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fix: k6 테스트 버그 수정 및 메모리 한도 상향 #128

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fix: k6 테스트 버그 수정 및 메모리 한도 상향 #128

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14 changes: 7 additions & 7 deletions docker-compose.prod.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ services:
deploy:
resources:
limits:
memory: 600M
memory: 1000M

@gemini-code-assist gemini-code-assist Bot Jun 2, 2026

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high

현재 docker-compose.prod.yml에 설정된 모든 서비스의 메모리 제한(Limit) 합계가 약 3.48GB(app 1000M, prometheus 800M, kafka 600M, loki 300M 등)로 크게 증가했습니다.

기존 10라인 주석에 언급된 t3.small 인스턴스는 물리 메모리가 2GB에 불과하므로, 이 설정을 그대로 적용하면 물리 메모리 고갈로 인해 호스트 OS의 OOM Killer가 작동하여 컨테이너가 강제 종료될 위험이 매우 높습니다.

권장 사항:

  1. 운영 환경의 인스턴스 스펙을 t3.medium(4GB RAM) 이상으로 상향 조정하는 것을 검토해 주세요.
  2. 만약 t3.small을 유지해야 한다면, 각 컴포넌트의 메모리 제한을 다시 최적화하고 불필요한 모니터링 컴포넌트의 리소스 할당을 줄여야 합니다.

reservations:
memory: 400M
healthcheck:
Expand Down Expand Up @@ -85,7 +85,7 @@ services:
deploy:
resources:
limits:
memory: 350M
memory: 800M
restart: unless-stopped
networks:
- catchtable-net
Expand All @@ -102,7 +102,7 @@ services:
deploy:
resources:
limits:
memory: 200M
memory: 300M
restart: unless-stopped
networks:
- catchtable-net
Expand All @@ -121,7 +121,7 @@ services:
deploy:
resources:
limits:
memory: 100M
memory: 200M
restart: unless-stopped
networks:
- catchtable-net
Expand All @@ -144,7 +144,7 @@ services:
deploy:
resources:
limits:
memory: 200M
memory: 300M
restart: unless-stopped
networks:
- catchtable-net
Expand All @@ -171,7 +171,7 @@ services:
deploy:
resources:
limits:
memory: 100M
memory: 200M
restart: unless-stopped
networks:
- catchtable-net
Expand Down Expand Up @@ -216,7 +216,7 @@ services:
deploy:
resources:
limits:
memory: 400M
memory: 600M

restart: unless-stopped
networks:
Expand Down
3 changes: 2 additions & 1 deletion k6/05-store-list.js
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ export const options = {
};

const CATEGORIES = ['KOREAN', 'JAPANESE', 'CHINESE', 'WESTERN', 'CAFE'];
const DISTRICTS = ['강남구', '마포구', '종로구', '용산구', '성동구'];
const DISTRICTS = ['GANGNAM', 'MAPO', 'JONGNO', 'YONGSAN', 'SEONGDONG'];

export default function () {
const isSpike = exec.scenario.name === 'event_spike';
Expand All @@ -87,6 +87,7 @@ export default function () {
'목록 조회 200': (r) => r.status === 200,
'응답 body 존재': (r) => r.body && r.body.length > 0,
});
if (!ok) console.log(`[ERROR] status=${res.status} url=${url} body=${res.body?.substring(0, 200)}`);

@gemini-code-assist gemini-code-assist Bot Jun 2, 2026

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medium

부하 테스트(k6) 실행 중 에러가 발생할 때마다 console.log를 통해 에러 로그를 출력하도록 설정되어 있습니다.

고부하(High Load) 상황이나 일시적인 장애로 인해 에러율이 높아질 경우, 매 요청마다 발생하는 콘솔 I/O가 k6 실행 엔진의 병목 지점이 되어 CPU 사용량을 급증시키고 실제 응답 시간(Latency) 측정 결과를 왜곡할 수 있습니다.

개선 제안:
에러 로그 출력을 샘플링하여 일부 에러만 기록하거나, 디버깅 시에만 활성화할 수 있도록 환경 변수 등으로 제어하는 것을 권장합니다.

    if (!ok && Math.random() < 0.1) console.log(\`[ERROR] (Sampled 10%) status=\${res.status} url=\${url} body=\${res.body?.substring(0, 200)}\`);

errorRate.add(!ok);
});

Expand Down
4 changes: 2 additions & 2 deletions k6/06-store-nearby.js
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Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,7 @@ export default function () {
group(`근처 매장 조회 (nearby) - ${loc.name}`, () => {
const res = http.get(
`${BASE_URL}/api/v1/stores/nearby?latitude=${lat}&longitude=${lng}&page=0&size=10`,
{ headers: HEADERS_JSON, timeout: '15s' },
{ headers: HEADERS_JSON, timeout: '15s', tags: { name: 'GET_nearby' } },
);
nearbyDuration.add(res.timings.duration);
record(res.timings.duration);
Expand All @@ -104,7 +104,7 @@ export default function () {
`?minLat=${loc.minLat}&maxLat=${loc.maxLat}` +
`&minLng=${loc.minLng}&maxLng=${loc.maxLng}` +
`&centerLat=${lat}&centerLng=${lng}&limit=50`;
const res = http.get(url, { headers: HEADERS_JSON, timeout: '15s' });
const res = http.get(url, { headers: HEADERS_JSON, timeout: '15s', tags: { name: 'GET_in_bounds' } });
inBoundsDuration.add(res.timings.duration);
record(res.timings.duration);
if (res.timings.duration >= 15000 || res.status === 0) timeoutCount.add(1);
Expand Down
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