Scalability - Ability to handle increasing amount of work gracefully - Dimensions: - Load - Handling increasing load by adding resources - Geographic - Maintain performance in case of geographically distributed systems - Functional - Adding new features using minimum effort ...
I I don't understand the advantages of ColumnFamilies over a SuperColumnFamily with just one supercolumn. Why have the former if the latter is functionally equivalent? Key ...
By a cloud database, I mean one with the following properties: provided as part of a hosting package by large web companies like Amazon, Google, Rackspace, Microsoft and even smaller ones like Joyent and Heroku. designed so that they scale up automatically as traff ...
3. 什么是云计算 云计算是既指通过Internet作为服务发布的应用程序,也指提供这些服务的数据中心中的软硬件。这些服务本身一直以来都被称为SaaS,所以我们使用这个术语。而数据中心软硬件就是我们称之为云的东西。 当一个云以即用即付费(pay as you go)的方式提供给公众时,我们称其为公共云(public cloud);销售的服务就 ...