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<!-- Add the related story/sub-task/bug number, like Resolves #123, or remove if NA --> **Related issue:** Resolves #42545 Tested in loadtest. `host_orbit_info` and `host_disks` are seeing the massive skip wins # Checklist for submitter If some of the following don't apply, delete the relevant line. - [x] Changes file added for user-visible changes in `changes/`, `orbit/changes/` or `ee/fleetd-chrome/changes`. See [Changes files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files) for more information. ## 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** * Avoids unnecessary database writes when incoming host data already match stored values, reducing steady-state update volume. * **Tests** * Added tests to validate skip-on-no-change behavior, including cases with small numeric precision differences and idempotency checks. * **Documentation** * Added changelog entry describing the reduced-write behavior. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
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* Reduced MySQL writer load by skipping no-op `UPDATE host_orbit_info` and `UPDATE host_disks` writes when the stored values already match the incoming ingest values from osquery, cutting these writes to near zero at steady state.
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