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sharp tile processing OOM on ultra-large aerial images — memory exhaustion

Service
aerial-map-service
Occurrences
2
Status
Reported
Confidence
85%
Actionability
28%
Cluster ID
4caa1dba-be91-46e2-9536-f817d7d6265e
First Seen
2026-05-08 19:13 UTC
Last Seen
2026-05-08 19:13 UTC
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sharp tile processing OOM on ultra-large aerial images — memory exhaustion

What Happened#

2026-05-08 19:13:47 UTC에 aerial-map-service의 postprocess Fargate 태스크가 aerial map ID 408 처리 중 실패했다. 151,923 x 178,786 픽셀(약 270억 픽셀)의 초대형 orthomosaic/DSM 이미지를 타일링하는 과정에서 메모리 부족(OOM) 또는 sharp 라이브러리 내부 오류로 프로세스가 exit code 1로 종료되었다.

Quick Facts#

Field Value
exception.message [CupixAerialMap] postprocess fail undefined
top_frame src/postprocess/index.ts:179
runtime Node.js (ECS Fargate, 8192 MB memory)
env production, us-west-2

Timeline#

  1. 2026-05-08T19:13:03Z — Postprocess 시작 (workspace /workspace/1778263982718, aerial map 408)
  2. 2026-05-08T19:29:01Z — Mesh CPC 변환 성공
  3. 2026-05-08T19:29:55Z — Orthomosaic geotiff 정보 읽기 완료 (151923 x 178786)
  4. 2026-05-08T19:42:28Z — DSM geotiff 정보 읽기 완료 (151923 x 178786)
  5. 2026-05-08T19:13:47Z — Postprocess 실패 (exit code 1, error.message = undefined)
  6. 2026-05-08T19:19:39Z — Step Functions에서 States.TaskFailed 감지, ECS 태스크 중지 확인

Scoring#

Confidence 85% · Actionability 28%

Confidence#

Dimension Score Detail
Evidence completeness 5/5 8 code refs, 2 log queries
Code path explicitness 3/3 8 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 10 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