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| author | GitLab Bot <gitlab-bot@gitlab.com> | 2023-03-13 21:08:56 +0300 |
|---|---|---|
| committer | GitLab Bot <gitlab-bot@gitlab.com> | 2023-03-13 21:08:56 +0300 |
| commit | 7b7bc31c5ba07eebe62e2f2582f111ce24285cd4 (patch) | |
| tree | 70c795a932a603e49176d30ee5f0835fcfed46c2 /doc/development/advanced_search.md | |
| parent | cb38c5062c623059d311c4e9e37428eacdea95d6 (diff) | |
Add latest changes from gitlab-org/gitlab@master
Diffstat (limited to 'doc/development/advanced_search.md')
| -rw-r--r-- | doc/development/advanced_search.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/development/advanced_search.md b/doc/development/advanced_search.md index 4e61098b17d..4c779088d01 100644 --- a/doc/development/advanced_search.md +++ b/doc/development/advanced_search.md @@ -42,6 +42,16 @@ After initial indexing is complete, create, update, and delete operations for al Search queries are generated by the concerns found in [`ee/app/models/concerns/elastic`](https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/app/models/concerns/elastic). These concerns are also in charge of access control, and have been a historic source of security bugs so please pay close attention to them! +### Custom routing + +[Custom routing](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-routing-field.html#_searching_with_custom_routing) +is used in Elasticsearch for document types that are associated with a project. The routing format is `project_<project_id>`. Routing is set +during indexing and searching operations. Some of the benefits and tradeoffs to using custom routing are: + +- Project scoped searches are much faster. +- Routing is not used if too many shards would be hit for global and group scoped searches. +- Shard size imbalance might occur. + ## Existing Analyzers/Tokenizers/Filters These are all defined in [`ee/lib/elastic/latest/config.rb`](https://gitlab.com/gitlab-org/gitlab/-/blob/master/ee/lib/elastic/latest/config.rb) |