MeiliSearch/meilisearch-lib/src/index_controller/mod.rs

560 lines
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Rust
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use std::collections::BTreeMap;
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use std::path::{Path, PathBuf};
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use std::sync::Arc;
use std::time::Duration;
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use actix_web::error::PayloadError;
use bytes::Bytes;
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use chrono::{DateTime, Utc};
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use futures::Stream;
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use log::info;
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use milli::FieldDistribution;
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use milli::update::IndexDocumentsMethod;
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use serde::{Deserialize, Serialize};
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use tokio::time::sleep;
use uuid::Uuid;
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use dump_actor::DumpActorHandle;
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pub use dump_actor::{DumpInfo, DumpStatus};
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use index_actor::IndexActorHandle;
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use snapshot::load_snapshot;
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use update_actor::UpdateActorHandle;
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pub use updates::*;
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use uuid_resolver::error::UuidResolverError;
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use crate::options::IndexerOpts;
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use crate::index::{Checked, Document, SearchQuery, SearchResult, Settings};
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use error::Result;
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use self::dump_actor::load_dump;
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use self::uuid_resolver::UuidResolverMsg;
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mod dump_actor;
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pub mod error;
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pub mod index_actor;
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mod snapshot;
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pub mod update_actor;
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mod updates;
mod uuid_resolver;
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pub mod update_file_store;
pub type Payload = Box<dyn Stream<Item = std::result::Result<Bytes, PayloadError>> + Send + Sync + 'static + Unpin>;
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#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct IndexMetadata {
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#[serde(skip)]
pub uuid: Uuid,
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pub uid: String,
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name: String,
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#[serde(flatten)]
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pub meta: index_actor::IndexMeta,
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}
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#[derive(Clone, Debug)]
pub struct IndexSettings {
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pub uid: Option<String>,
pub primary_key: Option<String>,
}
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#[derive(Serialize, Debug)]
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#[serde(rename_all = "camelCase")]
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pub struct IndexStats {
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#[serde(skip)]
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pub size: u64,
pub number_of_documents: u64,
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/// Whether the current index is performing an update. It is initially `None` when the
/// index returns it, since it is the `UpdateStore` that knows what index is currently indexing. It is
/// later set to either true or false, we we retrieve the information from the `UpdateStore`
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pub is_indexing: Option<bool>,
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pub field_distribution: FieldDistribution,
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}
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#[derive(Clone)]
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pub struct IndexController {
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uuid_resolver: uuid_resolver::UuidResolverSender,
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index_handle: index_actor::IndexActorHandleImpl,
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update_handle: update_actor::UpdateActorHandleImpl,
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dump_handle: dump_actor::DumpActorHandleImpl,
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}
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pub enum DocumentAdditionFormat {
Json,
}
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#[derive(Serialize, Debug)]
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#[serde(rename_all = "camelCase")]
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pub struct Stats {
pub database_size: u64,
pub last_update: Option<DateTime<Utc>>,
pub indexes: BTreeMap<String, IndexStats>,
}
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pub enum Update {
DocumentAddition {
payload: Payload,
primary_key: Option<String>,
method: IndexDocumentsMethod,
format: DocumentAdditionFormat,
}
}
#[derive(Default, Debug)]
pub struct IndexControllerBuilder {
max_index_size: Option<usize>,
max_update_store_size: Option<usize>,
snapshot_dir: Option<PathBuf>,
import_snapshot: Option<PathBuf>,
ignore_snapshot_if_db_exists: bool,
ignore_missing_snapshot: bool,
dump_src: Option<PathBuf>,
dump_dst: Option<PathBuf>,
}
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impl IndexControllerBuilder {
pub fn build(self, db_path: impl AsRef<Path>, indexer_options: IndexerOpts) -> anyhow::Result<IndexController> {
let index_size = self.max_index_size.ok_or_else(|| anyhow::anyhow!("Missing index size"))?;
let update_store_size = self.max_index_size.ok_or_else(|| anyhow::anyhow!("Missing update database size"))?;
if let Some(ref path) = self.import_snapshot {
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info!("Loading from snapshot {:?}", path);
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load_snapshot(
db_path.as_ref(),
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path,
self.ignore_snapshot_if_db_exists,
self.ignore_missing_snapshot,
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)?;
} else if let Some(ref src_path) = self.dump_src {
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load_dump(
db_path.as_ref(),
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src_path,
index_size,
update_store_size,
&indexer_options,
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)?;
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}
std::fs::create_dir_all(db_path.as_ref())?;
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let uuid_resolver = uuid_resolver::create_uuid_resolver(&db_path)?;
let index_handle =
index_actor::IndexActorHandleImpl::new(&db_path, index_size, &indexer_options)?;
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let update_handle = update_actor::UpdateActorHandleImpl::new(
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index_handle.clone(),
&db_path,
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update_store_size,
)?;
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let dump_handle = dump_actor::DumpActorHandleImpl::new(
&self.dump_dst.ok_or_else(|| anyhow::anyhow!("Missing dump directory path"))?,
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uuid_resolver.clone(),
update_handle.clone(),
index_size,
update_store_size,
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)?;
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//if options.schedule_snapshot {
//let snapshot_service = SnapshotService::new(
//uuid_resolver.clone(),
//update_handle.clone(),
//Duration::from_secs(options.snapshot_interval_sec),
//options.snapshot_dir.clone(),
//options
//.db_path
//.file_name()
//.map(|n| n.to_owned().into_string().expect("invalid path"))
//.unwrap_or_else(|| String::from("data.ms")),
//);
//tokio::task::spawn(snapshot_service.run());
//}
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Ok(IndexController {
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uuid_resolver,
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index_handle,
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update_handle,
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dump_handle,
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})
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}
/// Set the index controller builder's max update store size.
pub fn set_max_update_store_size(&mut self, max_update_store_size: usize) -> &mut Self {
self.max_update_store_size.replace(max_update_store_size);
self
}
pub fn set_max_index_size(&mut self, size: usize) -> &mut Self {
self.max_index_size.replace(size);
self
}
/// Set the index controller builder's snapshot path.
pub fn set_snapshot_dir(&mut self, snapshot_dir: PathBuf) -> &mut Self {
self.snapshot_dir.replace(snapshot_dir);
self
}
/// Set the index controller builder's ignore snapshot if db exists.
pub fn set_ignore_snapshot_if_db_exists(&mut self, ignore_snapshot_if_db_exists: bool) -> &mut Self {
self.ignore_snapshot_if_db_exists = ignore_snapshot_if_db_exists;
self
}
/// Set the index controller builder's ignore missing snapshot.
pub fn set_ignore_missing_snapshot(&mut self, ignore_missing_snapshot: bool) -> &mut Self {
self.ignore_missing_snapshot = ignore_missing_snapshot;
self
}
/// Set the index controller builder's dump src.
pub fn set_dump_src(&mut self, dump_src: PathBuf) -> &mut Self {
self.dump_src.replace(dump_src);
self
}
/// Set the index controller builder's dump dst.
pub fn set_dump_dst(&mut self, dump_dst: PathBuf) -> &mut Self {
self.dump_dst.replace(dump_dst);
self
}
/// Set the index controller builder's import snapshot.
pub fn set_import_snapshot(&mut self, import_snapshot: PathBuf) -> &mut Self {
self.import_snapshot.replace(import_snapshot);
self
}
}
impl IndexController {
pub fn builder() -> IndexControllerBuilder {
IndexControllerBuilder::default()
}
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pub async fn register_update(&self, uid: &str, update: Update) -> Result<UpdateStatus> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid.to_string()).await;
match uuid {
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Ok(uuid) => {
let update_result = self.update_handle.update(uuid, update).await?;
Ok(update_result)
},
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Err(UuidResolverError::UnexistingIndex(name)) => {
let uuid = Uuid::new_v4();
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let update_result = self.update_handle.update(uuid, update).await?;
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// ignore if index creation fails now, since it may already have been created
let _ = self.index_handle.create_index(uuid, None).await;
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UuidResolverMsg::insert(&self.uuid_resolver, uuid, name).await?;
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Ok(update_result)
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}
Err(e) => Err(e.into()),
}
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}
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//pub async fn add_documents(
//&self,
//uid: String,
//method: milli::update::IndexDocumentsMethod,
//payload: Payload,
//primary_key: Option<String>,
//) -> Result<UpdateStatus> {
//let perform_update = |uuid| async move {
//let meta = UpdateMeta::DocumentsAddition {
//method,
//primary_key,
//};
//let (sender, receiver) = mpsc::channel(10);
//// It is necessary to spawn a local task to send the payload to the update handle to
//// prevent dead_locking between the update_handle::update that waits for the update to be
//// registered and the update_actor that waits for the the payload to be sent to it.
//tokio::task::spawn_local(async move {
//payload
//.for_each(|r| async {
//let _ = sender.send(r).await;
//})
//.await
//});
//// This must be done *AFTER* spawning the task.
//self.update_handle.update(meta, receiver, uuid).await
//};
//match self.uuid_resolver.get(uid).await {
//Ok(uuid) => Ok(perform_update(uuid).await?),
//Err(UuidResolverError::UnexistingIndex(name)) => {
//let uuid = Uuid::new_v4();
//let status = perform_update(uuid).await?;
//// ignore if index creation fails now, since it may already have been created
//let _ = self.index_handle.create_index(uuid, None).await;
//self.uuid_resolver.insert(name, uuid).await?;
//Ok(status)
//}
//Err(e) => Err(e.into()),
//}
//}
//pub async fn clear_documents(&self, uid: String) -> Result<UpdateStatus> {
//let uuid = self.uuid_resolver.get(uid).await?;
//let meta = UpdateMeta::ClearDocuments;
//let (_, receiver) = mpsc::channel(1);
//let status = self.update_handle.update(meta, receiver, uuid).await?;
//Ok(status)
//}
//pub async fn delete_documents(
//&self,
//uid: String,
//documents: Vec<String>,
//) -> Result<UpdateStatus> {
//let uuid = self.uuid_resolver.get(uid).await?;
//let meta = UpdateMeta::DeleteDocuments { ids: documents };
//let (_, receiver) = mpsc::channel(1);
//let status = self.update_handle.update(meta, receiver, uuid).await?;
//Ok(status)
//}
//pub async fn update_settings(
//&self,
//uid: String,
//settings: Settings<Checked>,
//create: bool,
//) -> Result<UpdateStatus> {
//let perform_udpate = |uuid| async move {
//let meta = UpdateMeta::Settings(settings.into_unchecked());
//// Nothing so send, drop the sender right away, as not to block the update actor.
//let (_, receiver) = mpsc::channel(1);
//self.update_handle.update(meta, receiver, uuid).await
//};
//match self.uuid_resolver.get(uid).await {
//Ok(uuid) => Ok(perform_udpate(uuid).await?),
//Err(UuidResolverError::UnexistingIndex(name)) if create => {
//let uuid = Uuid::new_v4();
//let status = perform_udpate(uuid).await?;
//// ignore if index creation fails now, since it may already have been created
//let _ = self.index_handle.create_index(uuid, None).await;
//self.uuid_resolver.insert(name, uuid).await?;
//Ok(status)
//}
//Err(e) => Err(e.into()),
//}
//}
//pub async fn create_index(&self, index_settings: IndexSettings) -> Result<IndexMetadata> {
//let IndexSettings { uid, primary_key } = index_settings;
//let uid = uid.ok_or(IndexControllerError::MissingUid)?;
//let uuid = Uuid::new_v4();
//let meta = self.index_handle.create_index(uuid, primary_key).await?;
//self.uuid_resolver.insert(uid.clone(), uuid).await?;
//let meta = IndexMetadata {
//uuid,
//name: uid.clone(),
//uid,
//meta,
//};
//Ok(meta)
//}
//pub async fn delete_index(&self, uid: String) -> Result<()> {
//let uuid = self.uuid_resolver.delete(uid).await?;
//// We remove the index from the resolver synchronously, and effectively perform the index
//// deletion as a background task.
//let update_handle = self.update_handle.clone();
//let index_handle = self.index_handle.clone();
//tokio::spawn(async move {
//if let Err(e) = update_handle.delete(uuid).await {
//error!("Error while deleting index: {}", e);
//}
//if let Err(e) = index_handle.delete(uuid).await {
//error!("Error while deleting index: {}", e);
//}
//});
//Ok(())
//}
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pub async fn update_status(&self, uid: String, id: u64) -> Result<UpdateStatus> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let result = self.update_handle.update_status(uuid, id).await?;
Ok(result)
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}
pub async fn all_update_status(&self, uid: String) -> Result<Vec<UpdateStatus>> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let result = self.update_handle.get_all_updates_status(uuid).await?;
Ok(result)
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}
pub async fn list_indexes(&self) -> Result<Vec<IndexMetadata>> {
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let uuids = UuidResolverMsg::list(&self.uuid_resolver).await?;
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let mut ret = Vec::new();
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for (uid, uuid) in uuids {
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let meta = self.index_handle.get_index_meta(uuid).await?;
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let meta = IndexMetadata {
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uuid,
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name: uid.clone(),
uid,
meta,
};
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ret.push(meta);
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}
Ok(ret)
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}
pub async fn settings(&self, uid: String) -> Result<Settings<Checked>> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let settings = self.index_handle.settings(uuid).await?;
Ok(settings)
}
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pub async fn documents(
&self,
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uid: String,
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offset: usize,
limit: usize,
attributes_to_retrieve: Option<Vec<String>>,
) -> Result<Vec<Document>> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let documents = self
.index_handle
.documents(uuid, offset, limit, attributes_to_retrieve)
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.await?;
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Ok(documents)
}
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pub async fn document(
&self,
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uid: String,
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doc_id: String,
attributes_to_retrieve: Option<Vec<String>>,
) -> Result<Document> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let document = self
.index_handle
.document(uuid, doc_id, attributes_to_retrieve)
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.await?;
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Ok(document)
}
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pub async fn update_index(
&self,
uid: String,
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mut index_settings: IndexSettings,
) -> Result<IndexMetadata> {
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if index_settings.uid.is_some() {
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index_settings.uid.take();
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}
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid.clone()).await?;
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let meta = self.index_handle.update_index(uuid, index_settings).await?;
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let meta = IndexMetadata {
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uuid,
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name: uid.clone(),
uid,
meta,
};
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Ok(meta)
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}
pub async fn search(&self, uid: String, query: SearchQuery) -> Result<SearchResult> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let result = self.index_handle.search(uuid, query).await?;
Ok(result)
}
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pub async fn get_index(&self, uid: String) -> Result<IndexMetadata> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid.clone()).await?;
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let meta = self.index_handle.get_index_meta(uuid).await?;
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let meta = IndexMetadata {
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uuid,
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name: uid.clone(),
uid,
meta,
};
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Ok(meta)
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}
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pub async fn get_uuids_size(&self) -> Result<u64> {
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let size = UuidResolverMsg::get_size(&self.uuid_resolver).await?;
Ok(size)
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}
pub async fn get_index_stats(&self, uid: String) -> Result<IndexStats> {
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let uuid = UuidResolverMsg::get(&self.uuid_resolver, uid).await?;
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let update_infos = self.update_handle.get_info().await?;
let mut stats = self.index_handle.get_index_stats(uuid).await?;
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// Check if the currently indexing update is from out index.
stats.is_indexing = Some(Some(uuid) == update_infos.processing);
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Ok(stats)
}
pub async fn get_all_stats(&self) -> Result<Stats> {
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let update_infos = self.update_handle.get_info().await?;
let mut database_size = self.get_uuids_size().await? + update_infos.size;
let mut last_update: Option<DateTime<_>> = None;
let mut indexes = BTreeMap::new();
for index in self.list_indexes().await? {
let mut index_stats = self.index_handle.get_index_stats(index.uuid).await?;
database_size += index_stats.size;
last_update = last_update.map_or(Some(index.meta.updated_at), |last| {
Some(last.max(index.meta.updated_at))
});
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index_stats.is_indexing = Some(Some(index.uuid) == update_infos.processing);
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indexes.insert(index.uid, index_stats);
}
Ok(Stats {
database_size,
last_update,
indexes,
})
}
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pub async fn create_dump(&self) -> Result<DumpInfo> {
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Ok(self.dump_handle.create_dump().await?)
}
pub async fn dump_info(&self, uid: String) -> Result<DumpInfo> {
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Ok(self.dump_handle.dump_info(uid).await?)
}
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}
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pub async fn get_arc_ownership_blocking<T>(mut item: Arc<T>) -> T {
loop {
match Arc::try_unwrap(item) {
Ok(item) => return item,
Err(item_arc) => {
item = item_arc;
sleep(Duration::from_millis(100)).await;
continue;
}
}
}
}
/// Parses the v1 version of the Asc ranking rules `asc(price)`and returns the field name.
pub fn asc_ranking_rule(text: &str) -> Option<&str> {
text.split_once("asc(")
.and_then(|(_, tail)| tail.rsplit_once(")"))
.map(|(field, _)| field)
}
/// Parses the v1 version of the Desc ranking rules `asc(price)`and returns the field name.
pub fn desc_ranking_rule(text: &str) -> Option<&str> {
text.split_once("desc(")
.and_then(|(_, tail)| tail.rsplit_once(")"))
.map(|(field, _)| field)
}
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fn update_files_path(path: impl AsRef<Path>) -> PathBuf {
path.as_ref().join("updates/updates_files")
}