Skip to content

Add known issue for bbq_hnsw search performance #132009

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Jul 31, 2025
Merged

Add known issue for bbq_hnsw search performance #132009

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
56ad4e7
Add known issue for bbq_hnsw rescoring
thecoop Jul 28, 2025
85d81ed
Merge branch 'main' into directio-known-issue
thecoop Jul 31, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions docs/release-notes/known-issues.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,10 @@ mapped_pages:
# Elasticsearch known issues [elasticsearch-known-issues]
Known issues are significant defects or limitations that may impact your implementation. These issues are actively being worked on and will be addressed in a future release. Review the Elasticsearch known issues to help you make informed decisions, such as upgrading to a new version.

## 9.1.0 [elasticsearch-9.1.0-known-issues]
* An error in the configuration of vector indices with type `bbq_hnsw` may lead to significant search performance degradation on 9.1.0. To mitigate this, set the `-Dvector.rescoring.directio=false` JVM option on all search nodes, then restart the nodes.
This option can be removed in 9.1.1.

## 9.0.3 [elasticsearch-9.0.3-known-issues]
* A bug in the merge scheduler in Elasticsearch 9.0.3 may prevent shards from closing when there isn’t enough disk space to complete a merge. As a result, operations such as closing or relocating an index may hang until sufficient disk space becomes available.
To mitigate this issue, the disk space checker is disabled by default in 9.0.3 by setting `indices.merge.disk.check_interval` to `0` seconds. Manually enabling this setting is not recommended.
Expand Down
Loading