❓ Почему микросервис виснет?Q: В микросервисе на Spring Boot с REST API начали замечать зависания и таймауты при обращении к стороннему API. Подключение через RestTemplate. Как можно диагностировать и устранить проблему?A: Проблема

Библиотека собеса по Java | вопросы с собеседований

❓ Почему микросервис виснет?

Q: В микросервисе на Spring Boot с REST API начали замечать зависания и таймауты при обращении к стороннему API. Подключение через RestTemplate. Как можно диагностировать и устранить проблему?

A: Проблема, скорее всего, в отсутствии или неправильной настройке таймаутов у RestTemplate. По умолчанию они не выставлены, и поток может висеть бесконечно, дожидаясь ответа от внешнего сервиса.

Что делать:

— Проверить и настроить таймауты (.setConnectTimeout(Duration.ofSeconds(Х)) и .setReadTimeout(Duration.ofSeconds(Х)) )
— Добавить Circuit Breaker (например, через Resilience4j) — чтобы сервис не падал, если внешнее API умирает.
— Логировать время ответа, чтобы видеть деградацию раньше.

🐸

Библиотека собеса по Java

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Create: 2025-04-30
Last Update: 2025-07-10 11:44:52

Библиотека собеса по Java | вопросы с собеседований Telegram | DID YOU KNOW?

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