MongoDB tutorial, Java Web Services, Java design patterns, Software Architecture tutorial, Spring, Hibernate, Cassandra, elastic, data structure algorithm
MongoDB(1) Kafka(1) hibernate(1) 随笔分类 algorithm(5) database(3) hibernate(1) java(12) Kafka(1) MongoDB (1) mysql(1) Rabbitmq(1) redis(1) System Design(12) 随笔档案 2018年7月(16) 2018年6月(48) 阅读排行榜 1. Grokking the System Design Interview(26...
In addition to Redis, MongoDB ObjectId is often used as a distributed ID solution. MongoDB ObjectId requires a total of 12 bytes to store: 0~3: Timestamp 3~6: on behalf of the machine ID 7~8: Machine process ID 9~11: Self-value-added The advantages and disadvantages of the MongoD...
3.MyCat和MySQL的区别?4.什么是分库分表?5.如何设计分库分表 (mycat)2、MongoDB1.MongoDB的作用2.MongoDB的特点3、动态代理4、MySql1.优化SQL的步骤(创建索引)2.避免索引失效和SQL优化3.索引的分类3.4.1 按属性3.4.2 按数据存储方式3.5.2 查看索引3.5....
Question Posted In : DataBase | sql questions 1 2 3 4 5 6 7 8 9 10 ... :) Categoriese BigData(533)HDP | CDH | Data Lakes | CouchDB | Hadoop | Cassandra | MongoDB | Hive | Cassandra Data Handling | MapReduce | Riak | NoSQL Database Revolution | Apache NiFi | Cognos | No...
Recently in one of the interview, interviewer asked me “Have you ever hands on Mule, ActiveMQ , Vaadin , MongoDB, CouchDB, Neo4J, GWT ?”, i am speechless, because among all of these, some are the word which i had listen first time in my life, and i was just left out that int...
http://ifeve.com/java-multi-threading-concurrency-interview-questions-with-answers/ volatile 的原理,作用,能代替锁么。 Volatile利用内存栅栏机制来保持变量的一致性。不能代替锁,其只具备数据可见性一致性,不具备原子性。 http://blog.csdn.net/gongzi2311/article/details/20715185 ...
Redis生成,mongodb的objectId,zk生成 http://www.cnblogs.com/haoxinyue/p/5208136.html 设计一个秒杀系统,30 分钟没付款就自动关闭交易。 分流 – 限流–异步–公平性(只能参加一次)–用户体验(第几位,多少分钟,一抢完) 容错处理 Redis 队列 mysql ...
包括spring-boot-starter-webflux,spring-boot-starter-data-mongodb-reactive,spring-boot-starter-test和reactor-test依赖项。 pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0...
JavaEE面试题整理一、Java基础篇二、JVM篇三、Tomcat篇四、MyBatis篇五、Spring篇六、SpringMVC面试题整理七、Redis篇八、Mongodb篇九、MQ篇十、Shiro篇十一、搜索引擎篇十二、Nginx篇十三、SpringBoot篇十四、Dubbo篇 一、Java基础篇1、JAVA中的几种基本数据类型是什么,各自占用多少字节? 浮点类型:float(4字节)、...