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Workbench/interviews/intv_82fa4ce77616456b8015cdcd0b9222e6

美团 / 后端开发 / 一面

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concurrencyjavamqredisthreadlocal
source_title
slice3-smoke-1774338509
question_count
2
source_kind
interview_experience
updated_at
2026-03-24 07:48:33Z

Interview summary

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Java 基础 + Redis + MQ

Linked questions (2)

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lockredis
Question 1: Redis 分布式锁会遇到哪些问题? Source answer: 要考虑误删、续约、主从切换一致性和超时兜底。
concurrencythreadlocal
Question 2: 为什么 ThreadLocal 在线程池里要手动清理? Source answer: 线程复用会导致脏数据和内存泄漏。

Raw source

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公司: 美团 岗位: 后端开发 轮次: 一面 总结: Java 基础 + Redis + MQ 标签: java, redis, mq Q: Redis 分布式锁会遇到哪些问题? A: 要考虑误删、续约、主从切换一致性和超时兜底。 Q: 为什么 ThreadLocal 在线程池里要手动清理? A: 线程复用会导致脏数据和内存泄漏。 Q: Kafka 为什么适合削峰填谷? A: 因为可以异步解耦并缓冲流量高峰。

Metadata

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company: 美团
role: 后端开发
round_info: 一面

Source document

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Title: slice3-smoke-1774338509
Kind: interview_experience
Updated: 2026-03-24 07:48:33Z