> Result<HttpResponse, ResponseError> {
+    let dumps_folder = Path::new(&data.dumps_folder);
+    match init_dump_process(&data, &dumps_folder) {
+        Ok(resume) => Ok(HttpResponse::Accepted().json(resume)),
+        Err(e) => Err(e.into())
+    }
+}
+
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct DumpStatusResponse {
+    status: String,
+}
+
+#[derive(Deserialize)]
+struct DumpParam {
+    dump_uid: String,
+}
+
+#[get("/dumps/{dump_uid}/status", wrap = "Authentication::Private")]
+async fn get_dump_status(
+    data: web::Data<Data>,
+    path: web::Path<DumpParam>,
+) -> Result<HttpResponse, ResponseError> {
+    let dumps_folder = Path::new(&data.dumps_folder);
+    let dump_uid = &path.dump_uid;
+
+    if let Some(resume) = DumpInfo::get_current() {
+        if &resume.uid == dump_uid {
+            return Ok(HttpResponse::Ok().json(resume));
+        }
+    }
+
+    if File::open(compressed_dumps_folder(Path::new(dumps_folder), dump_uid)).is_ok() {
+        let resume = DumpInfo::new(
+            dump_uid.into(),
+            DumpStatus::Done
+        );
+
+        Ok(HttpResponse::Ok().json(resume))
+    } else {
+        Err(Error::not_found("dump does not exist").into())
+    }
+}

meilisearch-http/src/routes/mod.rs

@@ -10,7 +10,7 @@ pub mod setting;
 pub mod stats;
 pub mod stop_words;
 pub mod synonym;
-pub mod backup;
+pub mod dump;
 
 #[derive(Deserialize)]
 pub struct IndexParam {

meilisearch-http/tests/assets/dumps/v1/metadata.json

@@ -8,5 +8,5 @@
         }
     ],
     "dbVersion": "0.13.0",
-    "backupVersion": "1"
+    "dumpVersion": "1"
 }

meilisearch-http/tests/common.rs

@@ -40,8 +40,8 @@ impl Server {
 
         let opt = Opt {
             db_path: tmp_dir.path().join("db").to_str().unwrap().to_string(),
-            backup_folder: tmp_dir.path().join("backup"),
-            backup_batch_size: 16,
+            dumps_folder: tmp_dir.path().join("dump"),
+            dump_batch_size: 16,
             http_addr: "127.0.0.1:7700".to_owned(),
             master_key: None,
             env: "development".to_owned(),
@@ -489,17 +489,17 @@ impl Server {
         self.get_request("/sys-info/pretty").await
     }
 
-    pub async fn trigger_backup(&self) -> (Value, StatusCode) {
-        self.post_request("/backups", Value::Null).await
+    pub async fn trigger_dump(&self) -> (Value, StatusCode) {
+        self.post_request("/dumps", Value::Null).await
     }
 
-    pub async fn get_backup_status(&mut self, backup_uid: &str) -> (Value, StatusCode) {
-        let url = format!("/backups/{}/status", backup_uid);
+    pub async fn get_dump_status(&mut self, dump_uid: &str) -> (Value, StatusCode) {
+        let url = format!("/dumps/{}/status", dump_uid);
         self.get_request(&url).await
     }
 
-    pub async fn trigger_backup_importation(&mut self, backup_uid: &str) -> (Value, StatusCode) {
-        let url = format!("/backups/{}/import", backup_uid);
+    pub async fn trigger_dump_importation(&mut self, dump_uid: &str) -> (Value, StatusCode) {
+        let url = format!("/dumps/{}/import", dump_uid);
         self.get_request(&url).await
     }
 }

meilisearch-http/tests/dump.rs

@@ -9,24 +9,24 @@ use tempfile::TempDir;
 
 #[macro_use] mod common;
 
-async fn trigger_and_wait_backup(server: &mut common::Server) -> String {
-    let (value, status_code) = server.trigger_backup().await;
+async fn trigger_and_wait_dump(server: &mut common::Server) -> String {
+    let (value, status_code) = server.trigger_dump().await;
 
     assert_eq!(status_code, 202);
 
-    let backup_uid = value["uid"].as_str().unwrap().to_string();
+    let dump_uid = value["uid"].as_str().unwrap().to_string();
 
     for _ in 0..20 as u8 {
-        let (value, status_code) = server.get_backup_status(&backup_uid).await;
+        let (value, status_code) = server.get_dump_status(&dump_uid).await;
     
         assert_eq!(status_code, 200);
-        assert_ne!(value["status"].as_str(), Some("backup_process_failed"));
+        assert_ne!(value["status"].as_str(), Some("dump_process_failed"));
         
-        if value["status"].as_str() == Some("done") { return backup_uid }
+        if value["status"].as_str() == Some("done") { return dump_uid }
         thread::sleep(Duration::from_millis(100));
     }
 
-    unreachable!("backup creation runned out of time")
+    unreachable!("dump creation runned out of time")
 }
 
 fn current_db_version() -> (String, String, String) {
@@ -37,7 +37,7 @@ fn current_db_version() -> (String, String, String) {
     (current_version_major, current_version_minor, current_version_patch)
 }
 
-fn current_backup_version() -> String {
+fn current_dump_version() -> String {
     "V1".into()
 }
 
@@ -50,31 +50,31 @@ fn read_all_jsonline<R: std::io::Read>(r: R) -> Value {
 
 #[actix_rt::test]
 #[ignore]
-async fn trigger_backup_should_return_ok() {
+async fn trigger_dump_should_return_ok() {
     let server = common::Server::test_server().await;
 
-    let (_, status_code) = server.trigger_backup().await;
+    let (_, status_code) = server.trigger_dump().await;
 
     assert_eq!(status_code, 202);
 }
 
 #[actix_rt::test]
 #[ignore]
-async fn trigger_backup_twice_should_return_conflict() {
+async fn trigger_dump_twice_should_return_conflict() {
     let server = common::Server::test_server().await;
 
     let expected = json!({
-        "message": "Another backup is already in progress",
-        "errorCode": "backup_already_in_progress",
+        "message": "Another dump is already in progress",
+        "errorCode": "dump_already_in_progress",
         "errorType": "invalid_request_error",
-        "errorLink": "https://docs.meilisearch.com/errors#backup_already_in_progress"
+        "errorLink": "https://docs.meilisearch.com/errors#dump_already_in_progress"
     });
 
-    let (_, status_code) = server.trigger_backup().await;
+    let (_, status_code) = server.trigger_dump().await;
 
     assert_eq!(status_code, 202);
 
-    let (value, status_code) = server.trigger_backup().await;
+    let (value, status_code) = server.trigger_dump().await;
 
     
     assert_json_eq!(expected.clone(), value.clone(), ordered: false);
@@ -83,17 +83,17 @@ async fn trigger_backup_twice_should_return_conflict() {
 
 #[actix_rt::test]
 #[ignore]
-async fn trigger_backup_concurently_should_return_conflict() {
+async fn trigger_dump_concurently_should_return_conflict() {
     let server = common::Server::test_server().await;
 
     let expected = json!({
-        "message": "Another backup is already in progress",
-        "errorCode": "backup_already_in_progress",
+        "message": "Another dump is already in progress",
+        "errorCode": "dump_already_in_progress",
         "errorType": "invalid_request_error",
-        "errorLink": "https://docs.meilisearch.com/errors#backup_already_in_progress"
+        "errorLink": "https://docs.meilisearch.com/errors#dump_already_in_progress"
     });
 
-    let ((_value_1, _status_code_1), (value_2, status_code_2)) = futures::join!(server.trigger_backup(), server.trigger_backup());
+    let ((_value_1, _status_code_1), (value_2, status_code_2)) = futures::join!(server.trigger_dump(), server.trigger_dump());
     
     assert_json_eq!(expected.clone(), value_2.clone(), ordered: false);
     assert_eq!(status_code_2, 409);
@@ -101,21 +101,21 @@ async fn trigger_backup_concurently_should_return_conflict() {
 
 #[actix_rt::test]
 #[ignore]
-async fn get_backup_status_early_should_return_processing() {
+async fn get_dump_status_early_should_return_processing() {
     let mut server = common::Server::test_server().await;
     
 
 
-    let (value, status_code) = server.trigger_backup().await;
+    let (value, status_code) = server.trigger_dump().await;
 
     assert_eq!(status_code, 202);
 
-    let backup_uid = value["uid"].as_str().unwrap().to_string();
+    let dump_uid = value["uid"].as_str().unwrap().to_string();
 
-    let (value, status_code) = server.get_backup_status(&backup_uid).await;
+    let (value, status_code) = server.get_dump_status(&dump_uid).await;
 
     let expected = json!({
-        "uid": backup_uid,
+        "uid": dump_uid,
         "status": "processing"
     });
 
@@ -126,25 +126,24 @@ async fn get_backup_status_early_should_return_processing() {
 
 #[actix_rt::test]
 #[ignore]
-async fn get_backup_status_should_return_done() {
+async fn get_dump_status_should_return_done() {
     let mut server = common::Server::test_server().await;
 
 
-    let (value, status_code) = server.trigger_backup().await;
+    let (value, status_code) = server.trigger_dump().await;
 
     assert_eq!(status_code, 202);
 
-    println!("{:?}", value);
-    let backup_uid = value["uid"].as_str().unwrap().to_string();
+    let dump_uid = value["uid"].as_str().unwrap().to_string();
     
     let expected = json!({
-        "uid": backup_uid.clone(),
+        "uid": dump_uid.clone(),
         "status": "done"
     });
 
-    thread::sleep(Duration::from_secs(1)); // wait backup until process end
+    thread::sleep(Duration::from_secs(1)); // wait dump until process end
 
-    let (value, status_code) = server.get_backup_status(&backup_uid).await;
+    let (value, status_code) = server.get_dump_status(&dump_uid).await;
 
     assert_eq!(status_code, 200);
 
@@ -153,7 +152,7 @@ async fn get_backup_status_should_return_done() {
 
 #[actix_rt::test]
 #[ignore]
-async fn backup_metadata_should_be_valid() {
+async fn dump_metadata_should_be_valid() {
     let mut server = common::Server::test_server().await;
     
     let body = json!({
@@ -163,13 +162,13 @@ async fn backup_metadata_should_be_valid() {
 
     server.create_index(body).await;
     
-    let uid = trigger_and_wait_backup(&mut server).await;
+    let uid = trigger_and_wait_dump(&mut server).await;
 
-    let backup_folder = Path::new(&server.data().backup_folder);
+    let dumps_folder = Path::new(&server.data().dumps_folder);
     let tmp_dir = TempDir::new().unwrap();
     let tmp_dir_path = tmp_dir.path();
 
-    compression::from_tar_gz(&backup_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
+    compression::from_tar_gz(&dumps_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
 
     let file = File::open(tmp_dir_path.join("metadata.json")).unwrap();
     let mut metadata: serde_json::Value = serde_json::from_reader(file).unwrap();
@@ -193,7 +192,7 @@ async fn backup_metadata_should_be_valid() {
             }
         ],
         "dbVersion": format!("{}.{}.{}", major, minor, patch),
-        "backupVersion": current_backup_version()
+        "dumpVersion": current_dump_version()
     });
 
     assert_json_include!(expected: expected.clone(), actual: metadata.clone());
@@ -201,20 +200,20 @@ async fn backup_metadata_should_be_valid() {
 
 #[actix_rt::test]
 #[ignore]
-async fn backup_gzip_should_have_been_created() {
+async fn dump_gzip_should_have_been_created() {
     let mut server = common::Server::test_server().await;
     
 
-    let backup_uid = trigger_and_wait_backup(&mut server).await;
-    let backup_folder = Path::new(&server.data().backup_folder);
+    let dump_uid = trigger_and_wait_dump(&mut server).await;
+    let dumps_folder = Path::new(&server.data().dumps_folder);
 
-    let compressed_path = backup_folder.join(format!("{}.tar.gz", backup_uid));
+    let compressed_path = dumps_folder.join(format!("{}.tar.gz", dump_uid));
     assert!(File::open(compressed_path).is_ok());
 }
 
 #[actix_rt::test]
 #[ignore]
-async fn backup_index_settings_should_be_valid() {
+async fn dump_index_settings_should_be_valid() {
     let mut server = common::Server::test_server().await;
 
     let expected = json!({
@@ -278,13 +277,13 @@ async fn backup_index_settings_should_be_valid() {
 
     server.update_all_settings(expected.clone()).await;
 
-    let uid = trigger_and_wait_backup(&mut server).await;
+    let uid = trigger_and_wait_dump(&mut server).await;
 
-    let backup_folder = Path::new(&server.data().backup_folder);
+    let dumps_folder = Path::new(&server.data().dumps_folder);
     let tmp_dir = TempDir::new().unwrap();
     let tmp_dir_path = tmp_dir.path();
 
-    compression::from_tar_gz(&backup_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
+    compression::from_tar_gz(&dumps_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
 
     let file = File::open(tmp_dir_path.join("test").join("settings.json")).unwrap();
     let settings: serde_json::Value = serde_json::from_reader(file).unwrap();
@@ -294,21 +293,21 @@ async fn backup_index_settings_should_be_valid() {
 
 #[actix_rt::test]
 #[ignore]
-async fn backup_index_documents_should_be_valid() {
+async fn dump_index_documents_should_be_valid() {
     let mut server = common::Server::test_server().await;
 
-    let dataset = include_bytes!("assets/backups/v1/test/documents.jsonl");
+    let dataset = include_bytes!("assets/dumps/v1/test/documents.jsonl");
     let mut slice: &[u8] = dataset;
 
     let expected: Value = read_all_jsonline(&mut slice);
 
-    let uid = trigger_and_wait_backup(&mut server).await;
+    let uid = trigger_and_wait_dump(&mut server).await;
 
-    let backup_folder = Path::new(&server.data().backup_folder);
+    let dumps_folder = Path::new(&server.data().dumps_folder);
     let tmp_dir = TempDir::new().unwrap();
     let tmp_dir_path = tmp_dir.path();
 
-    compression::from_tar_gz(&backup_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
+    compression::from_tar_gz(&dumps_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
 
     let file = File::open(tmp_dir_path.join("test").join("documents.jsonl")).unwrap();
     let documents = read_all_jsonline(file);
@@ -318,21 +317,21 @@ async fn backup_index_documents_should_be_valid() {
 
 #[actix_rt::test]
 #[ignore]
-async fn backup_index_updates_should_be_valid() {
+async fn dump_index_updates_should_be_valid() {
     let mut server = common::Server::test_server().await;
 
-    let dataset = include_bytes!("assets/backups/v1/test/updates.jsonl");
+    let dataset = include_bytes!("assets/dumps/v1/test/updates.jsonl");
     let mut slice: &[u8] = dataset;
 
     let expected: Value = read_all_jsonline(&mut slice);
 
-    let uid = trigger_and_wait_backup(&mut server).await;
+    let uid = trigger_and_wait_dump(&mut server).await;
 
-    let backup_folder = Path::new(&server.data().backup_folder);
+    let dumps_folder = Path::new(&server.data().dumps_folder);
     let tmp_dir = TempDir::new().unwrap();
     let tmp_dir_path = tmp_dir.path();
 
-    compression::from_tar_gz(&backup_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
+    compression::from_tar_gz(&dumps_folder.join(&format!("{}.tar.gz", uid)), tmp_dir_path).unwrap();
 
     let file = File::open(tmp_dir_path.join("test").join("updates.jsonl")).unwrap();
     let mut updates = read_all_jsonline(file);
@@ -354,10 +353,10 @@ async fn backup_index_updates_should_be_valid() {
  
 #[actix_rt::test]
 #[ignore]
-async fn get_unexisting_backup_status_should_return_not_found() {
+async fn get_unexisting_dump_status_should_return_not_found() {
     let mut server = common::Server::test_server().await;
 
-    let (_, status_code) = server.get_backup_status("4242").await;
+    let (_, status_code) = server.get_dump_status("4242").await;
 
     assert_eq!(status_code, 404);
 }