Merge pull request 'Recreate search index if its format is outdated' (#802) from KitaitiMakoto/Plume:invalid-index into main

Reviewed-on: https://git.joinplu.me/Plume/Plume/pulls/802
Reviewed-by: Mina Galić <me+git@igalic.co>
This commit is contained in:
kiwii 2020-07-19 12:04:43 +00:00
commit 6de9a1f1c8
4 changed files with 42 additions and 4 deletions

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@ -5,10 +5,10 @@ use crate::{
use chrono::Datelike;
use diesel::{ExpressionMethods, QueryDsl, RunQueryDsl};
use itertools::Itertools;
use std::{cmp, fs::create_dir_all, path::Path, sync::Mutex};
use std::{cmp, fs::create_dir_all, io, path::Path, sync::Mutex};
use tantivy::{
collector::TopDocs, directory::MmapDirectory, schema::*, Index, IndexReader, IndexWriter,
ReloadPolicy, Term,
ReloadPolicy, TantivyError, Term,
};
use whatlang::{detect as detect_lang, Lang};
@ -18,6 +18,7 @@ pub enum SearcherError {
WriteLockAcquisitionError,
IndexOpeningError,
IndexEditionError,
InvalidIndexDataError,
}
pub struct Searcher {
@ -135,7 +136,19 @@ impl Searcher {
.reader_builder()
.reload_policy(ReloadPolicy::Manual)
.try_into()
.map_err(|_| SearcherError::IndexCreationError)?,
.map_err(|e| {
if let TantivyError::IOError(err) = e {
let err: io::Error = err.into();
if err.kind() == io::ErrorKind::InvalidData {
// Search index was created in older Tantivy format.
SearcherError::InvalidIndexDataError
} else {
SearcherError::IndexCreationError
}
} else {
SearcherError::IndexCreationError
}
})?,
index,
})
}

27
src/main.rs Normal file → Executable file
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@ -10,6 +10,7 @@ extern crate serde_json;
#[macro_use]
extern crate validator_derive;
use chrono::Utc;
use clap::App;
use diesel::r2d2::ConnectionManager;
use plume_models::{
@ -21,6 +22,8 @@ use plume_models::{
};
use rocket_csrf::CsrfFairingBuilder;
use scheduled_thread_pool::ScheduledThreadPool;
use std::fs;
use std::path::Path;
use std::process::exit;
use std::sync::{Arc, Mutex};
use std::time::Duration;
@ -98,8 +101,30 @@ Then try to restart Plume.
}
let workpool = ScheduledThreadPool::with_name("worker {}", num_cpus::get());
// we want a fast exit here, so
let mut open_searcher =
UnmanagedSearcher::open(&CONFIG.search_index, &CONFIG.search_tokenizers);
if let Err(Error::Search(SearcherError::InvalidIndexDataError)) = open_searcher {
if UnmanagedSearcher::create(&CONFIG.search_index, &CONFIG.search_tokenizers).is_err() {
let current_path = Path::new(&CONFIG.search_index);
let backup_path = format!("{}.{}", &current_path.display(), Utc::now().timestamp());
let backup_path = Path::new(&backup_path);
fs::rename(current_path, backup_path)
.expect("main: error on backing up search index directory for recreating");
if UnmanagedSearcher::create(&CONFIG.search_index, &CONFIG.search_tokenizers).is_ok() {
if fs::remove_dir_all(backup_path).is_err() {
eprintln!(
"error on removing backup directory: {}. it remains",
backup_path.display()
);
}
} else {
panic!("main: error on recreating search index in new index format. remove search index and run `plm search init` manually");
}
}
open_searcher = UnmanagedSearcher::open(&CONFIG.search_index, &CONFIG.search_tokenizers);
}
#[allow(clippy::match_wild_err_arm)]
let searcher = match UnmanagedSearcher::open(&CONFIG.search_index, &CONFIG.search_tokenizers) {
let searcher = match open_searcher {
Err(Error::Search(e)) => match e {
SearcherError::WriteLockAcquisitionError => panic!(
r#"