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InvalidParameterException on task_id: arn:aws:ecs:us-west-2:619071347432:task/cupix-tesla-ece/48ecc8

Service
cupixvista-api
Occurrences
2
Status
Reported
Confidence
80%
Actionability
44%
Cluster ID
9740e6bb-9a13-43fc-bd12-8491db0132ef
First Seen
2026-07-01 08:53 UTC
Last Seen
2026-07-27 03:07 UTC
Actions

InvalidParameterException on task_id: arn:aws:ecs:us-west-2:619071347432:task/cupix-tesla-ece/48ecc8

What Happened#

2026-07-01 17:53 KST, cupixvista-api (tesla Rails) 서비스에서 Job 50639의 stop_tasks 흐름이 실행되면서 AwsTask#stop!이 ECS stop_task API를 호출했고, ECS가 InvalidParameterException: The referenced task was not found 응답을 반환했다. DB의 aws_tasks 레코드는 여전히 PENDING 상태였으나 실제 ECS task는 이미 제거되어 있었기 때문에 발생했다. 단일 인스턴스(occurrence_count: 1) 이벤트이며 사용자 요청은 정상 처리되었다.

Quick Facts#

Field Value
exception.class Aws::ECS::Errors::InvalidParameterException
exception.message The referenced task was not found
top_frame app/models/aws_task.rb:172-173
env production, us-west-2
service cupixvista-api (tesla repo, Rails)
affected job Job 50639 (skat-master / create_capture)
affected task AwsTask 49687, ECS task 48ecc8fc146c40e6b7f1da84a352577b
ecs cluster cupix-tesla-ece

Affected Teams#

Team / Domain Error Count Impact
cupixvista-api / Capture pipeline 1 Job 50639은 정상적으로 stopped 상태로 전이되었고 후속 콜백(job_stopped_callback)도 완료. 실제 사용자 영향은 없으며 error 로그만 남았다.

Timeline#

  1. 2026-07-01 10:38:28 KST — AwsTask 49687 created (task_id: 48ecc8fc…, job 50639, task-definition cupix-skat-master-production-arm:1)
  2. 2026-07-01 10:38:30 KST — Task fetched from ECS, last_status: PENDING, desired_status: RUNNING
  3. (간격 ~7h 15m) — 이후 24h 로그 창 내에서 이 task_id에 대한 추가 AwsTask#fetch! 이벤트 없음. ECS 측에서 task가 이미 종료·리핑(reap)된 것으로 추정 (stopped-task-retention 기본 1h)
  4. 2026-07-01 17:53:48 KST — Job 50639 상태가 running → stopped로 전이, stop_tasks 흐름이 StopTaskWorker를 통해 AwsTask#stop! 호출
  5. 2026-07-01 17:53:48 KST — ECS가 InvalidParameterException: The referenced task was not found 반환, error 로그 기록 (본 클러스터의 originating 이벤트)
  6. 2026-07-01 17:53:48 KSTJobCallbackWorkerjob_stopped_callback 정상 완료

Scoring#

Confidence 80% · Actionability 44%

Confidence#

Dimension Score Detail
Evidence completeness 5/5 10 code refs, 5 log queries
Code path explicitness 3/3 10 file:line refs
Log evidence 2/3 section, query
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 5/5 trivial
Affected files 1/5 15 file(s)
Single repo 1/3 3 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