<!-- Add the related story/sub-task/bug number, like Resolves #123, or remove if NA --> **Related issue:** Resolves #46338 Changes load tested (osquery load test). <img width="1532" height="282" alt="image" src="https://github.com/user-attachments/assets/9eb38629-918e-4e05-bc0b-e2ae22e8b148" /> <img width="1414" height="937" alt="image" src="https://github.com/user-attachments/assets/1b90afd3-087c-452e-939f-b495df3e59c8" /> # Checklist for submitter - [x] Changes file added for user-visible changes in `changes/`, `orbit/changes/` or `ee/fleetd-chrome/changes`. ## Testing - [x] Added/updated automated tests - [x] QA'd all new/changed functionality manually <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Performance Improvements** * Extended host cache retention period from 60 seconds to 180 seconds to improve overall cache efficiency and hit rates. * Optimized host cache invalidation strategy to eliminate unnecessary reverse-index lookups, significantly reducing database reader load and Redis CPU consumption. * **Tests** * Added test coverage for host update cache invalidation edge cases to ensure proper behavior. <!-- review_stack_entry_start --> [](https://app.coderabbit.ai/change-stack/fleetdm/fleet/pull/46458?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack) <!-- review_stack_entry_end --> <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Lucas Manuel Rodriguez <lucas@fleetdm.com>