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[FIX] 제미나이 재시도 백오프 간격 조정으로 타임아웃 개선 #98

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Merged
lee-si-yeon merged 3 commits into from
Feb 10, 2026
Merged

[FIX] 제미나이 재시도 백오프 간격 조정으로 타임아웃 개선 #98

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e76537b
fix: 제미나이 재시도 백오프 간격 조정으로 타임아웃 개선
Feb 10, 2026
cba5adb
chore: 주석 정리
Feb 10, 2026
2a893f8
fix: 제미나이 재시도 백오프 계산 보정
Feb 10, 2026
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22 changes: 15 additions & 7 deletions src/main/java/org/umc/valuedi/global/external/genai/client/GeminiClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,13 @@ public class GeminiClient {
private final Client genaiClient;
private final GeminiProperties geminiProperties;

private static final int MAX_ATTEMPTS = 2;
private static final int MAX_ATTEMPTS = 4;

private static final Duration PER_ATTEMPT_TIMEOUT = Duration.ofSeconds(30); // 시도별 제한
private static final Duration OVERALL_DEADLINE = Duration.ofSeconds(70); // 전체 제한(선택)
private static final Duration PER_ATTEMPT_TIMEOUT = Duration.ofSeconds(30); // 시도별 제한
private static final Duration OVERALL_DEADLINE = Duration.ofSeconds(240); // 전체 제한

private static final long BASE_BACKOFF_MILLIS = 200;
private static final long MAX_BACKOFF_MILLIS = 2_000;
private static final long MAX_BACKOFF_MILLIS = 90_000;

private static final ExecutorService executor =
Executors.newFixedThreadPool(4, r -> {
Expand Down Expand Up @@ -152,11 +152,19 @@ private boolean isRetryable(Throwable t) {
}

private void sleepBackoff(int attempt, Throwable cause) {
long backoff = Math.min(MAX_BACKOFF_MILLIS, BASE_BACKOFF_MILLIS * (1L << (attempt - 1)));
long jitter = ThreadLocalRandom.current().nextLong(0, 150);
// attempt=1 실패 후 -> 2초, attempt=2 실패 후 -> 4초, attempt=3 -> 8초 ...
long exp = 1L << attempt; // 1=>2, 2=>4, 3=>8 ...
long backoff = BASE_BACKOFF_MILLIS * exp;

// cap
backoff = Math.min(backoff, MAX_BACKOFF_MILLIS);

// jitter: 0~10%
long jitter = ThreadLocalRandom.current().nextLong(0, Math.max(1, backoff / 10));
long sleepMillis = backoff + jitter;

log.info("Gemini retry: attempt={} backoff={}ms cause={}", attempt, sleepMillis, cause.toString());
log.info("Gemini retry: attempt={} backoff={}ms (base={}ms cap={}ms) cause={}",
attempt, sleepMillis, BASE_BACKOFF_MILLIS, MAX_BACKOFF_MILLIS, cause.toString());

try {
Thread.sleep(sleepMillis);
Expand Down