QMAws::startTask | ECS failures - job_id: 89685, task_definition: cupix-pano-postprocessor-productio
Service
cupixworks-any-compute-agent
Occurrences
15
Status
Reported
Confidence
85%
Actionability
28%
Cluster ID
e4d831ed-180a-4b1e-8206-a172434dfbb7
First Seen
2026-04-14 15:17 UTC
Last Seen
2026-06-18 08:22 UTC
Datadog
SlackActions
QMAws::startTask | ECS failures - job_id: 89685, task_definition: cupix-pano-postprocessor-productio
RCA Summary#
listContainerInstances API가 status: 'ACTIVE' 필터로 container instance 목록을 조회한 시점과, 실제 startTask API를 호출하는 시점 사이에 해당 instance가 DRAINING 상태로 전환되는 race condition이 발생했습니다. describeContainerInstances에서도 status == 'ACTIVE'로 확인했지만, 이 검증 이후 ECS가 ASG scale-in 또는 infrastructure 이벤트로 인해 instance를 DRAINING으로 전환했습니다. 이 에러 자체는 SQS 재전송을 통한 retry로 ~5분 후 성공적으로 복구되었으나, 동일한 패턴이 지난 7일간 34건 발생하여 processing 지연을 유발하고 있습니다.
Scoring#
Confidence 85% · Actionability 28%
Confidence#
| Dimension | Score | Detail |
|---|---|---|
| Evidence completeness | 5/5 | 9 code refs, 5 log queries |
| Code path explicitness | 3/3 | 9 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 | 13 file(s) |
| Single repo | 1/3 | 2 service(s) |
| Immediate actions | 0/3 | absent |
| Testability | 0/3 | no test info |
| External dependency | 1/3 | external deps found |
| Data migration | 3/3 | no migration |