DevOps a DBA’s perspective
Guest Blogger: DevOpsGuys This is a guest post from DevOpsGuys. DevOpsGuys are the experts in delivering practical engineering and consultancy solutions to transform and accelerate the way...
View ArticleClik here to view.
创业这些年使用 mongodb 的实践教训
在生产环境中使用 mongodb 始于 2012 年左右，从最初的 master-slave 模式到后来的 master-replication，到评估 mongodb-sharding 并放弃在生产环境中使用，使用 mongodb 作为基础数据库已经服务了上亿用户。在 4 年的 mongodb 生产环境使用当中，踩了很多坑也走了不少弯路，在此记录，与君共享。 No schema 并不代表没有一致性...
View ArticleHBase 基本使用
Hbase Hadoop Database，是一个分布式的、面向列的开源数据库，该技术来源于 Fay Chang 所撰写的Google论文《Bigtable：一个结构化数据的分布式存储系统》。HBase 是 Google Bigtable 的开源实现，就像 Bigtable 利用了Google文件系统（File System）所提供的分布式数据存储一样，HBase在Hadoop之上提供了类似于...
View ArticleAs Couchbase 4.6 goes GA, NoSQL finds its groove
I really enjoy talking to vendors who avoid zealotry for their technology categories, and instead provide candid guidance on where they're best applied. Such vendors also tend to ignore dogma, and...
View ArticleClik here to view.
Testing Linearizability with Jepsen and Evergreen: “Call Me Continuously!”
Intro What do you do with a third-party tool that proves your application lacks a feature? Add that tool to your continuous integration system (after adding the feature, of course)! In our case we have...
View ArticleClik here to view.
MapR, DataStax offer options for container persistence
Containers are great, having to re-invent persistence to use them, not so much. But that is changing. You're not the only one concerned about container persistence: 82 percent of respondents in a...
View ArticleDocument Validation in MongoDB By Example
mongodb developing Document Validation in MongoDB By Example In this article, we'll explore MongoDB document validation by example using an invoice application for a fictitious cookie company. We'll...
View ArticleCouchDB Weekly News, February 16, 2017
Releases PouchDB Server now has an updated Fauxton UI! `npm install -g pouchdb-server` to upgrade. Thanks to Garren Smith for his help! Releases in the CouchDB Universe callipyge-cloudant 0.1.1 Proxy...
View ArticleClik here to view.
AWS Serverless stack - API Gateway, Lambda and DynamoDB
Hi. I've recently written an article about Claudia API Builder and AWS Lambda and it got a lot of views. You can check it here: http://ivanjov.com/building-serverless-api-with-claudia-api-builder/ ....
View ArticleClik here to view.
How To Be a Billion-Dollar Small Business
It's natural to assume major players, from Salesforce toFacebook, will always have the advantage over the little guys. But even those two giants started small and had tobattle larger companies on...
View ArticleHBase Region Locality
因为DataNode和RegionServer通常会部署在相同的机器上，所以会产生Locality这样的概念。 HBase的Locality是通过HDFS的Block复制实现的。在复制Block时，HBase是这样选择副本的位置的： 第一个副本写到本地节点上； 第二个副本写到另一个机架的随机节点上； 第三个副本写到相同机架的一个随机选择的其他节点上；...
View ArticleGraph Analytics on HBase with HGraphDB and Giraph
HGraphDB is a client framework for HBase that provides a TinkerPop Graph API . HGraphDB also provides integration with Apache Giraph , a graph compute engine for analyzing graphs that Facebook has...
View ArticleClik here to view.
NoSQL数据库中“四大天王”简介及分析
【IT168 评论】NoSQL数据库在整个数据库领域的江湖地位已经不言而喻。在大数据时代，虽然RDBMS很优秀，但是面对快速增长的数据规模和日渐复杂的数据模型，RDBMS渐渐力不从心，无法应对很多数据库处理任务，这时NoSQL凭借易扩展、大数据量和高性能以及灵活的数据模型成功的在数据库领域站稳了脚跟。...
View ArticleDiscord 如何存储数十亿消息数据
原文链接: https://blog.discordapp.com/how-discord-stores-billions-of-messages-7fa6ec7ee4c7#.p2vea9li9 Discord 的发展速度已经超出了我们的预期，更多的用户产生更多的聊天信息。7 月份，一天的消息量 已经达到了 4000 万，12 月份的时候就到了 1 亿，在写这篇博客的时候每天的消息量已经超过了...
View ArticleClik here to view.
IBM, Hortonworks tackle big data in Hadoop analytics partnership
IBM and Hortonworks have partnered to offer the use of IBM Storage with Hadoop. The partnership will see the two tech giants offer the Hortonworks Data Platform (HDP) for IBM Elastic Storage Server...
View ArticleClik here to view.
Etsy CEO Dickerson Explains Hive of Hadoop, Machine Learning
By Tiernan Ray Etsy headquarters in Brooklyn’s DUMBO district. Tuesday morning, online marketplace Etsy (ETSY) held a press conference in Boorklyn’s DUMBO neighborhood, wherechief executive Chad...
View ArticleBuilding a Spring Boot RestController to search Redis
I’ve just started taking a look at using Redis . I wondered what it would look like to build a simple REST interface with Spring Boot. Spring Data Redis makes this pretty simple. First up, you need to...
View Articlebaeldung - Coding and Testing Stuff: A Guide to Neo4J with Java
1. Introduction This article is about Neo4j one of the most mature and full-featured graph databases on the markettoday.Graph databases approach the task of data modeling with the view that many things...
View ArticleRedis内存管理和持久化机制
本篇内容参考了多位前辈对Redis的深入分析的Blog和Redis实现原理等书籍，简单描述了Redis的内存管理和持久化机制，列出了其内存结构和编码类型，以及Redis持久化的RDB和AOF两种方式的基本原理 内存管理 Redis是一个基于内存的key-value的数据库，其内存管理是非常重要的；其针对不同操作系统的差异，同时方便自己实现相关的统计函数，封装了不同平台的实现，具体可参阅...
View Article