# NousResearch/hermes-agent · APFS SQLite WAL incompatibility fix on macOS

## Open now

- Nothing open on GitHub.

These members address a conflict between APFS copy-on-write behavior and SQLite's WAL journal mode that causes disk I/O errors on macOS, with a proposed fix to detect APFS and fall back to DELETE journal mode.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #74485. Verify it addresses your case.
- **Recommended:** read PR #74485 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #71498: fix: APFS CoW + SQLite WAL incompatibility — disk I/O errors on macOS

## Prior & competing PRs

- **#74485: fix(state): configurable journal_mode + WAL-refusal detection cluster (salvages #68912, #57918, #46865, #55322)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `cli-config.yaml.example`, `contributors/emails/[redacted:email]`, `hermes_cli/config_defaults.py`, `hermes_cli/kanban_db.py`, `hermes_state.py`, `tests/hermes_cli/test_kanban_db.py`, `tests/test_hermes_state.py`, `tests/test_hermes_state_wal_fallback.py`, `tests/test_journal_mode_config.py`
- **#71734: fix(state): detect APFS and fall back to DELETE journal mode (#71498)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#71766`
- **#71766: fix(state): detect APFS and fall back to DELETE journal mode (#71498)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `5c49cd0ed0`, `#74485`, `#71498`

## Fix status

- Merged to main in PR #74485 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-30`.
- Subsystem: `agent`