文件名称：Cloud Computing Application Structure
文件大小：3.68MB
文件格式：PDF
更新时间：2014-07-04 21:02:06
Cloud Computing
Our next challenge was Amazon’s lack of persistent storage. As with the issue of no static IP addresses, this concern no longer exists. But before Amazon introduced its Elastic Block Storage services, you lost all your data if your EC2 instance went down. If Valtira were a big company with a lot of cash, we would have considered this a deal-breaker and looked elsewhere. We almost did stop there. After all, the Valtira platform is a database-driven application that cannot afford any data loss. We created a solution that essentially kept our MySQL slave synced with Amazon S3 (which was good enough for this particular use of the Valtira platform) and realized this solution had the virtue of providing automated disaster recovery. This experimentation continued. We would run into items we felt were potential deal-breakers only to find that we could either develop a workaround or that they actually encouraged us to do things a better way. Eventually, we found that we could make it all work in the Amazon cloud. We also ended up spinning off the tools we built during this process into a separate company, enStratus. Today, I spend most of my time moving other companies into the cloud on top of the enStratus software. My customers tend to be more concerned with many of the security and privacy aspects of the cloud than your average early-adopter. The purpose of this book is to