734: Fix bug 2945/3021 (missing key in documents database) r=Kerollmops a=loiclec
# Pull Request
## Related issue
Fixes (partially, until merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/2945 (until we integrate the new milli bump into meilisearch).
**Note that a dump will not be sufficient to upgrade from meilisearch v0.30.2 to meilisearch v0.30.3 due to this fix** because the bug could have caused the `documents` database to be corrupted. Instead, a full manual reimport of the documents will be necessary.
## What does this PR do?
There was a bug happening when:
1. A few documents are added to the index
2. Some of these documents are soft-deleted
3. New documents are added, replacing existing ones and triggering a hard-deletion
The `IndexDocuments::execute` method would then perform the hard-deletion but forget to change the `external_document_ids` structure appropriately. As a result, the `external_document_ids` would contain keys corresponding to documents that do no exist anymore.
To fix this bug, I split the `DeleteDocuments::execute` method into two: `execute_inner` and `execute`.
- `execute_inner` returns a `DetailedDocumentDeletionResult` which says whether soft-deletion was used or not
- `execute` keeps the exact same signature and behaviour
Then, when deleting replaced documents inside `IndexDocuments::execute`, we call `DeleteDocuments::execute_inner` instead of `DeleteDocuments::execute`. If soft-deletion was used, nothing more is done. But if hard-deletion was used, we remove every reference to soft-deleted documents in the new `external_documents_ids` structure.
## Correctness
- Every other test still passes
- The reproduction test case now passes
- In a different branch ([`update-fuzz-test`](https://github.com/meilisearch/milli/pull/735)), I created a fuzz-test that reproduces the past two bugs. This fuzz test cannot find this bug through any combination of some hand-selected `DocumentAddition / DocumentDeletion / DocumentClear / SettingsUpdate` operations. In that test, each relevant operations can be executed with or without soft-deletion, and document additions can be done in batches, replacing or updating existing documents.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
729: Fix distincted exhaustive hits r=Kerollmops a=ManyTheFish
This PR changes the name and behavior of `bucket_candidates`:
- `bucket_candidates` become `initial_candidates` that is less confusing
- `initial_candidates` is no more a simple `RoaringBitmap` but an enum allowing us to precise if the candidates are exhaustive or not
- this enum ensures that any modification is allowed only if the candidates are not already exhaustive.
The bug occurred because `initial_candidates` are modified during the bucket sort allowing the estimation to be more and more precise along the search, and this was an issue when the `initial_candidates` were already exhaustive, now, if candidates are exhaustive, then no modifications are made.
Co-authored-by: ManyTheFish <many@meilisearch.com>
727: Fix bug in filter search r=Kerollmops a=loiclec
# Pull Request
## Related issue
Fixes (partially, until merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/3178
## What does this PR do?
The most important change is this one:
```rust
// in milli/src/search/facet/facet_range_search.rs, line 239
let should_stop = {
match self.right {
Bound::Included(right) => right < previous_key.left_bound,
Bound::Excluded(right) => right <= previous_key.left_bound,
Bound::Unbounded => false,
}
};
```
where the operations `<` and `<=` between the two branches were switched. This caused (very few) documents to be missing from filter results.
The second change is a simplification of the algorithm for filters such as `field = value`, where we now perform a direct query into the "Level 0" of the facet db to retrieve the docids instead of invoking the full facet search algorithm. This change is done in `milli/src/search/facet/filter.rs`.
I have added yet more insta-snapshot tests, rechecked the content of the snapshots, and added some integration tests as well.
This is purely a fix in the search algorithms. Based on this PR alone, a dump will not be necessary to switch from v0.30.1 (where this bug is present) to v0.30.2 (where this PR is merged).
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
By creating snapshots and updating the format of the existing
snapshots. The next commit will apply the fix, which will show
its effects cleanly on the old and new snapshot tests
723: Fix bug in handling of soft deleted documents when updating settings r=Kerollmops a=loiclec
# Pull Request
## Related issue
Fixes (partially, until merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/3021
## What does this PR do?
This PR fixes the bug where a `missing key in documents database` internal error message could appear when indexing documents.
When updating the settings, before clearing the database and before creating the transform output, we now modify the `ExternalDocumentsIds` structure to get rid of all references to soft deleted document ids in its FSTs.
It used to be that updating the settings would clear the soft-deleted document ids, but keep the original `ExternalDocumentsIds` structure. As a consequence of this, when processing a future document addition, we could wrongly believe that a document was being replaced when, in fact, it was a completely new document. See the tests `bug_3021_first`, `bug_3021_second`, and `bug_3021` for a minimal test case that would have reproduced the issue.
We need to take special care to:
- evaluate how users should update to v0.30.1 (containing this fix): dump? reimporting all documents from scratch?
- understand IF/HOW this bug could have caused duplicate documents to be returned
- and evaluate the correctness of the fix, of course :)
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
719: Add more members of `filter_parser` to `milli::` & `From<&str>` implementation for `Token` r=Kerollmops a=GregoryConrad
## What does this PR do?
The current `milli::Filter` and `milli::FilterCondition` APIs require working with some members of `filter_parser` directly that `milli::` does *not* re-export to its users (at least when not parsing input using `parse`). Also, using `filter_parser` does not make sense when using milli from an embedded context where there is no query to parse.
Instead of reworking `milli::Filter` and `milli::FilterCondition`, this PR adds two non-breaking changes that ease the use of milli:
- Re-exports more members of the dependent version of `filter_parser` in `milli`
- Implements `From<&str>` for `filter_parser::Token`
- This will also allow some basic tests that need to create a `Token` from a string to avoid some boilerplate.
In conjunction, both of these will allow milli users to easily create a `Token` from a `&str` without needing to add `filter_parser` as an extra dependency.
Note: I wanted to use `FromStr` for the `From` implementation; however, it requires returning a `Result` which is not needed for the conversion. Thus, I just left it as `From<&str>`.
Co-authored-by: Gregory Conrad <gregorysconrad@gmail.com>
722: Geosearch for zero radius r=irevoire a=amab8901
# Pull Request
## Related issue
Fixes#3167 (https://github.com/meilisearch/meilisearch/issues/3167)
## What does this PR do?
- allows Geosearch with zero radius to return the specified location when the coordinates match perfectly (instead of returning nothing). See link for more details.
- new attempt on https://github.com/meilisearch/milli/pull/713
## PR checklist
Please check if your PR fulfills the following requirements:
- [ X ] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [ X ] Have you read the contributing guidelines?
- [ X ] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: amab8901 <amab8901@protonmail.com>
Co-authored-by: Tamo <irevoire@protonmail.ch>
720: Make soft deletion optional in document addition and deletion + add lots of tests r=irevoire a=loiclec
# Pull Request
## What does this PR do?
When debugging recent issues, I created a few unit tests in the hopes reproducing the bugs I was looking for. In the end, I didn't find any, but I thought it would still be good to keep those tests.
More importantly, I added a field to the `DeleteDocuments` and `IndexDocuments` builders, called `disable_soft_deletion`. If set to `true`, the indexing/deletion will never add documents to the `soft_deleted_documents_ids` and instead perform a real deletion of the documents from the databases.
For the new tests, I have:
- Improved the insta-snapshot format of the `external_documents_ids` structure
- Added more tests for the facet DB indexing, deletion, and search algorithms, making sure to test them when the facet DB contains strings (instead of numbers) as well.
- Added more tests for the incremental indexing of the prefix proximity databases. For example, to see if documents are replaced correctly and if common prefixes are deleted correctly.
- Added tests that mix soft deletion and hard deletion, including when processing batches of document updates.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
706: Limit the reindexing caused by updating settings when not needed r=curquiza a=GregoryConrad
## What does this PR do?
When updating index settings using `update::Settings`, sometimes a `reindex` of `update::Settings` is triggered when it doesn't need to be. This PR aims to prevent those unnecessary `reindex` calls.
For reference, here is a snippet from the current `execute` method in `update::Settings`:
```rust
// ...
if stop_words_updated
|| faceted_updated
|| synonyms_updated
|| searchable_updated
|| exact_attributes_updated
{
self.reindex(&progress_callback, &should_abort, old_fields_ids_map)?;
}
```
- [x] `faceted_updated` - looks good as-is ✅
- [x] `stop_words_updated` - looks good as-is ✅
- [x] `synonyms_updated` - looks good as-is ✅
- [x] `searchable_updated` - fixed in this PR
- [x] `exact_attributes_updated` - fixed in this PR
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Gregory Conrad <gregorysconrad@gmail.com>
716: Bump Swatinem/rust-cache from 2.0.1 to 2.2.0 r=curquiza a=dependabot[bot]
Bumps [Swatinem/rust-cache](https://github.com/Swatinem/rust-cache) from 2.0.1 to 2.2.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/Swatinem/rust-cache/releases">Swatinem/rust-cache's releases</a>.</em></p>
<blockquote>
<h2>v2.2.0</h2>
<ul>
<li>Add new <code>save-if</code> option to always restore, but only conditionally save the cache.</li>
</ul>
<h2>v2.1.0</h2>
<ul>
<li>Only hash <code>Cargo.{lock,toml}</code> files in the configured workspace directories.</li>
</ul>
<h2>v2.0.2</h2>
<ul>
<li>Avoid calling cargo metadata on pre-cleanup.</li>
<li>Added <code>prefix-key</code>, <code>cache-directories</code> and <code>cache-targets</code> options.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md">Swatinem/rust-cache's changelog</a>.</em></p>
<blockquote>
<h2>2.2.0</h2>
<ul>
<li>Add new <code>save-if</code> option to always restore, but only conditionally save the cache.</li>
</ul>
<h2>2.1.0</h2>
<ul>
<li>Only hash <code>Cargo.{lock,toml}</code> files in the configured workspace directories.</li>
</ul>
<h2>2.0.2</h2>
<ul>
<li>Avoid calling <code>cargo metadata</code> on pre-cleanup.</li>
<li>Added <code>prefix-key</code>, <code>cache-directories</code> and <code>cache-targets</code> options.</li>
</ul>
<h2>2.0.1</h2>
<ul>
<li>Primarily just updating dependencies to fix GitHub deprecation notices.</li>
</ul>
<h2>2.0.0</h2>
<ul>
<li>The action code was refactored to allow for caching multiple workspaces and
different <code>target</code> directory layouts.</li>
<li>The <code>working-directory</code> and <code>target-dir</code> input options were replaced by a
single <code>workspaces</code> option that has the form of <code>$workspace -> $target</code>.</li>
<li>Support for considering <code>env-vars</code> as part of the cache key.</li>
<li>The <code>sharedKey</code> input option was renamed to <code>shared-key</code> for consistency.</li>
</ul>
<h2>1.4.0</h2>
<ul>
<li>Clean both <code>debug</code> and <code>release</code> target directories.</li>
</ul>
<h2>1.3.0</h2>
<ul>
<li>Use Rust toolchain file as additional cache key.</li>
<li>Allow for a configurable target-dir.</li>
</ul>
<h2>1.2.0</h2>
<ul>
<li>Cache <code>~/.cargo/bin</code>.</li>
<li>Support for custom <code>$CARGO_HOME</code>.</li>
<li>Add a <code>cache-hit</code> output.</li>
<li>Add a new <code>sharedKey</code> option that overrides the automatic job-name based key.</li>
</ul>
<h2>1.1.0</h2>
<ul>
<li>Add a new <code>working-directory</code> input.</li>
<li>Support caching git dependencies.</li>
<li>Lots of other improvements.</li>
</ul>
<h2>1.0.2</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="359a70e43a"><code>359a70e</code></a> 2.2.0</li>
<li><a href="ecee04e7b3"><code>ecee04e</code></a> feat: add save-if option, closes <a href="https://github-redirect.dependabot.com/Swatinem/rust-cache/issues/66">#66</a> (<a href="https://github-redirect.dependabot.com/Swatinem/rust-cache/issues/91">#91</a>)</li>
<li><a href="b894d59a8d"><code>b894d59</code></a> 2.1.0</li>
<li><a href="e78327dd9e"><code>e78327d</code></a> small code style improvements, README and CHANGELOG updates</li>
<li><a href="ccdddcc049"><code>ccdddcc</code></a> only hash Cargo.toml/Cargo.lock that belong to a configured workspace (<a href="https://github-redirect.dependabot.com/Swatinem/rust-cache/issues/90">#90</a>)</li>
<li><a href="b5ec9edd91"><code>b5ec9ed</code></a> 2.0.2</li>
<li><a href="3f2513fdf4"><code>3f2513f</code></a> avoid calling cargo metadata on pre-cleanup</li>
<li><a href="19c46583c5"><code>19c4658</code></a> update dependencies</li>
<li><a href="b8e72aae83"><code>b8e72aa</code></a> Added <code>prefix-key</code> <code>cache-directories</code> and <code>cache-targets</code> options (<a href="https://github-redirect.dependabot.com/Swatinem/rust-cache/issues/85">#85</a>)</li>
<li>See full diff in <a href="https://github.com/Swatinem/rust-cache/compare/v2.0.1...v2.2.0">compare view</a></li>
</ul>
</details>
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
708: Reduce memory usage of the MatchingWords structure r=ManyTheFish a=loiclec
# Pull Request
## Related issue
Fixes (partially) https://github.com/meilisearch/meilisearch/issues/3115
## What does this PR do?
1. Reduces the memory usage caused by the creation of a 10-word query tree by 20x.
This is done by deduplicating the `MatchingWord` values, which are heavy because of their inner DFA. The deduplication works by wrapping each `MatchingWord` in a reference-counted box and using a hash map to determine whether a `MatchingWord` DFA already exists for a certain signature, or whether a new one needs to be built.
2. Avoid the worst-case scenario of creating a `MatchingWord` for extremely long words that cannot be indexed by milli.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
712: Fix bulk facet indexing bug r=Kerollmops a=loiclec
# Pull Request
## Related issue
Fixes (partially, until merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/3165
## What does this PR do?
Fixes a bug where indexing certain numbers of filterable attribute values in bulk led to corrupted facet databases. This was due to a lossy integer conversion which would ultimately prevent entire levels of the facet database to be written into LMDB.
More specifically, this change was made:
```diff
- if cur_writer_len as u8 >= self.min_level_size {
+ if cur_writer_len >= self.min_level_size as usize {
```
I also checked other comparisons to `min_level_size` and other conversions such as `x as u8` in this part of the codebase.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
711: Replace deprecated gh actions r=curquiza a=pnhatminh
# Pull Request
## Related issue
Fixes#678
## What does this PR do?
- Replace deprecated github action command with newly defined command.
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Minh Pham <minh.pham@codelink.io>
707: Add all_obkv_to_json function r=Kerollmops a=GregoryConrad
## What does this PR do?
When embedding milli in an application (other than Meilisearch), it often makes sense to not use the `displayed_attributes` functionality and instead just use milli as a full document store. Thus, this PR adds a function, `all_obkv_to_json`, to supplement the already exposed `milli::obkv_to_json` so that those embedding milli *do not* need to deal with `displayed_attributes` if they don't need to.
~This PR also introduces a slight breaking change: `obkv_to_json` now accepts a reference to `obkv::KvReaderU16` instead of taking ownership of it. As far as I can tell, this seems like a change for the better (`obkv_to_json` only acts upon `obkv` rather than consuming it), but I can change it back if you so desire.~ (reverted in [935a724](935a724c57))
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Gregory Conrad <gregorysconrad@gmail.com>
