PSMDB-2163 vector search#1147
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Pull request overview
Adds initial documentation and site navigation for PSMDB’s mongot-based Search features (Vector Search / Full-text Search), covering overview, architecture, compatibility, and installation/configuration.
Changes:
- Extends MkDocs navigation with a new Search section under Features.
- Adds new documentation pages for Search overview, vector search architecture, and compatibility requirements.
- Adds initial
mongotinstall/configure docs (with configuration stubbed out).
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 17 comments.
Show a summary per file
| File | Description |
|---|---|
| mkdocs-base.yml | Adds Search section to the site nav (currently points to non-existent install pages). |
| docs/overview-search.md | Introduces Search overview and supported query/index types. |
| docs/vector-search-architecture.md | Documents mongod/mongot architecture and request flow (includes missing image reference). |
| docs/vector-search-compatibility.md | Lists system requirements and version/OS compatibility (needs terminology alignment). |
| docs/install-mongot.md | Provides tarball-based install steps (contains several correctness/formatting issues). |
| docs/configure-mongot.md | Adds configuration page skeleton (procedure content is currently empty). |
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| 7. Create the `mongot` configuration file. | ||
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| The tarball includes a sample configuration file named `config.default.yml`. Modify it as needed for your deployment. | ||
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| 5. Create the password file for the `mongot` user. | ||
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| `mongot` reads the password for its database user from a file. Create the file and restrict its permissions. The `-n` option prevents a trailing newline from being written to the file, which would otherwise become part of the password: | ||
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| ```bash | ||
| echo -n "<mongot-password>" > mongot-password.txt | ||
| chmod 400 mongot-password.txt | ||
| ``` | ||
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| Replace `<mongot-password>` with a password of your choice. You use the same password when you create the `mongot` database user in step 9. |
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| ## Procedure | ||
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Percona Server for MongoDB (PSMDB) currently lacks integrated support for advanced search capabilities such as Vector Search and Full-text Search, which are becoming increasingly critical for users analyzing large-scale, semi-structured, or unstructured datasets. MongoDB Community Edition will introduce these features natively, including a new component (mongot - aka Search Node) that wraps Lucene to deliver search indexing and query capabilities. In the current “coupled” search architecture, one mongot runs alongside each mongod or mongos. Each mongod/
mongosand mongot pair is on the same physical box/server and communicates via localhost. mongot replicates the data from its collocated mongod node using change streams and builds Lucene indexes on that replicated data. mongot is guaranteed to be eventually consistent with mongod.Without this support in PSMDB, our users are limited in how they query text data or leverage machine learning embeddings for vector similarity. This leads them to rely on external tools or migrate to Atlas or other vendors that natively support these features.
For more details, see https://perconadev.atlassian.net/browse/PSMDB-1725