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	https://github.com/hugohoo/advanced-java#互联网-java-工程师进阶知识完全扫盲
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	https://github.com/hugohoo/advanced-java#高并发架构
消息队列	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/mq-interview.md
	https://github.com/hugohoo/advanced-java#消息队列
为什么使用消息队列？消息队列有什么优点和缺点？Kafka、ActiveMQ、RabbitMQ、RocketMQ 都有什么优点和缺点？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/why-mq.md
如何保证消息队列的高可用？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/how-to-ensure-high-availability-of-message-queues.md
如何保证消息不被重复消费？（如何保证消息消费时的幂等性）	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/how-to-ensure-that-messages-are-not-repeatedly-consumed.md
如何保证消息的可靠性传输？（如何处理消息丢失的问题）	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/how-to-ensure-the-reliable-transmission-of-messages.md
如何保证消息的顺序性？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/how-to-ensure-the-order-of-messages.md
如何解决消息队列的延时以及过期失效问题？消息队列满了以后该怎么处理？有几百万消息持续积压几小时，说说怎么解决？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/mq-time-delay-and-expired-failure.md
如果让你写一个消息队列，该如何进行架构设计啊？说一下你的思路。	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/mq-design.md
搜索引擎	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/es-introduction.md
	https://github.com/hugohoo/advanced-java#搜索引擎
es 的分布式架构原理能说一下么（es 是如何实现分布式的啊）？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/es-architecture.md
es 写入数据的工作原理是什么啊？es 查询数据的工作原理是什么啊？底层的 lucene 介绍一下呗？倒排索引了解吗？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/es-write-query-search.md
es 在数据量很大的情况下（数十亿级别）如何提高查询效率啊？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/es-optimizing-query-performance.md
es 生产集群的部署架构是什么？每个索引的数据量大概有多少？每个索引大概有多少个分片？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/es-production-cluster.md
	https://github.com/hugohoo/advanced-java#缓存
在项目中缓存是如何使用的？缓存如果使用不当会造成什么后果？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/why-cache.md
Redis 和 Memcached 有什么区别？Redis 的线程模型是什么？为什么单线程的 Redis 比多线程的 Memcached 效率要高得多？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-single-thread-model.md
Redis 都有哪些数据类型？分别在哪些场景下使用比较合适？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-data-types.md
Redis 的过期策略都有哪些？手写一下 LRU 代码实现？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-expiration-policies-and-lru.md
如何保证 Redis 高并发、高可用？Redis 的主从复制原理能介绍一下么？Redis 的哨兵原理能介绍一下么？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/how-to-ensure-high-concurrency-and-high-availability-of-redis.md
Redis 的持久化有哪几种方式？不同的持久化机制都有什么优缺点？持久化机制具体底层是如何实现的？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-persistence.md
Redis 集群模式的工作原理能说一下么？在集群模式下，Redis 的 key 是如何寻址的？分布式寻址都有哪些算法？了解一致性 hash 算法吗？如何动态增加和删除一个节点？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-cluster.md
了解什么是 Redis 的雪崩和穿透？Redis 崩溃之后会怎么样？系统该如何应对这种情况？如何处理 Redis 的穿透？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-caching-avalanche-and-caching-penetration.md
如何保证缓存与数据库的双写一致性？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-consistence.md
Redis 的并发竞争问题是什么？如何解决这个问题？了解 Redis 事务的 CAS 方案吗？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-cas.md
生产环境中的 Redis 是怎么部署的？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/redis-production-environment.md
	https://github.com/hugohoo/advanced-java#分库分表
为什么要分库分表（设计高并发系统的时候，数据库层面该如何设计）？用过哪些分库分表中间件？不同的分库分表中间件都有什么优点和缺点？你们具体是如何对数据库如何进行垂直拆分或水平拆分的？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/database-shard.md
现在有一个未分库分表的系统，未来要分库分表，如何设计才可以让系统从未分库分表动态切换到分库分表上？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/database-shard-method.md
如何设计可以动态扩容缩容的分库分表方案？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/database-shard-dynamic-expand.md
分库分表之后，id 主键如何处理？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/database-shard-global-id-generate.md
	https://github.com/hugohoo/advanced-java#读写分离
如何实现 MySQL 的读写分离？MySQL 主从复制原理是啥？如何解决 MySQL 主从同步的延时问题？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/mysql-read-write-separation.md
	https://github.com/hugohoo/advanced-java#高并发系统
如何设计一个高并发系统？	https://github.com/hugohoo/advanced-java/blob/master/docs/high-concurrency/high-concurrency-design.md
	https://github.com/hugohoo/advanced-java#分布式系统
面试连环炮	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-system-interview.md
	https://github.com/hugohoo/advanced-java#面试连环炮
	https://github.com/hugohoo/advanced-java#系统拆分
为什么要进行系统拆分？如何进行系统拆分？拆分后不用 Dubbo 可以吗？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/why-dubbo.md
	https://github.com/hugohoo/advanced-java#分布式服务框架
说一下 Dubbo 的工作原理？注册中心挂了可以继续通信吗？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-operating-principle.md
Dubbo 支持哪些序列化协议？说一下 Hessian 的数据结构？PB 知道吗？为什么 PB 的效率是最高的？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-serialization-protocol.md
Dubbo 负载均衡策略和集群容错策略都有哪些？动态代理策略呢？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-load-balancing.md
Dubbo 的 spi 思想是什么？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-spi.md
如何基于 Dubbo 进行服务治理、服务降级、失败重试以及超时重试？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-service-management.md
分布式服务接口的幂等性如何设计（比如不能重复扣款）？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-system-idempotency.md
分布式服务接口请求的顺序性如何保证？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-system-request-sequence.md
如何自己设计一个类似 Dubbo 的 rpc 框架？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/dubbo-rpc-design.md
	https://github.com/hugohoo/advanced-java#分布式锁
Zookeeper 都有哪些应用场景？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/zookeeper-application-scenarios.md
使用 Redis 如何设计分布式锁？使用 Zookeeper 来设计分布式锁可以吗？以上两种分布式锁的实现方式哪种效率比较高？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-lock-redis-vs-zookeeper.md
	https://github.com/hugohoo/advanced-java#分布式事务
分布式事务了解吗？你们如何解决分布式事务问题的？TCC 如果出现网络连不通怎么办？XA 的一致性如何保证？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-transaction.md
	https://github.com/hugohoo/advanced-java#分布式会话
集群部署时的分布式 Session 如何实现？	https://github.com/hugohoo/advanced-java/blob/master/docs/distributed-system/distributed-session.md
	https://github.com/hugohoo/advanced-java#高可用架构
Hystrix 介绍	https://github.com/hugohoo/advanced-java/blob/master/docs/high-availability/hystrix-introduction.md
电商网站详情页系统架构	https://github.com/hugohoo/advanced-java/blob/master/docs/high-availability/e-commerce-website-detail-page-architecture.md
Hystrix 线程池技术实现资源隔离	https://github.com/hugohoo/advanced-java/blob/master/docs/high-availability/hystrix-thread-pool-isolation.md
	https://github.com/hugohoo/advanced-java#高可用系统
	https://github.com/hugohoo/advanced-java#限流
	https://github.com/hugohoo/advanced-java#熔断
	https://github.com/hugohoo/advanced-java#降级
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