fix dump import

meilisearch-http/src/index/dump.rs

@@ -9,12 +9,11 @@ use anyhow::bail;
 
 use crate::option::IndexerOpts;
 
-use super::update_handler::UpdateHandler;
-use super::{Checked, Index, Settings};
+use super::{Unchecked, Index, Settings, update_handler::UpdateHandler};
 
 #[derive(Serialize, Deserialize)]
 struct DumpMeta {
-    settings: Settings<Checked>,
+    settings: Settings<Unchecked>,
     primary_key: Option<String>,
 }
 
@@ -33,7 +32,6 @@ impl Index {
     }
 
     fn dump_documents(&self, txn: &RoTxn, path: impl AsRef<Path>) -> anyhow::Result<()> {
-        println!("dumping documents");
         let document_file_path = path.as_ref().join(DATA_FILE_NAME);
         let mut document_file = File::create(&document_file_path)?;
 
@@ -61,11 +59,10 @@ impl Index {
     }
 
     fn dump_meta(&self, txn: &RoTxn, path: impl AsRef<Path>) -> anyhow::Result<()> {
-        println!("dumping settings");
         let meta_file_path = path.as_ref().join(META_FILE_NAME);
         let mut meta_file = File::create(&meta_file_path)?;
 
-        let settings = self.settings_txn(txn)?;
+        let settings = self.settings_txn(txn)?.into_unchecked();
         let primary_key = self.primary_key(txn)?.map(String::from);
         let meta = DumpMeta { settings, primary_key };
 
@@ -84,12 +81,13 @@ impl Index {
             .as_ref()
             .file_name()
             .with_context(|| format!("invalid dump index: {}", src.as_ref().display()))?;
-        let dst_dir_path = dst.as_ref().join(dir_name);
+        let dst_dir_path = dst.as_ref().join("indexes").join(dir_name);
         create_dir_all(&dst_dir_path)?;
 
         let meta_path = src.as_ref().join(META_FILE_NAME);
         let mut meta_file = File::open(meta_path)?;
         let DumpMeta { settings, primary_key } = serde_json::from_reader(&mut meta_file)?;
+        let settings = settings.check();
         let index = Self::open(&dst_dir_path, size as usize)?;
         let mut txn = index.write_txn()?;
 

meilisearch-http/src/index/updates.rs

@@ -87,6 +87,28 @@ impl Settings<Checked> {
             _kind: PhantomData,
         }
     }
+
+    pub fn into_unchecked(self) -> Settings<Unchecked> {
+        let Self {
+            displayed_attributes,
+            searchable_attributes,
+            attributes_for_faceting,
+            ranking_rules,
+            stop_words,
+            distinct_attribute,
+            ..
+        } = self;
+
+        Settings {
+            displayed_attributes,
+            searchable_attributes,
+            attributes_for_faceting,
+            ranking_rules,
+            stop_words,
+            distinct_attribute,
+            _kind: PhantomData,
+        }
+    }
 }
 
 impl Settings<Unchecked> {

meilisearch-http/src/index_controller/dump_actor/actor.rs

@@ -1,17 +1,18 @@
-use super::{DumpError, DumpInfo, DumpMsg, DumpResult, DumpStatus};
-use crate::{helpers::compression, index_controller::dump_actor::Metadata};
-use crate::index_controller::{update_actor, uuid_resolver};
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
+
 use async_stream::stream;
 use chrono::Utc;
 use futures::stream::StreamExt;
 use log::{error, info};
 use update_actor::UpdateActorHandle;
 use uuid_resolver::UuidResolverHandle;
-use std::{fs::File, path::{Path, PathBuf}, sync::Arc};
-use tokio::{fs::create_dir_all, sync::{mpsc, oneshot, RwLock}};
+use tokio::sync::{mpsc, oneshot, RwLock};
+
+use super::{DumpError, DumpInfo, DumpMsg, DumpResult, DumpStatus, DumpTask};
+use crate::index_controller::{update_actor, uuid_resolver};
 
 pub const CONCURRENT_DUMP_MSG: usize = 10;
-const META_FILE_NAME: &'static str = "metadata.json";
 
 pub struct DumpActor<UuidResolver, Update> {
     inbox: Option<mpsc::Receiver<DumpMsg>>,
@@ -155,54 +156,4 @@ where
             })
         )
     }
-
-}
-
-struct DumpTask<U, P> {
-    path: PathBuf,
-    uuid_resolver: U,
-    update_handle: P,
-    uid: String,
-    update_db_size: u64,
-    index_db_size: u64,
-}
-
-impl<U, P> DumpTask<U, P>
-where
-    U: UuidResolverHandle + Send + Sync + Clone + 'static,
-    P: UpdateActorHandle + Send + Sync + Clone + 'static,
-{
-    async fn run(self) -> anyhow::Result<()> {
-        info!("Performing dump.");
-
-        create_dir_all(&self.path).await?;
-
-        let path_clone = self.path.clone();
-        let temp_dump_dir = tokio::task::spawn_blocking(|| tempfile::TempDir::new_in(path_clone)).await??;
-        let temp_dump_path = temp_dump_dir.path().to_owned();
-
-        let meta = Metadata::new_v2(self.index_db_size, self.update_db_size);
-        let meta_path = temp_dump_path.join(META_FILE_NAME);
-        let mut meta_file = File::create(&meta_path)?;
-        serde_json::to_writer(&mut meta_file, &meta)?;
-
-        let uuids = self.uuid_resolver.dump(temp_dump_path.clone()).await?;
-
-        self.update_handle.dump(uuids, temp_dump_path.clone()).await?;
-
-        let dump_path = tokio::task::spawn_blocking(move || -> anyhow::Result<PathBuf> {
-            let temp_dump_file = tempfile::NamedTempFile::new_in(&self.path)?;
-            compression::to_tar_gz(temp_dump_path, temp_dump_file.path())?;
-
-            let dump_path = self.path.join(format!("{}.dump", self.uid));
-            temp_dump_file.persist(&dump_path)?;
-
-            Ok(dump_path)
-        })
-        .await??;
-
-        info!("Created dump in {:?}.", dump_path);
-
-        Ok(())
-    }
 }

meilisearch-http/src/index_controller/dump_actor/loaders/v2.rs

@@ -2,7 +2,7 @@ use std::path::Path;
 
 use anyhow::Context;
 use chrono::{DateTime, Utc};
-use log::info;
+use log::{info, warn};
 use serde::{Deserialize, Serialize};
 
 use crate::{index::Index, index_controller::{update_actor::UpdateStore, uuid_resolver::HeedUuidStore}, option::IndexerOpts};
@@ -29,6 +29,8 @@ impl MetadataV2 {
         self,
         src: impl AsRef<Path>,
         dst: impl AsRef<Path>,
+        _index_db_size: u64,
+        _update_db_size: u64,
         indexing_options: &IndexerOpts,
     ) -> anyhow::Result<()> {
         info!(
@@ -44,23 +46,26 @@ impl MetadataV2 {
         let tmp_dst = tempfile::tempdir_in(dst_dir)?;
 
         info!("Loading index database.");
-        let uuid_resolver_path = dst.as_ref().join("uuid_resolver/");
-        std::fs::create_dir_all(&uuid_resolver_path)?;
-        HeedUuidStore::load_dump(src.as_ref(), tmp_dst.as_ref())?;
+        HeedUuidStore::load_dump(src.as_ref(), &tmp_dst)?;
 
         info!("Loading updates.");
-        UpdateStore::load_dump(&src, &tmp_dst.as_ref(), self.update_db_size)?;
+        UpdateStore::load_dump(&src, &tmp_dst, self.update_db_size)?;
 
         info!("Loading indexes");
         let indexes_path = src.as_ref().join("indexes");
         let indexes = indexes_path.read_dir()?;
         for index in indexes {
             let index = index?;
-            Index::load_dump(&index.path(), &dst, self.index_db_size, indexing_options)?;
+            Index::load_dump(&index.path(), &tmp_dst, self.index_db_size, indexing_options)?;
         }
 
         // Persist and atomically rename the db
         let persisted_dump = tmp_dst.into_path();
+        if dst.as_ref().exists() {
+            warn!("Overwriting database at {}", dst.as_ref().display());
+            std::fs::remove_dir_all(&dst)?;
+        }
+
         std::fs::rename(&persisted_dump, &dst)?;
 
         Ok(())

meilisearch-http/src/index_controller/dump_actor/mod.rs

@@ -1,6 +1,7 @@
-use std::{fs::File, path::Path};
+use std::fs::File;
+use std::path::{Path, PathBuf};
 
-use log::error;
+use log::{error, info};
 #[cfg(test)]
 use mockall::automock;
 use serde::{Deserialize, Serialize};
@@ -12,16 +13,18 @@ use loaders::v2::MetadataV2;
 pub use actor::DumpActor;
 pub use handle_impl::*;
 pub use message::DumpMsg;
+use tokio::fs::create_dir_all;
 
-use crate::option::IndexerOpts;
-
-use super::uuid_resolver::store::UuidStore;
+use super::{update_actor::UpdateActorHandle, uuid_resolver::UuidResolverHandle};
+use crate::{helpers::compression, option::IndexerOpts};
 
 mod actor;
 mod handle_impl;
 mod loaders;
 mod message;
 
+const META_FILE_NAME: &'static str = "metadata.json";
+
 pub type DumpResult<T> = std::result::Result<T, DumpError>;
 
 #[derive(Error, Debug)]
@@ -66,23 +69,6 @@ impl Metadata {
         let meta = MetadataV2::new(index_db_size, update_db_size);
         Self::V2 { meta }
     }
-    /// Extract Metadata from `metadata.json` file present at provided `dir_path`
-    fn from_path(dir_path: &Path) -> anyhow::Result<Self> {
-        let path = dir_path.join("metadata.json");
-        let file = File::open(path)?;
-        let reader = std::io::BufReader::new(file);
-        let metadata = serde_json::from_reader(reader)?;
-
-        Ok(metadata)
-    }
-
-    /// Write Metadata in `metadata.json` file at provided `dir_path`
-    pub async fn to_path(&self, dir_path: &Path) -> anyhow::Result<()> {
-        let path = dir_path.join("metadata.json");
-        tokio::fs::write(path, serde_json::to_string(self)?).await?;
-
-        Ok(())
-    }
 }
 
 #[derive(Debug, Serialize, Deserialize, PartialEq, Clone)]
@@ -125,21 +111,84 @@ impl DumpInfo {
     }
 }
 
-pub fn load_dump<U: UuidStore>(
+pub fn load_dump(
     dst_path: impl AsRef<Path>,
     src_path: impl AsRef<Path>,
-    _index_db_size: u64,
-    _update_db_size: u64,
+    index_db_size: u64,
+    update_db_size: u64,
     indexer_opts: &IndexerOpts,
 ) -> anyhow::Result<()> {
-    let meta_path = src_path.as_ref().join("metadat.json");
+    let tmp_src = tempfile::tempdir_in(".")?;
+    let tmp_src_path = tmp_src.path();
+
+    compression::from_tar_gz(&src_path, tmp_src_path)?;
+
+    let meta_path = tmp_src_path.join(META_FILE_NAME);
     let mut meta_file = File::open(&meta_path)?;
     let meta: Metadata = serde_json::from_reader(&mut meta_file)?;
 
     match meta {
-        Metadata::V1 { meta } => meta.load_dump(src_path, dst_path)?,
-        Metadata::V2 { meta } => meta.load_dump(src_path.as_ref(), dst_path.as_ref(), indexer_opts)?,
+        Metadata::V1 { meta } => meta.load_dump(&tmp_src_path, dst_path)?,
+        Metadata::V2 { meta } => meta.load_dump(
+            &tmp_src_path,
+            dst_path.as_ref(),
+            index_db_size,
+            update_db_size,
+            indexer_opts,
+        )?,
     }
 
     Ok(())
 }
+
+struct DumpTask<U, P> {
+    path: PathBuf,
+    uuid_resolver: U,
+    update_handle: P,
+    uid: String,
+    update_db_size: u64,
+    index_db_size: u64,
+}
+
+impl<U, P> DumpTask<U, P>
+where
+    U: UuidResolverHandle + Send + Sync + Clone + 'static,
+    P: UpdateActorHandle + Send + Sync + Clone + 'static,
+{
+    async fn run(self) -> anyhow::Result<()> {
+        info!("Performing dump.");
+
+        create_dir_all(&self.path).await?;
+
+        let path_clone = self.path.clone();
+        let temp_dump_dir =
+            tokio::task::spawn_blocking(|| tempfile::TempDir::new_in(path_clone)).await??;
+        let temp_dump_path = temp_dump_dir.path().to_owned();
+
+        let meta = Metadata::new_v2(self.index_db_size, self.update_db_size);
+        let meta_path = temp_dump_path.join(META_FILE_NAME);
+        let mut meta_file = File::create(&meta_path)?;
+        serde_json::to_writer(&mut meta_file, &meta)?;
+
+        let uuids = self.uuid_resolver.dump(temp_dump_path.clone()).await?;
+
+        self.update_handle
+            .dump(uuids, temp_dump_path.clone())
+            .await?;
+
+        let dump_path = tokio::task::spawn_blocking(move || -> anyhow::Result<PathBuf> {
+            let temp_dump_file = tempfile::NamedTempFile::new_in(&self.path)?;
+            compression::to_tar_gz(temp_dump_path, temp_dump_file.path())?;
+
+            let dump_path = self.path.join(format!("{}.dump", self.uid));
+            temp_dump_file.persist(&dump_path)?;
+
+            Ok(dump_path)
+        })
+        .await??;
+
+        info!("Created dump in {:?}.", dump_path);
+
+        Ok(())
+    }
+}

meilisearch-http/src/index_controller/mod.rs

@@ -25,6 +25,8 @@ use uuid_resolver::{UuidResolverError, UuidResolverHandle};
 use crate::index::{Checked, Document, SearchQuery, SearchResult, Settings};
 use crate::option::Opt;
 
+use self::dump_actor::load_dump;
+
 mod dump_actor;
 mod index_actor;
 mod snapshot;
@@ -91,8 +93,14 @@ impl IndexController {
                 options.ignore_snapshot_if_db_exists,
                 options.ignore_missing_snapshot,
             )?;
-        } else if let Some(ref _path) = options.import_dump {
-            todo!("implement load dump")
+        } else if let Some(ref src_path) = options.import_dump {
+            load_dump(
+                &options.db_path,
+                src_path,
+                options.max_mdb_size.get_bytes(),
+                options.max_udb_size.get_bytes(),
+                &options.indexer_options,
+            )?;
         }
 
         std::fs::create_dir_all(&path)?;

meilisearch-http/src/index_controller/uuid_resolver/store.rs

@@ -178,6 +178,7 @@ impl HeedUuidStore {
                 Ok(0) => break,
                 Ok(_) => {
                     let DumpEntry { uuid, uid } = serde_json::from_str(&line)?;
+                    println!("importing {} {}", uid, uuid);
                     db.db.put(&mut txn, &uid, uuid.as_bytes())?;
                 }
                 Err(e) => Err(e)?,