NousResearch/hermes-agent

WAL split-brain and sidecar corruption in state.db

Cluster 104596. Data as of 2026-10-25 11:21 UTC

Nothing open on GitHub. Fix merged in #110544 on 14 Sep 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #110544. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #110544, then check it covers your case.

Read #110544 Pick up a Lab task

These items address WAL split-brain conditions in state.db, where journal-mode probes, sibling connection teardown, or stray lock cancellations corrupt or unlink WAL/SHM sidecar files. Coverage spans single-process scenarios, hosted-room TUI gateway cases, and cross-runtime survivability.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#110544 state.db WAL survives sibling closes and stray lock cancellation on every runtime (Desktop chat dies after update; salvage #109758)

merged to main

files: hermes_state.py, hermes_state_dbfile.py, hermes_state_lockguard.py, tests/hermes_state/test_deleted_wal_generation_guard.py, tests/hermes_state/test_wal_lock_guard.py

1 PR closed without merging

From the close comments: superseded by another PR 1

#104632 fix(tui-gateway): prevent hosted-room WAL sidecar split-brain · superseded by another PR → 3e43cee, #110544

Closed issues · 1

Closed#104596state.db WAL split-brain inside a SINGLE process: apply_wal_with_fallback runs the set-pragma when the journal-mode probe fails (unlinks sibling connections -wal/-shm)

How this cluster was grouped

Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
Pairwise link density 0.67: the share of item 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.

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At a glance

Merged PRs: #110544
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 14 Sep 2026

For your agent

The same facts, typed.

cluster/104596.json
cluster/104596.md