mirror of
https://github.com/NousResearch/hermes-agent.git
synced 2026-06-09 08:21:50 +00:00
A heavy --tui session (browser snapshots, large tool outputs) silently OOM-killed the Node parent within minutes — closing the gateway child's stdin, which the user saw only as a bare "gateway exited" / stdin EOF. CLI was immune. Root cause: each completed tool's verbose trail line embedded up to 16KB of result_text, persisted in transcript Msg.tools[] for the whole session and rendered EXPANDED by default, so an Ink render-node tree was built for every one of up to 800 messages at once. That tree blew past Node's heap at a few hundred MB — far below the 2.5GB memory-monitor exit threshold, so the death was never even attributed. - text.ts: persisted verbose tool-trail blocks now cap to a small preview (VERBOSE_TRAIL_MAX_CHARS=800/12 lines), not the 16KB live-render budget. Retained trail strings drop ~17x (12.2MB -> 0.7MB at 800 msgs); the live streaming tail still uses the larger LIVE_RENDER budget. - tui_gateway/server.py: lower the gateway-side verbose text cap to match (1KB/16 lines) so we stop shipping output the TUI no longer renders. - memoryMonitor.ts: derive critical/high thresholds from the real V8 heap ceiling (~88%/70%) instead of the hardcoded 2.5GB that killed the process at 31% of an 8GB ceiling; add a one-shot onWarn early-warning on fast sub-threshold heap growth so the next such death is diagnosable, not silent. - entry.tsx: wire onWarn to a crash-log breadcrumb + stderr line. Full tool output is unchanged in the agent context and SQLite session — this is display/transport only, no behavior or context change. Fixes #34095. Related #27282. Tests: ui-tui text + new memoryMonitor suites (33 pass), python verbose-cap guard (5 pass); full ui-tui suite shows no new failures vs pristine main. E2E repro confirms the retention drop. |
||
|---|---|---|
| .. | ||
| __tests__ | ||
| app | ||
| components | ||
| config | ||
| content | ||
| domain | ||
| hooks | ||
| lib | ||
| protocol | ||
| types | ||
| app.tsx | ||
| banner.ts | ||
| entry.tsx | ||
| gatewayClient.ts | ||
| gatewayTypes.ts | ||
| theme.ts | ||
| types.ts | ||