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Use the new ExternalDocumentsIds struct in the engine

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Clément Renault 2020-11-22 17:53:33 +01:00
parent fe82516f9f
commit 27f3ef5f7a
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GPG Key ID: 92ADA4E935E71FA4
5 changed files with 32 additions and 58 deletions
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20
src/index.rs
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@ -7,11 +7,10 @@ use heed::types::*;
use heed::{PolyDatabase, Database, RwTxn, RoTxn};
use roaring::RoaringBitmap;
use crate::external_documents_ids::ExternalDocumentsIds;
use crate::facet::FacetType;
use crate::fields_ids_map::FieldsIdsMap;
use crate::Search;
use crate::{BEU32, DocumentId};
use crate::{BEU32, DocumentId, ExternalDocumentsIds};
use crate::{
RoaringBitmapCodec, BEU32StrCodec, StrStrU8Codec, ObkvCodec,
BoRoaringBitmapCodec, CboRoaringBitmapCodec,
@ -143,14 +142,15 @@ impl Index {
pub fn external_documents_ids<'t>(&self, rtxn: &'t RoTxn) -> anyhow::Result<ExternalDocumentsIds<'t>> {
let hard = self.main.get::<_, Str, ByteSlice>(rtxn, HARD_EXTERNAL_DOCUMENTS_IDS_KEY)?;
let soft = self.main.get::<_, Str, ByteSlice>(rtxn, SOFT_EXTERNAL_DOCUMENTS_IDS_KEY)?;
match hard.zip(soft) {
Some((hard, soft)) => {
let hard = fst::Map::new(hard)?.map_data(Cow::Borrowed)?;
let soft = fst::Map::new(soft)?.map_data(Cow::Borrowed)?;
Ok(ExternalDocumentsIds::new(hard, soft))
},
None => Ok(ExternalDocumentsIds::default()),
}
let hard = match hard {
Some(hard) => fst::Map::new(hard)?.map_data(Cow::Borrowed)?,
None => fst::Map::default().map_data(Cow::Owned)?,
};
let soft = match soft {
Some(soft) => fst::Map::new(soft)?.map_data(Cow::Borrowed)?,
None => fst::Map::default().map_data(Cow::Owned)?,
};
Ok(ExternalDocumentsIds::new(hard, soft))
}
/* fields ids map */

1
src/lib.rs
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@ -21,6 +21,7 @@ use fxhash::{FxHasher32, FxHasher64};
use serde_json::{Map, Value};
pub use self::criterion::{Criterion, default_criteria};
pub use self::external_documents_ids::ExternalDocumentsIds;
pub use self::fields_ids_map::FieldsIdsMap;
pub use self::index::Index;
pub use self::search::{Search, SearchResult};

4
src/update/clear_documents.rs
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@ -1,5 +1,5 @@
use roaring::RoaringBitmap;
use crate::Index;
use crate::{ExternalDocumentsIds, Index};
pub struct ClearDocuments<'t, 'u, 'i> {
wtxn: &'t mut heed::RwTxn<'i, 'u>,
@ -27,7 +27,7 @@ impl<'t, 'u, 'i> ClearDocuments<'t, 'u, 'i> {
// We clean some of the main engine datastructures.
self.index.put_words_fst(self.wtxn, &fst::Set::default())?;
self.index.put_external_documents_ids(self.wtxn, &fst::Map::default())?;
self.index.put_external_documents_ids(self.wtxn, &ExternalDocumentsIds::default())?;
self.index.put_documents_ids(self.wtxn, &RoaringBitmap::default())?;
// Clear the other databases.

35
src/update/delete_documents.rs
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@ -1,16 +1,13 @@
use std::borrow::Cow;
use std::convert::TryFrom;
use fst::{IntoStreamer, Streamer};
use fst::IntoStreamer;
use roaring::RoaringBitmap;
use crate::{Index, BEU32, SmallString32};
use crate::{Index, BEU32, SmallString32, ExternalDocumentsIds};
use super::ClearDocuments;
pub struct DeleteDocuments<'t, 'u, 'i> {
wtxn: &'t mut heed::RwTxn<'i, 'u>,
index: &'i Index,
external_documents_ids: fst::Map<Vec<u8>>,
external_documents_ids: ExternalDocumentsIds<'static>,
documents_ids: RoaringBitmap,
}
@ -22,7 +19,7 @@ impl<'t, 'u, 'i> DeleteDocuments<'t, 'u, 'i> {
{
let external_documents_ids = index
.external_documents_ids(wtxn)?
.map_data(Cow::into_owned)?;
.into_static();
Ok(DeleteDocuments {
wtxn,
@ -41,7 +38,7 @@ impl<'t, 'u, 'i> DeleteDocuments<'t, 'u, 'i> {
}
pub fn delete_external_id(&mut self, external_id: &str) -> Option<u32> {
let docid = self.external_documents_ids.get(external_id).map(|id| u32::try_from(id).unwrap())?;
let docid = self.external_documents_ids.get(external_id)?;
self.delete_document(docid);
Some(docid)
}
@ -112,26 +109,14 @@ impl<'t, 'u, 'i> DeleteDocuments<'t, 'u, 'i> {
// We create the FST map of the external ids that we must delete.
external_ids.sort_unstable();
let external_ids_to_delete = fst::Set::from_iter(external_ids.iter().map(AsRef::as_ref))?;
let external_ids_to_delete = fst::Map::from(external_ids_to_delete.into_fst());
let new_external_documents_ids = {
// We acquire the current external documents ids map and create
// a difference operation between the current and to-delete external ids.
let external_documents_ids = self.index.external_documents_ids(self.wtxn)?;
let difference = external_documents_ids.op().add(&external_ids_to_delete).difference();
// We stream the new external ids that does no more contains the to-delete external ids.
let mut iter = difference.into_stream();
let mut new_external_documents_ids_builder = fst::MapBuilder::memory();
while let Some((external_id, docids)) = iter.next() {
new_external_documents_ids_builder.insert(external_id, docids[0].value)?;
}
// We create an FST map from the above builder.
new_external_documents_ids_builder.into_map()
};
// We acquire the current external documents ids map...
let mut new_external_documents_ids = self.index.external_documents_ids(self.wtxn)?;
// ...and remove the to-delete external ids.
new_external_documents_ids.delete_ids(external_ids_to_delete)?;
// We write the new external ids into the main database.
let new_external_documents_ids = new_external_documents_ids.into_static();
self.index.put_external_documents_ids(self.wtxn, &new_external_documents_ids)?;
// Maybe we can improve the get performance of the words

30
src/update/index_documents/transform.rs
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@ -6,13 +6,12 @@ use std::iter::Peekable;
use std::time::Instant;
use anyhow::{anyhow, Context};
use fst::{IntoStreamer, Streamer};
use grenad::CompressionType;
use log::info;
use roaring::RoaringBitmap;
use serde_json::{Map, Value};
use crate::{BEU32, MergeFn, Index, FieldsIdsMap};
use crate::{BEU32, MergeFn, Index, FieldsIdsMap, ExternalDocumentsIds};
use crate::update::{AvailableDocumentsIds, UpdateIndexingStep};
use super::merge_function::merge_two_obkvs;
use super::{create_writer, create_sorter, IndexDocumentsMethod};
@ -20,7 +19,7 @@ use super::{create_writer, create_sorter, IndexDocumentsMethod};
pub struct TransformOutput {
pub primary_key: u8,
pub fields_ids_map: FieldsIdsMap,
pub external_documents_ids: fst::Map<Vec<u8>>,
pub external_documents_ids: ExternalDocumentsIds<'static>,
pub new_documents_ids: RoaringBitmap,
pub replaced_documents_ids: RoaringBitmap,
pub documents_count: usize,
@ -116,7 +115,7 @@ impl Transform<'_, '_> {
return Ok(TransformOutput {
primary_key,
fields_ids_map,
external_documents_ids: fst::Map::default(),
external_documents_ids: ExternalDocumentsIds::default(),
new_documents_ids: RoaringBitmap::new(),
replaced_documents_ids: RoaringBitmap::new(),
documents_count: 0,
@ -370,7 +369,7 @@ impl Transform<'_, '_> {
primary_key: u8,
fields_ids_map: FieldsIdsMap,
approximate_number_of_documents: usize,
external_documents_ids: fst::Map<Cow<'_, [u8]>>,
mut external_documents_ids: ExternalDocumentsIds<'_>,
progress_callback: F,
) -> anyhow::Result<TransformOutput>
where
@ -457,28 +456,17 @@ impl Transform<'_, '_> {
let mut documents_file = writer.into_inner()?;
documents_file.seek(SeekFrom::Start(0))?;
// We create the union between the existing external documents ids with the new ones.
let new_external_documents_ids = new_external_documents_ids_builder.into_map();
let union_op = fst::map::OpBuilder::new()
.add(&external_documents_ids)
.add(&new_external_documents_ids)
.r#union();
// We stream and merge the new external documents ids map with the existing one.
let before_docids_merging = Instant::now();
let mut external_documents_ids_builder = fst::MapBuilder::memory();
let mut iter = union_op.into_stream();
while let Some((external_id, vals)) = iter.next() {
assert_eq!(vals.len(), 1, "there must be exactly one document id");
external_documents_ids_builder.insert(external_id, vals[0].value)?;
}
// We merge the new external ids with existing external documents ids.
let new_external_documents_ids = new_external_documents_ids_builder.into_map();
external_documents_ids.insert_ids(&new_external_documents_ids)?;
info!("Documents external merging took {:.02?}", before_docids_merging.elapsed());
Ok(TransformOutput {
primary_key,
fields_ids_map,
external_documents_ids: external_documents_ids_builder.into_map(),
external_documents_ids: external_documents_ids.into_static(),
new_documents_ids,
replaced_documents_ids,
documents_count,
@ -531,7 +519,7 @@ impl Transform<'_, '_> {
Ok(TransformOutput {
primary_key,
fields_ids_map,
external_documents_ids: external_documents_ids.map_data(Cow::into_owned)?,
external_documents_ids: external_documents_ids.into_static(),
new_documents_ids: documents_ids,
replaced_documents_ids: RoaringBitmap::default(),
documents_count,