mirror of
https://github.com/meilisearch/meilisearch.git
synced 2024-11-22 18:17:39 +08:00
Index by writing directly into LMDB
This commit is contained in:
Kerollmops
parent
8453828a65
commit
5f0088594b
111
Cargo.lock
generated
111
Cargo.lock
generated
@ -1,11 +1,5 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
[[package]]
|
||||
name = "adler32"
|
||||
version = "1.0.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
|
||||
|
||||
[[package]]
|
||||
name = "anyhow"
|
||||
version = "1.0.31"
|
||||
@ -159,9 +153,6 @@ name = "cc"
|
||||
version = "1.0.54"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7bbb73db36c1246e9034e307d0fba23f9a2e251faa47ade70c1bd252220c8311"
|
||||
dependencies = [
|
||||
"jobserver",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
@ -195,21 +186,6 @@ version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "79bb3adfaf5f75d24b01aee375f7555907840fa2800e5ec8fa3b9e2031830173"
|
||||
|
||||
[[package]]
|
||||
name = "crc32c"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "77ba37ef26c12988c1cee882d522d65e1d5d2ad8c3864665b88ee92767ed84c5"
|
||||
|
||||
[[package]]
|
||||
name = "crc32fast"
|
||||
version = "1.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "criterion"
|
||||
version = "0.3.2"
|
||||
@ -347,18 +323,6 @@ version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
|
||||
|
||||
[[package]]
|
||||
name = "flate2"
|
||||
version = "1.0.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2cfff41391129e0a856d6d822600b8d71179d46879e310417eb9c762eb178b42"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"crc32fast",
|
||||
"libc",
|
||||
"miniz_oxide",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fnv"
|
||||
version = "1.0.7"
|
||||
@ -523,12 +487,6 @@ dependencies = [
|
||||
"wasi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "glob"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
|
||||
|
||||
[[package]]
|
||||
name = "h2"
|
||||
version = "0.2.5"
|
||||
@ -752,15 +710,6 @@ dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "jobserver"
|
||||
version = "0.1.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "js-sys"
|
||||
version = "0.3.40"
|
||||
@ -861,8 +810,6 @@ dependencies = [
|
||||
"levenshtein_automata",
|
||||
"memmap",
|
||||
"once_cell",
|
||||
"oxidized-mtbl",
|
||||
"rayon",
|
||||
"roaring",
|
||||
"serde",
|
||||
"slice-group-by",
|
||||
@ -936,15 +883,6 @@ dependencies = [
|
||||
"unicase 2.6.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "miniz_oxide"
|
||||
version = "0.3.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "aa679ff6578b1cddee93d7e82e263b94a575e0bfced07284eb0c037c1d2416a5"
|
||||
dependencies = [
|
||||
"adler32",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "mio"
|
||||
version = "0.6.22"
|
||||
@ -1075,18 +1013,6 @@ version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
|
||||
|
||||
[[package]]
|
||||
name = "oxidized-mtbl"
|
||||
version = "0.1.0"
|
||||
source = "git+https://github.com/Kerollmops/oxidized-mtbl.git?rev=9451be8#9451be8829562f7d1f8d34aa3ecb81c5106a0623"
|
||||
dependencies = [
|
||||
"byteorder",
|
||||
"crc32c",
|
||||
"flate2",
|
||||
"snap",
|
||||
"zstd",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "page_size"
|
||||
version = "0.4.2"
|
||||
@ -1642,12 +1568,6 @@ version = "1.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
|
||||
|
||||
[[package]]
|
||||
name = "snap"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f7fb9b0bb877b35a1cc1474a3b43d9c226a2625311760cdda2cbccbc0c7a8376"
|
||||
|
||||
[[package]]
|
||||
name = "socket2"
|
||||
version = "0.3.12"
|
||||
@ -2148,34 +2068,3 @@ dependencies = [
|
||||
"syn",
|
||||
"synstructure",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd"
|
||||
version = "0.5.2+zstd.1.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "644352b10ce7f333d6e0af85bd4f5322dc449416dc1211c6308e95bca8923db4"
|
||||
dependencies = [
|
||||
"zstd-safe",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd-safe"
|
||||
version = "2.0.4+zstd.1.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7113c0c9aed2c55181f2d9f5b0a36e7d2c0183b11c058ab40b35987479efe4d7"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"zstd-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd-sys"
|
||||
version = "1.4.16+zstd.1.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c442965efc45353be5a9b9969c9b0872fff6828c7e06d118dda2cb2d0bb11d5a"
|
||||
dependencies = [
|
||||
"cc",
|
||||
"glob",
|
||||
"itertools",
|
||||
"libc",
|
||||
]
|
||||
|
||||
@ -18,8 +18,6 @@ jemallocator = "0.3.2"
|
||||
levenshtein_automata = { version = "0.2.0", features = ["fst_automaton"] }
|
||||
memmap = "0.7.0"
|
||||
once_cell = "1.4.0"
|
||||
oxidized-mtbl = { git = "https://github.com/Kerollmops/oxidized-mtbl.git", rev = "9451be8" }
|
||||
rayon = "1.3.0"
|
||||
roaring = { git = "https://github.com/Kerollmops/roaring-rs.git", branch = "deserialize-from-slice" }
|
||||
slice-group-by = "0.2.6"
|
||||
smallstr = "0.2.0"
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||||
|
||||
@ -1,22 +1,21 @@
|
||||
use std::collections::hash_map::Entry;
|
||||
use std::collections::{HashMap, BTreeSet, BTreeMap};
|
||||
use std::collections::{HashMap, BTreeSet};
|
||||
use std::convert::{TryFrom, TryInto};
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||||
use std::fs::File;
|
||||
use std::io;
|
||||
use std::iter::FromIterator;
|
||||
use std::path::PathBuf;
|
||||
use std::sync::atomic::{AtomicUsize, Ordering};
|
||||
|
||||
use anyhow::Context;
|
||||
use cow_utils::CowUtils;
|
||||
use fst::{Streamer, IntoStreamer};
|
||||
use fst::Streamer;
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||||
use heed::EnvOpenOptions;
|
||||
use heed::types::*;
|
||||
use oxidized_mtbl::{Reader, ReaderOptions, Writer, Merger, MergerOptions};
|
||||
use rayon::prelude::*;
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||||
use roaring::RoaringBitmap;
|
||||
use slice_group_by::StrGroupBy;
|
||||
use structopt::StructOpt;
|
||||
|
||||
use mega_mini_indexer::{FastMap4, SmallVec32, Index, DocumentId, AttributeId};
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||||
use mega_mini_indexer::{BEU32, Index, DocumentId};
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||||
const MAX_POSITION: usize = 1000;
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const MAX_ATTRIBUTES: usize = u32::max_value() as usize / MAX_POSITION;
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||||
@ -40,218 +39,12 @@ struct Opt {
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||||
#[structopt(long = "db", parse(from_os_str))]
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database: PathBuf,
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|
||||
/// Number of parallel jobs, defaults to # of CPUs.
|
||||
#[structopt(short, long)]
|
||||
jobs: Option<usize>,
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||||
|
||||
/// Files to index in parallel.
|
||||
files_to_index: Vec<PathBuf>,
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||||
/// CSV file to index.
|
||||
csv_file: Option<PathBuf>,
|
||||
}
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||||
|
||||
struct Indexed {
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||||
fst: fst::Set<Vec<u8>>,
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||||
postings_attrs: FastMap4<SmallVec32<u8>, RoaringBitmap>,
|
||||
prefix_postings_attrs: FastMap4<SmallVec32<u8>, RoaringBitmap>,
|
||||
postings_ids: FastMap4<SmallVec32<u8>, FastMap4<AttributeId, RoaringBitmap>>,
|
||||
prefix_postings_ids: FastMap4<SmallVec32<u8>, FastMap4<AttributeId, RoaringBitmap>>,
|
||||
headers: Vec<u8>,
|
||||
documents: Vec<(DocumentId, Vec<u8>)>,
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
struct MtblKvStore(Option<File>);
|
||||
|
||||
impl MtblKvStore {
|
||||
fn from_indexed(mut indexed: Indexed) -> anyhow::Result<MtblKvStore> {
|
||||
eprintln!("{:?}: Creating an MTBL store from an Indexed...", rayon::current_thread_index());
|
||||
|
||||
let outfile = tempfile::tempfile()?;
|
||||
let mut out = Writer::new(outfile, None)?;
|
||||
|
||||
out.add(b"\0headers", indexed.headers)?;
|
||||
out.add(b"\0words-fst", indexed.fst.as_fst().as_bytes())?;
|
||||
|
||||
// postings ids keys are all prefixed by a '1'
|
||||
let mut key = vec![0];
|
||||
let mut buffer = Vec::new();
|
||||
|
||||
// We must write the postings attrs
|
||||
key[0] = 1;
|
||||
// We must write the postings ids in order for mtbl therefore
|
||||
// we iterate over the fst to read the words in order
|
||||
let mut stream = indexed.fst.stream();
|
||||
while let Some(word) = stream.next() {
|
||||
if let Some(attrs) = indexed.postings_attrs.remove(word) {
|
||||
key.truncate(1);
|
||||
key.extend_from_slice(word);
|
||||
// We serialize the attrs ids into a buffer
|
||||
buffer.clear();
|
||||
attrs.serialize_into(&mut buffer)?;
|
||||
// that we write under the generated key into MTBL
|
||||
out.add(&key, &buffer).unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
// We must write the prefix postings attrs
|
||||
key[0] = 2;
|
||||
// We must write the postings ids in order for mtbl therefore
|
||||
// we iterate over the fst to read the words in order
|
||||
let mut stream = indexed.fst.stream();
|
||||
while let Some(word) = stream.next() {
|
||||
for i in 1..=word.len() {
|
||||
let prefix = &word[..i];
|
||||
if let Some(attrs) = indexed.prefix_postings_attrs.remove(prefix) {
|
||||
key.truncate(1);
|
||||
key.extend_from_slice(prefix);
|
||||
// We serialize the attrs ids into a buffer
|
||||
buffer.clear();
|
||||
attrs.serialize_into(&mut buffer)?;
|
||||
// that we write under the generated key into MTBL
|
||||
out.add(&key, &buffer).unwrap();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// We must write the postings ids
|
||||
key[0] = 3;
|
||||
// We must write the postings ids in order for mtbl therefore
|
||||
// we iterate over the fst to read the words in order
|
||||
let mut stream = indexed.fst.stream();
|
||||
while let Some(word) = stream.next() {
|
||||
key.truncate(1);
|
||||
key.extend_from_slice(word);
|
||||
if let Some(attrs) = indexed.postings_ids.remove(word) {
|
||||
let attrs: BTreeMap<_, _> = attrs.into_iter().collect();
|
||||
// We iterate over all the attributes containing the documents ids
|
||||
for (attr, ids) in attrs {
|
||||
// we postfix the word by the attribute id
|
||||
key.extend_from_slice(&attr.to_be_bytes());
|
||||
// We serialize the document ids into a buffer
|
||||
buffer.clear();
|
||||
ids.serialize_into(&mut buffer)?;
|
||||
// that we write under the generated key into MTBL
|
||||
out.add(&key, &buffer).unwrap();
|
||||
// And cleanup the attribute id afterward (u32 = 4 * u8)
|
||||
key.truncate(key.len() - 4);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// We must write the prefix postings ids
|
||||
key[0] = 4;
|
||||
let mut stream = indexed.fst.stream();
|
||||
while let Some(word) = stream.next() {
|
||||
for i in 1..=word.len() {
|
||||
let prefix = &word[..i];
|
||||
key.truncate(1);
|
||||
key.extend_from_slice(prefix);
|
||||
if let Some(attrs) = indexed.prefix_postings_ids.remove(prefix) {
|
||||
let attrs: BTreeMap<_, _> = attrs.into_iter().collect();
|
||||
// We iterate over all the attributes containing the documents ids
|
||||
for (attr, ids) in attrs {
|
||||
// we postfix the word by the attribute id
|
||||
key.extend_from_slice(&attr.to_be_bytes());
|
||||
// We serialize the document ids into a buffer
|
||||
buffer.clear();
|
||||
ids.serialize_into(&mut buffer)?;
|
||||
// that we write under the generated key into MTBL
|
||||
out.add(&key, &buffer).unwrap();
|
||||
// And cleanup the attribute id afterward (u32 = 4 * u8)
|
||||
key.truncate(key.len() - 4);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// postings ids keys are all prefixed by a '4'
|
||||
key[0] = 5;
|
||||
indexed.documents.sort_unstable();
|
||||
for (id, content) in indexed.documents {
|
||||
key.truncate(1);
|
||||
key.extend_from_slice(&id.to_be_bytes());
|
||||
out.add(&key, content).unwrap();
|
||||
}
|
||||
|
||||
let out = out.into_inner()?;
|
||||
|
||||
eprintln!("{:?}: MTBL store created!", rayon::current_thread_index());
|
||||
Ok(MtblKvStore(Some(out)))
|
||||
}
|
||||
|
||||
fn merge(key: &[u8], values: &[Vec<u8>]) -> Option<Vec<u8>> {
|
||||
if key == b"\0words-fst" {
|
||||
let fsts: Vec<_> = values.iter().map(|v| fst::Set::new(v).unwrap()).collect();
|
||||
|
||||
// Union of the two FSTs
|
||||
let mut op = fst::set::OpBuilder::new();
|
||||
fsts.iter().for_each(|fst| op.push(fst.into_stream()));
|
||||
let op = op.r#union();
|
||||
|
||||
let mut build = fst::SetBuilder::memory();
|
||||
build.extend_stream(op.into_stream()).unwrap();
|
||||
Some(build.into_inner().unwrap())
|
||||
}
|
||||
else if key == b"\0headers" {
|
||||
assert!(values.windows(2).all(|vs| vs[0] == vs[1]));
|
||||
Some(values[0].to_vec())
|
||||
}
|
||||
// We either merge postings attrs, prefix postings or postings ids.
|
||||
else if key[0] == 1 || key[0] == 2 || key[0] == 3 || key[0] == 4 {
|
||||
let mut first = RoaringBitmap::deserialize_from(values[0].as_slice()).unwrap();
|
||||
|
||||
for value in &values[1..] {
|
||||
let bitmap = RoaringBitmap::deserialize_from(value.as_slice()).unwrap();
|
||||
first.union_with(&bitmap);
|
||||
}
|
||||
|
||||
let mut vec = Vec::new();
|
||||
first.serialize_into(&mut vec).unwrap();
|
||||
Some(vec)
|
||||
}
|
||||
else if key[0] == 5 {
|
||||
assert!(values.windows(2).all(|vs| vs[0] == vs[1]));
|
||||
Some(values[0].to_vec())
|
||||
}
|
||||
else {
|
||||
panic!("wut? {:?}", key)
|
||||
}
|
||||
}
|
||||
|
||||
fn from_many<F>(stores: Vec<MtblKvStore>, mut f: F) -> anyhow::Result<()>
|
||||
where F: FnMut(&[u8], &[u8]) -> anyhow::Result<()>
|
||||
{
|
||||
eprintln!("{:?}: Merging {} MTBL stores...", rayon::current_thread_index(), stores.len());
|
||||
|
||||
let mmaps: Vec<_> = stores.iter().flat_map(|m| {
|
||||
m.0.as_ref().map(|f| unsafe { memmap::Mmap::map(f).unwrap() })
|
||||
}).collect();
|
||||
|
||||
let sources = mmaps.iter().map(|mmap| {
|
||||
Reader::new(&mmap, ReaderOptions::default()).unwrap()
|
||||
}).collect();
|
||||
|
||||
let opt = MergerOptions { merge: MtblKvStore::merge };
|
||||
let mut merger = Merger::new(sources, opt);
|
||||
|
||||
let mut iter = merger.iter();
|
||||
while let Some((k, v)) = iter.next() {
|
||||
(f)(k, v)?;
|
||||
}
|
||||
|
||||
eprintln!("{:?}: MTBL stores merged!", rayon::current_thread_index());
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
fn index_csv(mut rdr: csv::Reader<File>) -> anyhow::Result<MtblKvStore> {
|
||||
eprintln!("{:?}: Indexing into an Indexed...", rayon::current_thread_index());
|
||||
|
||||
let mut document = csv::StringRecord::new();
|
||||
let mut postings_attrs = FastMap4::default();
|
||||
let prefix_postings_attrs = FastMap4::default();
|
||||
let mut postings_ids = FastMap4::default();
|
||||
let prefix_postings_ids = FastMap4::default();
|
||||
let mut documents = Vec::new();
|
||||
fn index_csv<R: io::Read>(wtxn: &mut heed::RwTxn, mut rdr: csv::Reader<R>, index: &Index) -> anyhow::Result<()> {
|
||||
eprintln!("Indexing into LMDB...");
|
||||
|
||||
// Write the headers into a Vec of bytes.
|
||||
let headers = rdr.headers()?;
|
||||
@ -259,6 +52,8 @@ fn index_csv(mut rdr: csv::Reader<File>) -> anyhow::Result<MtblKvStore> {
|
||||
writer.write_byte_record(headers.as_byte_record())?;
|
||||
let headers = writer.into_inner()?;
|
||||
|
||||
let mut document = csv::StringRecord::new();
|
||||
|
||||
while rdr.read_record(&mut document)? {
|
||||
let document_id = ID_GENERATOR.fetch_add(1, Ordering::SeqCst);
|
||||
let document_id = DocumentId::try_from(document_id).context("Generated id is too big")?;
|
||||
@ -269,14 +64,26 @@ fn index_csv(mut rdr: csv::Reader<File>) -> anyhow::Result<MtblKvStore> {
|
||||
let word = word.cow_to_lowercase();
|
||||
let position = (attr * 1000 + pos) as u32;
|
||||
|
||||
// We save the positions where this word has been seen.
|
||||
postings_attrs.entry(SmallVec32::from(word.as_bytes()))
|
||||
.or_insert_with(RoaringBitmap::new).insert(position);
|
||||
// ------ merge word positions --------
|
||||
|
||||
// We save the documents ids under the position and word we have seen it.
|
||||
postings_ids.entry(SmallVec32::from(word.as_bytes()))
|
||||
.or_insert_with(FastMap4::default).entry(position) // positions
|
||||
.or_insert_with(RoaringBitmap::new).insert(document_id); // document ids
|
||||
let ids = match index.word_positions.get(wtxn, &word)? {
|
||||
Some(mut ids) => { ids.insert(position); ids },
|
||||
None => RoaringBitmap::from_iter(Some(position)),
|
||||
};
|
||||
|
||||
index.word_positions.put(wtxn, &word, &ids)?;
|
||||
|
||||
// ------ merge word position documents ids --------
|
||||
|
||||
let mut key = word.as_bytes().to_vec();
|
||||
key.extend_from_slice(&position.to_be_bytes());
|
||||
|
||||
let ids = match index.word_position_docids.get(wtxn, &key)? {
|
||||
Some(mut ids) => { ids.insert(document_id); ids },
|
||||
None => RoaringBitmap::from_iter(Some(document_id)),
|
||||
};
|
||||
|
||||
index.word_position_docids.put(wtxn, &key, &ids)?;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -285,66 +92,21 @@ fn index_csv(mut rdr: csv::Reader<File>) -> anyhow::Result<MtblKvStore> {
|
||||
let mut writer = csv::WriterBuilder::new().has_headers(false).from_writer(Vec::new());
|
||||
writer.write_byte_record(document.as_byte_record())?;
|
||||
let document = writer.into_inner()?;
|
||||
documents.push((document_id, document));
|
||||
index.documents.put(wtxn, &BEU32::new(document_id), &document)?;
|
||||
}
|
||||
|
||||
// We store the words from the postings.
|
||||
let mut new_words = BTreeSet::default();
|
||||
for (word, _new_ids) in &postings_ids {
|
||||
let iter = index.word_positions.as_polymorph().iter::<_, Str, DecodeIgnore>(wtxn)?;
|
||||
for result in iter {
|
||||
let (word, ()) = result?;
|
||||
new_words.insert(word.clone());
|
||||
}
|
||||
|
||||
let new_words_fst = fst::Set::from_iter(new_words.iter().map(SmallVec32::as_ref))?;
|
||||
let new_words_fst = fst::Set::from_iter(new_words)?;
|
||||
|
||||
let indexed = Indexed {
|
||||
fst: new_words_fst,
|
||||
headers,
|
||||
postings_attrs,
|
||||
prefix_postings_attrs,
|
||||
postings_ids,
|
||||
prefix_postings_ids,
|
||||
documents,
|
||||
};
|
||||
eprintln!("{:?}: Indexed created!", rayon::current_thread_index());
|
||||
|
||||
MtblKvStore::from_indexed(indexed)
|
||||
}
|
||||
|
||||
// TODO merge with the previous values
|
||||
fn writer(wtxn: &mut heed::RwTxn, index: &Index, key: &[u8], val: &[u8]) -> anyhow::Result<()> {
|
||||
if key == b"\0words-fst" {
|
||||
// Write the words fst
|
||||
index.main.put::<_, Str, ByteSlice>(wtxn, "words-fst", val)?;
|
||||
}
|
||||
else if key == b"\0headers" {
|
||||
// Write the headers
|
||||
index.main.put::<_, Str, ByteSlice>(wtxn, "headers", val)?;
|
||||
}
|
||||
else if key.starts_with(&[1]) {
|
||||
// Write the postings lists
|
||||
index.word_positions.as_polymorph()
|
||||
.put::<_, ByteSlice, ByteSlice>(wtxn, &key[1..], val)?;
|
||||
}
|
||||
else if key.starts_with(&[2]) {
|
||||
// Write the prefix postings lists
|
||||
index.prefix_word_positions.as_polymorph()
|
||||
.put::<_, ByteSlice, ByteSlice>(wtxn, &key[1..], val)?;
|
||||
}
|
||||
else if key.starts_with(&[3]) {
|
||||
// Write the postings lists
|
||||
index.word_position_docids.as_polymorph()
|
||||
.put::<_, ByteSlice, ByteSlice>(wtxn, &key[1..], val)?;
|
||||
}
|
||||
else if key.starts_with(&[4]) {
|
||||
// Write the prefix postings lists
|
||||
index.prefix_word_position_docids.as_polymorph()
|
||||
.put::<_, ByteSlice, ByteSlice>(wtxn, &key[1..], val)?;
|
||||
}
|
||||
else if key.starts_with(&[5]) {
|
||||
// Write the documents
|
||||
index.documents.as_polymorph()
|
||||
.put::<_, ByteSlice, ByteSlice>(wtxn, &key[1..], val)?;
|
||||
}
|
||||
index.put_fst(wtxn, &new_words_fst)?;
|
||||
index.put_headers(wtxn, &headers)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
@ -392,10 +154,6 @@ fn compute_words_attributes_docids(wtxn: &mut heed::RwTxn, index: &Index) -> any
|
||||
fn main() -> anyhow::Result<()> {
|
||||
let opt = Opt::from_args();
|
||||
|
||||
if let Some(jobs) = opt.jobs {
|
||||
rayon::ThreadPoolBuilder::new().num_threads(jobs).build_global()?;
|
||||
}
|
||||
|
||||
std::fs::create_dir_all(&opt.database)?;
|
||||
let env = EnvOpenOptions::new()
|
||||
.map_size(100 * 1024 * 1024 * 1024) // 100 GB
|
||||
@ -405,23 +163,24 @@ fn main() -> anyhow::Result<()> {
|
||||
|
||||
let index = Index::new(&env)?;
|
||||
|
||||
let stores: Vec<_> = opt.files_to_index
|
||||
.into_par_iter()
|
||||
.map(|path| {
|
||||
let rdr = csv::Reader::from_path(path)?;
|
||||
index_csv(rdr)
|
||||
})
|
||||
.inspect(|_| {
|
||||
eprintln!("Total number of documents seen so far is {}", ID_GENERATOR.load(Ordering::Relaxed))
|
||||
})
|
||||
.collect::<Result<_, _>>()?;
|
||||
|
||||
eprintln!("We are writing into LMDB...");
|
||||
let mut wtxn = env.write_txn()?;
|
||||
MtblKvStore::from_many(stores, |k, v| writer(&mut wtxn, &index, k, v))?;
|
||||
|
||||
match opt.csv_file {
|
||||
Some(path) => {
|
||||
let rdr = csv::Reader::from_path(path)?;
|
||||
index_csv(&mut wtxn, rdr, &index)?;
|
||||
},
|
||||
None => {
|
||||
let rdr = csv::Reader::from_reader(io::stdin());
|
||||
index_csv(&mut wtxn, rdr, &index)?;
|
||||
}
|
||||
};
|
||||
|
||||
compute_words_attributes_docids(&mut wtxn, &index)?;
|
||||
let count = index.documents.len(&wtxn)?;
|
||||
|
||||
wtxn.commit()?;
|
||||
|
||||
eprintln!("Wrote {} documents into LMDB", count);
|
||||
|
||||
Ok(())
|
||||
|
||||
@ -63,10 +63,18 @@ impl Index {
|
||||
})
|
||||
}
|
||||
|
||||
pub fn put_headers(&self, wtxn: &mut heed::RwTxn, headers: &[u8]) -> anyhow::Result<()> {
|
||||
Ok(self.main.put::<_, Str, ByteSlice>(wtxn, "headers", headers)?)
|
||||
}
|
||||
|
||||
pub fn headers<'t>(&self, rtxn: &'t heed::RoTxn) -> heed::Result<Option<&'t [u8]>> {
|
||||
self.main.get::<_, Str, ByteSlice>(rtxn, "headers")
|
||||
}
|
||||
|
||||
pub fn put_fst<A: AsRef<[u8]>>(&self, wtxn: &mut heed::RwTxn, fst: &fst::Set<A>) -> anyhow::Result<()> {
|
||||
Ok(self.main.put::<_, Str, ByteSlice>(wtxn, "words-fst", fst.as_fst().as_bytes())?)
|
||||
}
|
||||
|
||||
pub fn fst<'t>(&self, rtxn: &'t heed::RoTxn) -> anyhow::Result<Option<fst::Set<&'t [u8]>>> {
|
||||
match self.main.get::<_, Str, ByteSlice>(rtxn, "words-fst")? {
|
||||
Some(bytes) => Ok(Some(fst::Set::new(bytes)?)),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user