Cairn

Blocked periodic callbacks stalling agent safety timers

NousResearch/hermes-agent · cluster 102574

Data as of

Nothing open on GitHub. Fix merged in #106308. Check it covers your case.

The short answer

0open issues
0open PRs
6items grouped
Known?
Yes. 6 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #106308. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #106308. That is separate from the fix event.
Still open
Nothing open on GitHub.

A bug where one blocked periodic scheduler callback could stall all other callbacks, including lease refresh and liveness timers. Multiple fix attempts address this by dispatching periodic callbacks through a bounded worker pool to isolate blocking work.

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.

  • #106308 fix(agent): one blocked periodic callback no longer stalls lease refresh and liveness timers (#102574; salvage #105716, same mechanism as #102458)

    merged to main

    files: agent/periodic_scheduler.py, agent/turn_facade_lease.py, agent/turn_liveness.py, tests/agent/test_periodic_scheduler.py, tools/delegate_tool_child_run.py

4 PRs closed without merging

From the close comments: superseded by another PR 3 · done elsewhere 1

  • #102615 fix(periodic_scheduler): dispatch periodic callbacks via bounded worker pool (#102574) · superseded by another PR → #102458, #102574
  • #102657 fix(agent): dispatch periodic callbacks through worker pool to prevent stalls · superseded by another PR → #102574, #102458, #102615
  • #104488 fix(agent): dispatch periodic callbacks to a bounded worker pool (#102574) · superseded by another PR → #102615, #102657, #102458, #102574
  • #105716 fix(agent): isolate periodic scheduler callbacks from blocking siblings (#102574) · done elsewhere → 2369606, #106308, #102458
Closed issues · 1
  • Closed#102574[Bug]: Shared periodic scheduler lets one blocked callback stall every safety timer
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.40: 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
#106308
Closed issues
1
Attempts
4 PRs closed without merging
Fix link checked
9 Sep 2026

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