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摘要： CREATED 2021-04-19 10:25PM Functional Requrements: upload, view, share, like/dislike, comment, search, change resolution... Non-Functional Requrements 阅读全文

摘要： sounce: https://www.1point3acres.com/bbs/forum.php?mod=viewthread&tid=745881 题目两年不变。具体的题目描述可以看之前的帖子。但考很多multi-threading和distributed system的基础知识以及不断深挖。 阅读全文

摘要： CREATED: 2021-02-28 15:00 production 生产环境 devops 运维开发 https://www.bilibili.com/video/BV1AZ4y1379A?p=2&spm_id_from=pageDriver CPU从内存里面读取指令和数据 工作线程数是不是设 阅读全文

摘要： First created: 2021-02-12 21:00 https://medium.com/i0exception/rendezvous-hashing-8c00e2fb58b0 Consistent Hashing In consistent hashing, both the keys 阅读全文

摘要： First Created: 2021-01-23 23:10 A read-heavy system (compared to write) Main Functions 1. Users are able to post tweet(text, image, video) 2. Users ar 阅读全文

摘要： First Created: 2021/01/23 13:37 Uber https://eng.uber.com/real-time-push-platform/ Cassandra is a durable and cross region replicated storage. ZooKeep 阅读全文

摘要： First created 2021年01月18日21:50 A system with Write heavy & Read heavy, Transisent data ttl can be short Requirements: Drivers: tell the service the re 阅读全文

摘要： First created: 2020-01-19 22:30 DynamoDB supports two types of primary keys: Partition key: A simple primary key, composed of one attribute known as t 阅读全文

摘要： First created 2021年01月17日 A system with Read heavy/Write little placeId 8 bytes name 256 bytes latitude 4 bytes longtitude 4 bytes category 1 byte des 阅读全文

摘要： Garbage Collector of JAVA NOTES Reference video https://www.bilibili.com/video/BV11Z4y1G7wg?p=11 malloc free (C) new delete (C++) new （Java) 自动内存回收 编程 阅读全文