searchengines-web/MeiliSearch
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MeiliSearch
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WIP: rebasing on master

This commit is contained in:
tamo 2021-04-28 16:43:49 +02:00
parent ceb8d6e1c9
commit e389c088eb
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20 changed files with 540 additions and 433 deletions
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423
meilisearch-http/src/dump.rs
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@ -1,423 +0,0 @@
use std::fs::{create_dir_all, File};
use std::io::prelude::*;
use std::path::{Path, PathBuf};
use std::sync::Mutex;
use std::thread;
use actix_web::web;
use chrono::offset::Utc;
use indexmap::IndexMap;
use log::{error, info};
use once_cell::sync::Lazy;
use serde::{Deserialize, Serialize};
use serde_json::json;
use tempfile::TempDir;
use crate::Data;
use crate::error::{Error, ResponseError};
use crate::helpers::compression;
use crate::routes::index;
use crate::routes::setting::Settings;
use crate::routes::index::IndexResponse;
// Mutex to share dump progress.
static DUMP_INFO: Lazy<Mutex<Option<DumpInfo>>> = Lazy::new(Mutex::default);
#[derive(Debug, Serialize, Deserialize, Copy, Clone)]
enum DumpVersion {
V1,
}
impl DumpVersion {
const CURRENT: Self = Self::V1;
}
#[derive(Debug, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DumpMetadata {
indexes: Vec<crate::routes::index::IndexResponse>,
db_version: String,
dump_version: DumpVersion,
}
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 {
DumpMetadata {
indexes,
db_version,
dump_version: DumpVersion::CURRENT,
}
}
/// Extract DumpMetadata from `metadata.json` file present at provided `dir_path`
fn from_path(dir_path: &Path) -> Result<Self, Error> {
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 DumpMetadata in `metadata.json` file at provided `dir_path`
fn to_path(&self, dir_path: &Path) -> Result<(), Error> {
let path = dir_path.join("metadata.json");
let file = File::create(path)?;
serde_json::to_writer(file, &self)?;
Ok(())
}
}
/// Extract Settings from `settings.json` file present at provided `dir_path`
fn settings_from_path(dir_path: &Path) -> Result<Settings, Error> {
let path = dir_path.join("settings.json");
let file = File::open(path)?;
let reader = std::io::BufReader::new(file);
let metadata = serde_json::from_reader(reader)?;
Ok(metadata)
}
/// Write Settings in `settings.json` file at provided `dir_path`
fn settings_to_path(settings: &Settings, dir_path: &Path) -> Result<(), Error> {
let path = dir_path.join("settings.json");
let file = File::create(path)?;
serde_json::to_writer(file, settings)?;
Ok(())
}
/// Import settings and documents of a dump with version `DumpVersion::V1` in specified index.
fn import_index_v1(
data: &Data,
dumps_dir: &Path,
index_uid: &str,
document_batch_size: usize,
write_txn: &mut MainWriter,
) -> Result<(), Error> {
// open index
let index = data
.db
.open_index(index_uid)
.ok_or(Error::index_not_found(index_uid))?;
// index dir path in dump dir
let index_path = &dumps_dir.join(index_uid);
// extract `settings.json` file and import content
let settings = settings_from_path(&index_path)?;
let settings = settings.to_update().map_err(|e| Error::dump_failed(format!("importing settings for index {}; {}", index_uid, e)))?;
apply_settings_update(write_txn, &index, settings)?;
// create iterator over documents in `documents.jsonl` to make batch importation
// create iterator over documents in `documents.jsonl` to make batch importation
let documents = {
let file = File::open(&index_path.join("documents.jsonl"))?;
let reader = std::io::BufReader::new(file);
let deserializer = serde_json::Deserializer::from_reader(reader);
deserializer.into_iter::<IndexMap<String, serde_json::Value>>()
};
// batch import document every `document_batch_size`:
// create a Vec to bufferize documents
let mut values = Vec::with_capacity(document_batch_size);
// iterate over documents
for document in documents {
// push document in buffer
values.push(document?);
// if buffer is full, create and apply a batch, and clean buffer
if values.len() == document_batch_size {
let batch = std::mem::replace(&mut values, Vec::with_capacity(document_batch_size));
apply_documents_addition(write_txn, &index, batch)?;
}
}
// apply documents remaining in the buffer
if !values.is_empty() {
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 dump from `dump_path` in database.
pub fn import_dump(
data: &Data,
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 dump in temporary directory
compression::from_tar_gz(dump_path, tmp_dir_path)?;
// read dump metadata
let metadata = DumpMetadata::from_path(&tmp_dir_path)?;
// 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
let existing_index_uids = data.db.indexes_uids();
for index in metadata.indexes.iter() {
if existing_index_uids.contains(&index.uid) {
data.db.delete_index(index.uid.clone())?;
}
index::create_index_sync(&data.db, index.uid.clone(), index.name.clone(), index.primary_key.clone())?;
}
// import each indexes content
data.db.main_write::<_, _, Error>(|mut writer| {
for index in metadata.indexes {
import_index(&data, tmp_dir_path, &index.uid, document_batch_size, &mut writer)?;
}
Ok(())
})?;
info!("Dump importation from {:?} succeed", dump_path);
Ok(())
}
#[derive(Debug, Serialize, Deserialize, PartialEq, Clone)]
#[serde(rename_all = "snake_case")]
pub enum DumpStatus {
Done,
InProgress,
Failed,
}
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct DumpInfo {
pub uid: String,
pub status: DumpStatus,
#[serde(skip_serializing_if = "Option::is_none", flatten)]
pub error: Option<serde_json::Value>,
}
impl DumpInfo {
pub fn new(uid: String, status: DumpStatus) -> Self {
Self { uid, status, error: None }
}
pub fn with_error(mut self, error: ResponseError) -> Self {
self.status = DumpStatus::Failed;
self.error = Some(json!(error));
self
}
pub fn dump_already_in_progress(&self) -> bool {
self.status == DumpStatus::InProgress
}
pub fn get_current() -> Option<Self> {
DUMP_INFO.lock().unwrap().clone()
}
pub fn set_current(&self) {
*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%3f").to_string()
}
/// Infer dumps_dir from dump_uid
pub fn compressed_dumps_dir(dumps_dir: &Path, dump_uid: &str) -> PathBuf {
dumps_dir.join(format!("{}.dump", dump_uid))
}
/// Write metadata in dump
fn dump_metadata(data: &web::Data<Data>, dir_path: &Path, indexes: Vec<IndexResponse>) -> Result<(), Error> {
let (db_major, db_minor, db_patch) = data.db.version();
let metadata = DumpMetadata::new(indexes, format!("{}.{}.{}", db_major, db_minor, db_patch));
metadata.to_path(dir_path)
}
/// Export settings of provided index in dump
fn dump_index_settings(data: &web::Data<Data>, reader: &MainReader, dir_path: &Path, index_uid: &str) -> Result<(), Error> {
let settings = crate::routes::setting::get_all_sync(data, reader, index_uid)?;
settings_to_path(&settings, dir_path)
}
/// Export updates of provided index in dump
fn dump_index_updates(data: &web::Data<Data>, reader: &UpdateReader, dir_path: &Path, index_uid: &str) -> Result<(), Error> {
let updates_path = dir_path.join("updates.jsonl");
let updates = crate::routes::index::get_all_updates_status_sync(data, reader, index_uid)?;
let file = File::create(updates_path)?;
for update in updates {
serde_json::to_writer(&file, &update)?;
writeln!(&file)?;
}
Ok(())
}
/// Export documents of provided index in dump
fn dump_index_documents(data: &web::Data<Data>, reader: &MainReader, dir_path: &Path, index_uid: &str) -> Result<(), Error> {
let documents_path = dir_path.join("documents.jsonl");
let file = File::create(documents_path)?;
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, dump_batch_size, None)?;
if documents.is_empty() { break; } else { offset += dump_batch_size; }
for document in documents {
serde_json::to_writer(&file, &document)?;
writeln!(&file)?;
}
}
Ok(())
}
/// Write error with a context.
fn fail_dump_process<E: std::error::Error>(dump_info: DumpInfo, context: &str, error: E) {
let error_message = format!("{}; {}", context, error);
error!("Something went wrong during dump process: {}", &error_message);
dump_info.with_error(Error::dump_failed(error_message).into()).set_current();
}
/// Main function of dump.
fn dump_process(data: web::Data<Data>, dumps_dir: PathBuf, dump_info: DumpInfo) {
// open read transaction on Update
let update_reader = match data.db.update_read_txn() {
Ok(r) => r,
Err(e) => {
fail_dump_process(dump_info, "creating RO transaction on updates", e);
return ;
}
};
// open read transaction on Main
let main_reader = match data.db.main_read_txn() {
Ok(r) => r,
Err(e) => {
fail_dump_process(dump_info, "creating RO transaction on main", e);
return ;
}
};
// create a temporary directory
let tmp_dir = match TempDir::new() {
Ok(tmp_dir) => tmp_dir,
Err(e) => {
fail_dump_process(dump_info, "creating temporary directory", e);
return ;
}
};
let tmp_dir_path = tmp_dir.path();
// fetch indexes
let indexes = match crate::routes::index::list_indexes_sync(&data, &main_reader) {
Ok(indexes) => indexes,
Err(e) => {
fail_dump_process(dump_info, "listing indexes", e);
return ;
}
};
// create metadata
if let Err(e) = dump_metadata(&data, &tmp_dir_path, indexes.clone()) {
fail_dump_process(dump_info, "generating metadata", e);
return ;
}
// export settings, updates and documents for each indexes
for index in indexes {
let index_path = tmp_dir_path.join(&index.uid);
// create index sub-dircetory
if let Err(e) = create_dir_all(&index_path) {
fail_dump_process(dump_info, &format!("creating directory for index {}", &index.uid), e);
return ;
}
// export settings
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) = 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) = 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 dump in a file named `{dump_uid}.dump` in `dumps_dir`
if let Err(e) = crate::helpers::compression::to_tar_gz(&tmp_dir_path, &compressed_dumps_dir(&dumps_dir, &dump_info.uid)) {
fail_dump_process(dump_info, "compressing dump", e);
return ;
}
// update dump info to `done`
let resume = DumpInfo::new(
dump_info.uid,
DumpStatus::Done
);
resume.set_current();
}
pub fn init_dump_process(data: &web::Data<Data>, dumps_dir: &Path) -> Result<DumpInfo, Error> {
create_dir_all(dumps_dir).map_err(|e| Error::dump_failed(format!("creating temporary directory {}", e)))?;
// 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 dump info
let info = DumpInfo::new(
generate_uid(),
DumpStatus::InProgress
);
info.set_current();
let data = data.clone();
let dumps_dir = dumps_dir.to_path_buf();
let info_cloned = info.clone();
// run dump process in a new thread
thread::spawn(move ||
dump_process(data, dumps_dir, info_cloned)
);
Ok(info)
}

258
meilisearch-http/src/index_controller/dump.rs Normal file
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@ -0,0 +1,258 @@
use std::{
fs::File,
path::{Path, PathBuf},
sync::Arc,
};
use anyhow::bail;
use heed::EnvOpenOptions;
use log::{error, info};
use milli::update::{IndexDocumentsMethod, UpdateBuilder, UpdateFormat};
use serde::{Deserialize, Serialize};
use tempfile::TempDir;
use tokio::fs;
use tokio::task::spawn_blocking;
use super::update_actor::UpdateActorHandle;
use super::uuid_resolver::UuidResolverHandle;
use super::IndexMetadata;
use crate::index::Index;
use crate::index_controller::uuid_resolver;
use crate::{helpers::compression, index::Settings};
#[derive(Debug, Serialize, Deserialize, Copy, Clone)]
enum DumpVersion {
V1,
}
impl DumpVersion {
const CURRENT: Self = Self::V1;
}
#[derive(Debug, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DumpMetadata {
indexes: Vec<IndexMetadata>,
db_version: String,
dump_version: DumpVersion,
}
impl DumpMetadata {
/// Create a DumpMetadata with the current dump version of meilisearch.
pub fn new(indexes: Vec<IndexMetadata>, db_version: String) -> Self {
DumpMetadata {
indexes,
db_version,
dump_version: DumpVersion::CURRENT,
}
}
/// Extract DumpMetadata 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 DumpMetadata in `metadata.json` file at provided `dir_path`
fn to_path(&self, dir_path: &Path) -> anyhow::Result<()> {
let path = dir_path.join("metadata.json");
let file = File::create(path)?;
serde_json::to_writer(file, &self)?;
Ok(())
}
}
pub struct DumpService<U, R> {
uuid_resolver_handle: R,
update_handle: U,
dump_path: PathBuf,
db_name: String,
}
impl<U, R> DumpService<U, R>
where
U: UpdateActorHandle,
R: UuidResolverHandle,
{
pub fn new(
uuid_resolver_handle: R,
update_handle: U,
dump_path: PathBuf,
db_name: String,
) -> Self {
Self {
uuid_resolver_handle,
update_handle,
dump_path,
db_name,
}
}
pub async fn run(self) {
if let Err(e) = self.perform_dump().await {
error!("{}", e);
}
}
async fn perform_dump(&self) -> anyhow::Result<()> {
info!("Performing dump.");
let dump_dir = self.dump_path.clone();
fs::create_dir_all(&dump_dir).await?;
let temp_dump_dir = spawn_blocking(move || tempfile::tempdir_in(dump_dir)).await??;
let temp_dump_path = temp_dump_dir.path().to_owned();
let uuids = self
.uuid_resolver_handle
.dump(temp_dump_path.clone())
.await?;
if uuids.is_empty() {
return Ok(());
}
let tasks = uuids
.iter()
.map(|&uuid| self.update_handle.dump(uuid, temp_dump_path.clone()))
.collect::<Vec<_>>();
futures::future::try_join_all(tasks).await?;
let dump_dir = self.dump_path.clone();
let dump_path = self.dump_path.join(format!("{}.dump", self.db_name));
let dump_path = spawn_blocking(move || -> anyhow::Result<PathBuf> {
let temp_dump_file = tempfile::NamedTempFile::new_in(dump_dir)?;
let temp_dump_file_path = temp_dump_file.path().to_owned();
compression::to_tar_gz(temp_dump_path, temp_dump_file_path)?;
temp_dump_file.persist(&dump_path)?;
Ok(dump_path)
})
.await??;
info!("Created dump in {:?}.", dump_path);
Ok(())
}
}
/// Extract Settings from `settings.json` file present at provided `dir_path`
fn settings_from_path(dir_path: &Path) -> anyhow::Result<Settings> {
let path = dir_path.join("settings.json");
let file = File::open(path)?;
let reader = std::io::BufReader::new(file);
let metadata = serde_json::from_reader(reader)?;
Ok(metadata)
}
/// Write Settings in `settings.json` file at provided `dir_path`
fn settings_to_path(settings: &Settings, dir_path: &Path) -> anyhow::Result<()> {
let path = dir_path.join("settings.json");
let file = File::create(path)?;
serde_json::to_writer(file, settings)?;
Ok(())
}
fn import_index_v1(size: usize, dump_path: &Path, index_path: &Path) -> anyhow::Result<()> {
std::fs::create_dir_all(&index_path)?;
let mut options = EnvOpenOptions::new();
options.map_size(size);
let index = milli::Index::new(options, index_path)?;
let index = Index(Arc::new(index));
// extract `settings.json` file and import content
let settings = settings_from_path(&dump_path)?;
let update_builder = UpdateBuilder::new(0);
index.update_settings(&settings, update_builder)?;
let update_builder = UpdateBuilder::new(1);
let file = File::open(&index_path.join("documents.jsonl"))?;
let reader = std::io::BufReader::new(file);
index.update_documents(
UpdateFormat::JsonStream,
IndexDocumentsMethod::ReplaceDocuments,
reader,
update_builder,
None,
)?;
// the last step: we extract the milli::Index and close it
Arc::try_unwrap(index.0)
.map_err(|_e| "[dumps] At this point no one is supposed to have a reference on the index")
.unwrap()
.prepare_for_closing()
.wait();
Ok(())
}
pub fn load_dump(
db_path: impl AsRef<Path>,
dump_path: impl AsRef<Path>,
size: usize,
) -> anyhow::Result<()> {
info!("Importing dump from {}...", dump_path.as_ref().display());
let db_path = db_path.as_ref();
let dump_path = dump_path.as_ref();
let uuid_resolver = uuid_resolver::UuidResolverHandleImpl::new(&db_path)?;
// extract the dump in a temporary directory
let tmp_dir = TempDir::new()?;
let tmp_dir_path = tmp_dir.path();
compression::from_tar_gz(dump_path, tmp_dir_path)?;
// read dump metadata
let metadata = DumpMetadata::from_path(&tmp_dir_path)?;
// choose importation function from DumpVersion of metadata
let import_index = match metadata.dump_version {
DumpVersion::V1 => import_index_v1,
};
// remove indexes which have same `uuid` than indexes to import and create empty indexes
let existing_index_uids = futures::executor::block_on(uuid_resolver.list())?;
info!("Deleting indexes provided in the dump...");
for idx in &metadata.indexes {
if let Some((_, uuid)) = existing_index_uids.iter().find(|(s, _)| s == &idx.uid) {
// if we find the index in the `uuid_resolver` it's supposed to exist on the file system
// and we want to delete it
let path = db_path.join(&format!("indexes/index-{}", uuid));
info!("Deleting {}", path.display());
use std::io::ErrorKind::*;
match std::fs::remove_dir_all(path) {
Ok(()) => (),
// if an index was present in the metadata but missing of the fs we can ignore the
// problem because we are going to create it later
Err(e) if e.kind() == NotFound => (),
Err(e) => bail!(e),
}
} else {
// if the index does not exist in the `uuid_resolver` we create it
futures::executor::block_on(uuid_resolver.create(idx.uid.clone()))?;
}
}
// import each indexes content
for idx in metadata.indexes {
let dump_path = tmp_dir_path.join(&idx.uid);
let uuid = futures::executor::block_on(uuid_resolver.get(idx.uid))?;
let index_path = db_path.join(&format!("indexes/index-{}", uuid));
info!("Importing dump from {} into {}...", dump_path.display(), index_path.display());
import_index(size, &dump_path, &index_path).unwrap();
info!("Dump importation from {} succeed", dump_path.display());
}
info!("Dump importation from {} succeed", dump_path.display());
Ok(())
}

36
meilisearch-http/src/index_controller/index_actor/actor.rs
View File

@ -36,6 +36,9 @@ impl<S: IndexStore + Sync + Send> IndexActor<S> {
Ok(Self { receiver, update_handler, store })
}
/// `run` poll the write_receiver and read_receiver concurrently, but while messages send
/// through the read channel are processed concurrently, the messages sent through the write
/// channel are processed one at a time.
pub async fn run(mut self) {
let mut receiver = self
.receiver
@ -119,6 +122,9 @@ impl<S: IndexStore + Sync + Send> IndexActor<S> {
Snapshot { uuid, path, ret } => {
let _ = ret.send(self.handle_snapshot(uuid, path).await);
}
Dump { uuid, path, ret } => {
let _ = ret.send(self.handle_dump(uuid, path).await);
}
GetStats { uuid, ret } => {
let _ = ret.send(self.handle_get_stats(uuid).await);
}
@ -306,7 +312,35 @@ impl<S: IndexStore + Sync + Send> IndexActor<S> {
Ok(())
}
async fn handle_get_stats(&self, uuid: Uuid) -> IndexResult<IndexStats> {
async fn handle_dump(&self, uuid: Uuid, mut path: PathBuf) -> Result<()> {
use tokio::fs::create_dir_all;
path.push("indexes");
create_dir_all(&path)
.await
.map_err(|e| IndexError::Error(e.into()))?;
if let Some(index) = self.store.get(uuid).await? {
let mut index_path = path.join(format!("index-{}", uuid));
create_dir_all(&index_path)
.await
.map_err(|e| IndexError::Error(e.into()))?;
index_path.push("data.mdb");
spawn_blocking(move || -> anyhow::Result<()> {
// Get write txn to wait for ongoing write transaction before dump.
let _txn = index.write_txn()?;
index.env.copy_to_path(index_path, CompactionOption::Enabled)?;
Ok(())
})
.await
.map_err(|e| IndexError::Error(e.into()))?
.map_err(IndexError::Error)?;
}
Ok(())
}
async fn handle_get_stats(&self, uuid: Uuid) -> Result<IndexStats> {
let index = self
.store
.get(uuid)

9
meilisearch-http/src/index_controller/index_actor/handle_impl.rs
View File

@ -136,7 +136,14 @@ impl IndexActorHandle for IndexActorHandleImpl {
Ok(receiver.await.expect("IndexActor has been killed")?)
}
async fn get_index_stats(&self, uuid: Uuid) -> IndexResult<IndexStats> {
async fn dump(&self, uuid: Uuid, path: PathBuf) -> Result<()> {
let (ret, receiver) = oneshot::channel();
let msg = IndexMsg::Dump { uuid, path, ret };
let _ = self.read_sender.send(msg).await;
Ok(receiver.await.expect("IndexActor has been killed")?)
}
async fn get_index_stats(&self, uuid: Uuid) -> Result<IndexStats> {
let (ret, receiver) = oneshot::channel();
let msg = IndexMsg::GetStats { uuid, ret };
let _ = self.sender.send(msg).await;

5
meilisearch-http/src/index_controller/index_actor/message.rs
View File

@ -60,6 +60,11 @@ pub enum IndexMsg {
path: PathBuf,
ret: oneshot::Sender<IndexResult<()>>,
},
Dump {
uuid: Uuid,
path: PathBuf,
ret: oneshot::Sender<Result<()>>,
},
GetStats {
uuid: Uuid,
ret: oneshot::Sender<IndexResult<IndexStats>>,

1
meilisearch-http/src/index_controller/index_actor/mod.rs
View File

@ -180,5 +180,4 @@ mod test {
async fn get_index_stats(&self, uuid: Uuid) -> IndexResult<IndexStats> {
self.as_ref().get_index_stats(uuid).await
}
}
}

9
meilisearch-http/src/index_controller/mod.rs
View File

@ -5,7 +5,6 @@ use std::time::Duration;
use actix_web::web::{Bytes, Payload};
use anyhow::bail;
use chrono::{DateTime, Utc};
use futures::stream::StreamExt;
use log::info;
use milli::FieldsDistribution;
@ -25,6 +24,7 @@ use crate::option::Opt;
mod index_actor;
mod snapshot;
mod dump;
mod update_actor;
mod update_handler;
mod updates;
@ -87,6 +87,13 @@ impl IndexController {
options.ignore_snapshot_if_db_exists,
options.ignore_missing_snapshot,
)?;
} else if let Some(ref path) = options.import_dump {
load_dump(
&options.db_path,
path,
index_size,
);
}
std::fs::create_dir_all(&path)?;

93
meilisearch-http/src/index_controller/update_actor/actor.rs
View File

@ -71,11 +71,16 @@ where
Some(Delete { uuid, ret }) => {
let _ = ret.send(self.handle_delete(uuid).await);
}
Some(Snapshot { uuids, path, ret }) => {
let _ = ret.send(self.handle_snapshot(uuids, path).await);
Some(Snapshot { uuid, path, ret }) => {
let _ = ret.send(self.handle_snapshot(uuid, path).await);
}
Some(Dump { uuid, path, ret }) => {
let _ = ret.send(self.handle_dump(uuid, path).await);
}
Some(GetInfo { ret }) => {
let _ = ret.send(self.handle_get_info().await);
Some(GetSize { uuid, ret }) => {
let _ = ret.send(self.handle_get_size(uuid).await);
}
None => break,
}
@ -194,9 +199,51 @@ where
}
async fn handle_delete(&self, uuid: Uuid) -> Result<()> {
let store = self.store.clone();
let store = self.store.delete(uuid).await?;
tokio::task::spawn_blocking(move || store.delete_all(uuid))
if let Some(store) = store {
tokio::task::spawn(async move {
let store = get_arc_ownership_blocking(store).await;
tokio::task::spawn_blocking(move || {
store.prepare_for_closing().wait();
info!("Update store {} was closed.", uuid);
});
});
}
Ok(())
}
async fn handle_create(&self, uuid: Uuid) -> Result<()> {
let _ = self.store.get_or_create(uuid).await?;
Ok(())
}
Ok(())
}
async fn handle_create(&self, uuid: Uuid) -> Result<()> {
let _ = self.store.get_or_create(uuid).await?;
Ok(())
}
async fn handle_snapshot(&self, uuid: Uuid, path: PathBuf) -> Result<()> {
let index_handle = self.index_handle.clone();
if let Some(update_store) = self.store.get(uuid).await? {
tokio::task::spawn_blocking(move || -> anyhow::Result<()> {
// acquire write lock to prevent further writes during snapshot
// the update lock must be acquired BEFORE the write lock to prevent dead lock
let _lock = update_store.update_lock.lock();
let mut txn = update_store.env.write_txn()?;
// create db snapshot
update_store.snapshot(&mut txn, &path, uuid)?;
futures::executor::block_on(
async move { index_handle.snapshot(uuid, path).await },
)?;
Ok(())
})
.await
.map_err(|e| UpdateError::Error(e.into()))?
.map_err(|e| UpdateError::Error(e.into()))?;
@ -245,4 +292,42 @@ where
Ok(info)
}
async fn handle_dump(&self, uuid: Uuid, path: PathBuf) -> Result<()> {
let index_handle = self.index_handle.clone();
if let Some(update_store) = self.store.get(uuid).await? {
tokio::task::spawn_blocking(move || -> anyhow::Result<()> {
// acquire write lock to prevent further writes during the dump
// the update lock must be acquired BEFORE the write lock to prevent dead lock
let _lock = update_store.update_lock.lock();
let mut txn = update_store.env.write_txn()?;
// create db dump
update_store.dump(&mut txn, &path, uuid)?;
futures::executor::block_on(
async move { index_handle.dump(uuid, path).await },
)?;
Ok(())
})
.await
.map_err(|e| UpdateError::Error(e.into()))?
.map_err(|e| UpdateError::Error(e.into()))?;
}
Ok(())
}
async fn handle_get_size(&self, uuid: Uuid) -> Result<u64> {
let size = match self.store.get(uuid).await? {
Some(update_store) => tokio::task::spawn_blocking(move || -> anyhow::Result<u64> {
let txn = update_store.env.read_txn()?;
update_store.get_size(&txn)
})
.await
.map_err(|e| UpdateError::Error(e.into()))?
.map_err(|e| UpdateError::Error(e.into()))?,
None => 0,
};
}

14
meilisearch-http/src/index_controller/update_actor/handle_impl.rs
View File

@ -78,6 +78,20 @@ where
receiver.await.expect("update actor killed.")
}
async fn dump(&self, uuid: Uuid, path: PathBuf) -> Result<()> {
let (ret, receiver) = oneshot::channel();
let msg = UpdateMsg::Dump { uuid, path, ret };
let _ = self.sender.send(msg).await;
receiver.await.expect("update actor killed.")
}
async fn get_size(&self, uuid: Uuid) -> Result<u64> {
let (ret, receiver) = oneshot::channel();
let msg = UpdateMsg::GetSize { uuid, ret };
let _ = self.sender.send(msg).await;
receiver.await.expect("update actor killed.")
}
async fn update(
&self,
meta: UpdateMeta,

9
meilisearch-http/src/index_controller/update_actor/message.rs
View File

@ -31,7 +31,16 @@ pub enum UpdateMsg<D> {
path: PathBuf,
ret: oneshot::Sender<Result<()>>,
},
Dump {
uuid: Uuid,
path: PathBuf,
ret: oneshot::Sender<Result<()>>,
},
GetInfo {
ret: oneshot::Sender<Result<UpdateStoreInfo>>,
},
GetSize {
uuid: Uuid,
ret: oneshot::Sender<Result<u64>>,
},
}

5
meilisearch-http/src/index_controller/update_actor/mod.rs
View File

@ -40,8 +40,11 @@ pub trait UpdateActorHandle {
async fn get_all_updates_status(&self, uuid: Uuid) -> Result<Vec<UpdateStatus>>;
async fn update_status(&self, uuid: Uuid, id: u64) -> Result<UpdateStatus>;
async fn delete(&self, uuid: Uuid) -> Result<()>;
async fn snapshot(&self, uuids: HashSet<Uuid>, path: PathBuf) -> Result<()>;
async fn create(&self, uuid: Uuid) -> Result<()>;
async fn snapshot(&self, uuid: Uuid, path: PathBuf) -> Result<()>;
async fn dump(&self, uuid: Uuid, path: PathBuf) -> Result<()>;
async fn get_info(&self) -> Result<UpdateStoreInfo>;
async fn get_size(&self, uuid: Uuid) -> Result<u64>;
async fn update(
&self,
meta: UpdateMeta,

47
meilisearch-http/src/index_controller/update_actor/update_store.rs
View File

@ -499,9 +499,56 @@ impl UpdateStore {
Ok(())
}
pub fn dump(
&self,
txn: &mut heed::RwTxn,
path: impl AsRef<Path>,
uuid: Uuid,
) -> anyhow::Result<()> {
let update_path = path.as_ref().join("updates");
create_dir_all(&update_path)?;
let mut dump_path = update_path.join(format!("update-{}", uuid));
// acquire write lock to prevent further writes during dump
create_dir_all(&dump_path)?;
dump_path.push("data.mdb");
// create db dump
self.env.copy_to_path(&dump_path, CompactionOption::Enabled)?;
let update_files_path = update_path.join("update_files");
create_dir_all(&update_files_path)?;
for path in self.pending.iter(&txn)? {
let (_, path) = path?;
let name = path.file_name().unwrap();
let to = update_files_path.join(name);
copy(path, to)?;
}
Ok(())
}
pub fn get_info(&self) -> anyhow::Result<UpdateStoreInfo> {
let mut size = self.env.size();
let txn = self.env.read_txn()?;
for entry in self.pending_queue.iter(&txn)? {
let (_, pending) = entry?;
if let Some(path) = pending.content_path() {
size += File::open(path)?.metadata()?.len();
}
}
let processing = match *self.state.read() {
State::Processing(uuid, _) => Some(uuid),
_ => None,
};
Ok(UpdateStoreInfo { size, processing })
}
pub fn get_size(&self, txn: &heed::RoTxn) -> anyhow::Result<u64> {
let mut size = self.env.size();
let txn = self.env.read_txn()?;
for entry in self.pending_queue.iter(&txn)? {
let (_, pending) = entry?;

7
meilisearch-http/src/index_controller/uuid_resolver/actor.rs
View File

@ -41,6 +41,9 @@ impl<S: UuidStore> UuidResolverActor<S> {
Some(SnapshotRequest { path, ret }) => {
let _ = ret.send(self.handle_snapshot(path).await);
}
Some(DumpRequest { path, ret }) => {
let _ = ret.send(self.handle_dump(path).await);
}
Some(GetSize { ret }) => {
let _ = ret.send(self.handle_get_size().await);
}
@ -82,6 +85,10 @@ impl<S: UuidStore> UuidResolverActor<S> {
self.store.snapshot(path).await
}
async fn handle_dump(&self, path: PathBuf) -> Result<Vec<Uuid>> {
self.store.dump(path).await
}
async fn handle_insert(&self, uid: String, uuid: Uuid) -> Result<()> {
if !is_index_uid_valid(&uid) {
return Err(UuidError::BadlyFormatted(uid));

10
meilisearch-http/src/index_controller/uuid_resolver/handle_impl.rs
View File

@ -68,6 +68,7 @@ impl UuidResolverHandle for UuidResolverHandleImpl {
.expect("Uuid resolver actor has been killed")?)
}
/// TODO: we should merge this function with the dump function
async fn snapshot(&self, path: PathBuf) -> Result<HashSet<Uuid>> {
let (ret, receiver) = oneshot::channel();
let msg = UuidResolveMsg::SnapshotRequest { path, ret };
@ -77,6 +78,15 @@ impl UuidResolverHandle for UuidResolverHandleImpl {
.expect("Uuid resolver actor has been killed")?)
}
async fn dump(&self, path: PathBuf) -> Result<Vec<Uuid>> {
let (ret, receiver) = oneshot::channel();
let msg = UuidResolveMsg::DumpRequest { path, ret };
let _ = self.sender.send(msg).await;
Ok(receiver
.await
.expect("Uuid resolver actor has been killed")?)
}
async fn get_size(&self) -> Result<u64> {
let (ret, receiver) = oneshot::channel();
let msg = UuidResolveMsg::GetSize { ret };

4
meilisearch-http/src/index_controller/uuid_resolver/message.rs
View File

@ -31,6 +31,10 @@ pub enum UuidResolveMsg {
path: PathBuf,
ret: oneshot::Sender<Result<HashSet<Uuid>>>,
},
DumpRequest {
path: PathBuf,
ret: oneshot::Sender<Result<Vec<Uuid>>>,
},
GetSize {
ret: oneshot::Sender<Result<u64>>,
},

1
meilisearch-http/src/index_controller/uuid_resolver/mod.rs
View File

@ -31,6 +31,7 @@ pub trait UuidResolverHandle {
async fn delete(&self, name: String) -> anyhow::Result<Uuid>;
async fn list(&self) -> anyhow::Result<Vec<(String, Uuid)>>;
async fn snapshot(&self, path: PathBuf) -> Result<HashSet<Uuid>>;
async fn dump(&self, path: PathBuf) -> Result<Vec<Uuid>>;
async fn get_size(&self) -> Result<u64>;
}

28
meilisearch-http/src/index_controller/uuid_resolver/store.rs
View File

@ -21,6 +21,7 @@ pub trait UuidStore {
async fn list(&self) -> Result<Vec<(String, Uuid)>>;
async fn insert(&self, name: String, uuid: Uuid) -> Result<()>;
async fn snapshot(&self, path: PathBuf) -> Result<HashSet<Uuid>>;
async fn dump(&self, path: PathBuf) -> Result<Vec<Uuid>>;
async fn get_size(&self) -> Result<u64>;
}
@ -130,6 +131,8 @@ impl UuidStore for HeedUuidStore {
.await?
}
// TODO: we should merge this function and the following function for the dump. it's exactly
// the same code
async fn snapshot(&self, mut path: PathBuf) -> Result<HashSet<Uuid>> {
let env = self.env.clone();
let db = self.db;
@ -155,6 +158,31 @@ impl UuidStore for HeedUuidStore {
.await?
}
async fn dump(&self, mut path: PathBuf) -> Result<Vec<Uuid>> {
let env = self.env.clone();
let db = self.db;
tokio::task::spawn_blocking(move || {
// Write transaction to acquire a lock on the database.
let txn = env.write_txn()?;
let mut entries = Vec::new();
for entry in db.iter(&txn)? {
let (_, uuid) = entry?;
let uuid = Uuid::from_slice(uuid)?;
entries.push(uuid)
}
// only perform dump if there are indexes
if !entries.is_empty() {
path.push("index_uuids");
create_dir_all(&path).unwrap();
path.push("data.mdb");
env.copy_to_path(path, CompactionOption::Enabled)?;
}
Ok(entries)
})
.await?
}
async fn get_size(&self) -> Result<u64> {
Ok(self.env.size())
}

1
meilisearch-http/src/option.rs
View File

@ -203,6 +203,7 @@ pub struct Opt {
pub import_dump: Option<PathBuf>,
/// The batch size used in the importation process, the bigger it is the faster the dump is created.
/// This options is now deprecated and will be ignored
#[structopt(long, env = "MEILI_DUMP_BATCH_SIZE", default_value = "1024")]
pub dump_batch_size: usize,

11
meilisearch-http/src/routes/index.rs
View File

@ -1,5 +1,6 @@
use actix_web::{delete, get, post, put};
use actix_web::{web, HttpResponse};
use chrono::DateTime;
use serde::Deserialize;
use crate::error::ResponseError;
@ -68,6 +69,16 @@ struct UpdateIndexRequest {
primary_key: Option<String>,
}
#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct UpdateIndexResponse {
name: String,
uid: String,
created_at: DateTime<Utc>,
updated_at: DateTime<Utc>,
primary_key: Option<String>,
}
#[put("/indexes/{index_uid}", wrap = "Authentication::Private")]
async fn update_index(
data: web::Data<Data>,

2
meilisearch-http/tests/settings/get_settings.rs
View File

@ -19,7 +19,7 @@ async fn get_settings() {
assert_eq!(settings.keys().len(), 6);
assert_eq!(settings["displayedAttributes"], json!(["*"]));
assert_eq!(settings["searchableAttributes"], json!(["*"]));
assert_eq!(settings["attributesForFaceting"], json!({}));
assert_eq!(settings["attributesForFaceting"], json!(null));
assert_eq!(settings["distinctAttribute"], json!(null));
assert_eq!(
settings["rankingRules"],