ChildProcessManager::setupEventHandlers | Child process stderr: at Object.assert (/tmp/agent/dis
Service
cupixworks-any-bimrevision-agent
Occurrences
78
Status
Reported
Confidence
85%
Actionability
36%
Cluster ID
8e170dea-0da9-4f90-b271-e4be61eab9f0
First Seen
2026-05-27 09:15 UTC
Last Seen
2026-07-22 09:03 UTC
Datadog
SlackActions
ChildProcessManager::setupEventHandlers | Child process stderr: at Object.assert (/tmp/agent/dis
What Happened#
2026-05-27 09:15~09:17 UTC 사이에 cupixworks-any-bimrevision-agent 서비스의 BIM comparison child process에서 @cupixapps/forge-utils 패키지의 assertion 실패가 4회 발생했다. 두 가지 유형의 assertion failure가 혼합되어 있으며, 하나는 geometry decode 관련(비치명적, 재시도 후 성공), 다른 하나는 derivative 누락 관련(치명적, 작업 실패)이다.
Quick Facts#
| Field | Value |
|---|---|
| exception.class | AssertionError / AssertionError [ForgeAgentError] |
| exception.message | Assertion failed - Invalid OTG header / Must not be a nullable value: Derivative not found for modelId: 11 |
| top_frame | cpassert.js:30 (geometry) / cpassert.js:27 (derivative) |
| runtime | Node.js child process (/tmp/agent/dist/) |
| deploy | @cupixapps/forge-utils@10.98.0, @cupix/forge-agents@10.21.0 |
| env | production, us-west-2 |
Affected Teams#
| Team / Domain | Error Count | Impact |
|---|---|---|
| exyte (BIM Revision) | 4 | bim_id 18046 revision 실패 (V2→V3 비교 불가), bim_id 17157은 재시도 후 성공 |
Timeline#
- 09:15:13Z — bim_id 17157 (facilityKey
5k6vfs) geometry decode 중 "Invalid OTG header" assertion 발생 (stderr로 출력) - 09:15:13Z — 동일 작업에서 "Failed to decode geometry buffer (raw size: 6220, size: 0)" assertion 발생
- 09:15:23Z — bim_id 17157 geometry 재시도 성공 (attempt 2)
- 09:17:30Z — bim_id 17157 성공적으로 완료 (2698 entities)
- 09:17:56Z — bim_id 18046 (facilityKey
5k6vfs) "Derivative not found for modelId: 11" assertion 2회 발생, 작업 실패
Scoring#
Confidence 85% · Actionability 36%
Confidence#
| Dimension | Score | Detail |
|---|---|---|
| Evidence completeness | 5/5 | 24 code refs, 4 log queries |
| Code path explicitness | 3/3 | 24 file:line refs |
| Log evidence | 3/3 | section, query, pattern |
| RCA structure | 3/3 | 3/3 sections |
| Revision history | 0/3 | 0 revision(s) |
| Agent execution | 3/3 | success |
Actionability#
| Dimension | Score | Detail |
|---|---|---|
| Fix complexity | 1/5 | critical |
| Affected files | 1/5 | 21 file(s) |
| Single repo | 1/3 | 3 service(s) |
| Immediate actions | 0/3 | absent |
| Testability | 0/3 | no test info |
| External dependency | 3/3 | no external deps |
| Data migration | 3/3 | no migration |