# NousResearch/hermes-agent · Gateway restart causes duplicate expired session flushes

## Open now

- Nothing open on GitHub.

These issues and PRs address a bug where expired sessions are re-flushed on every gateway restart. Multiple fix approaches are represented, involving persisting flush state to prevent redundant operations.

## TL;DR

- 6 member(s): 0 open issue(s), 2 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #4481. Verify it addresses your case.
- **Recommended:** read PR #4481 (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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.36`: 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

- #2506: _session_expiry_watcher re-flushes expired sessions on every gateway restart
- #3059: Double memory flush on gateway restart when session expires

## Prior & competing PRs

- **#4481: fix(gateway): persist memory flush state to prevent redundant re-flushes on restart**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `cli.py`, `gateway/run.py`, `gateway/session.py`, `hermes_cli/runtime_provider.py`, `run_agent.py`, `tests/gateway/test_async_memory_flush.py`
- **#2510: fix(gateway): prevent re-flushing expired sessions on restart**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#4481`
- **#2527: fix(gateway): remove expired session entries after flush to prevent restart re-flushing**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#2510`, `#4481`
- **#3078: fix(gateway): persist flushed-session set to DB to prevent double flush on restart**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#4481`

## Fix status

- Merged to main in PR #4481 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-04-01`. This confirmation is old and may be out of date (a revert/reopen would not have invalidated it here); re-verify.
- Subsystem: `gateway`