# NousResearch/hermes-agent · sync_back tar leaks and socket failures

## Open now

- Nothing open on GitHub.

A bug where sync_back() creates multi-GB temporary tar files that are not cleaned up, partly because tar exits with an error when encountering live sockets. Multiple fixes address leak prevention, socket tolerance, and orphan tar reclamation.

## 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 #114787. Verify it addresses your case.
- **Recommended:** read PR #114787 (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: `resolved` · deciding PR(s): `pr-114787`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #114437: \[Bug\]: sync_back() leaks multi-GB /tmp tars and can fill the disk (tar exits 2 on gateway.sock; 6h sweep window)

## Prior & competing PRs

- **#114787: fix(file-sync): sync-back tolerates live sockets, reclaims hard-kill tars by owner PID, cap overridable (#114437, salvage #114440)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `hermes_cli/config_defaults.py`, `tests/tools/test_file_sync_back.py`, `tests/tools/test_sync_back_backends.py`, `tests/tools/test_vercel_sandbox_environment.py`, `tools/environments/daytona.py`, `tools/environments/file_sync.py`, `tools/environments/modal.py`, `tools/environments/ssh.py`, `tools/environments/vercel_sandbox.py`, `website/docs/user-guide/configuration.md`
- **#114438: fix(env): stop sync_back leaking multi-GB tars and failing on live sockets**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `f29f6a018735`, `#114787`, `#114437`, `#114440`
- **#114440: fix(tools): stop socket-ignoring tars from failing sync-back and leaking GBs**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `97a84e4a5674733d94a08a1ac99971b1603a6677`, `cdceca42e107f0e51ab9ff50e1cc881ad76b577e`, `#114438`, `#114437`, `#114440`

## Fix status

- Merged to main in PR #114787 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-18`.