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Cloud Management Blog



RightAws Release 1.7.0, Including ActiveSDB Alpha

We released a new version of our Ruby library gem for accessing AWS Services, including EC2, S3, SQS, and SDB: RightAws 1.7.0 is now available on RubyForge . This version includes enhancements of the EC2 interface to support elastic IP addresses, selectable kernels, and availability zones. It also contains the first alpha release of ActiveSDB, which is a new ActiveResource-like interface for...Read more

RightScale for Amazon EC2 Elastic IP Address & Availability Zones

The cloud is accelerating past terrestrial hosting! Today, Amazon unveiled some major upgrades to its service: Elastic IP addresses, Availability Zones, and selectable kernels. The first two are particularly important because they not only eliminate one of the remaining deficiencies of the service, but provide better functionality than what is currently available in common hosting services...Read more

Setting Up a Fault-Tolerant Site with Amazon's Availability Zones

Amazon's Availability Zones are a fabulous new feature that allows users to assign instances to locations that are fault-tolerant from one another yet that have high bandwidth between each other. I wish I could have done something like that as easily when I was responsible for operations at Citrix Online and we had five datacenters worldwide. As I'll explain in this post, what Amazon actually...Read more

Amazon's Communication is Improving

One of the most often heard complaints about Amazon Web Services is the lack of communication about service status and issues. The community has been pretty vocal about this and the company is committed to improving. So it was nice to see the following response to a minor incident the other day posted on the forum : Following up with more information about this morning's event. At 1:31am PST, a...Read more

RightAws Ruby Gem Now Supports Amazon SDB

Today we released version 1.5.0 of our RightAws gem at http://rubyforge.org/projects/rightaws/ . This release not only provides an interface to EC2, S3, and SQS but also to SDB. The SDB interface has all the nice features of the other interfaces, such as persistent HTTP connections and error retries. Please give it a spin and let us know if you find a problem. This release also has full support...Read more

What is Cloud Computing?

There are many definitions for cloud computing around, and depending on the time of day I'd probably recite a different one. But what's really defining to me is the availability of quasi endless computers (instances in EC2 terminology). Pricing model, pay as you go, someone else deals with muck - all great stuff. But endless computers, that changes computing. Why? Because launching a new instance...Read more

Top Reasons Amazon EC2 Instances Disappear

The fact that Amazon says up-front that computers fail seems to be the number one concern and criticism of EC2, especially from people who have not used it extensively. I don't actually spend much time thinking about that because in our experience it's not something to worry about. It's essential to take into account when designing a system; whenever we set something up on a machine we...Read more

New Kernels Coming to Amazon EC2

Up to now you could run any Linux distribution on Amazon EC2, but you could only run Amazon's 2.6.16 kernel. Well strictly speaking there are two kernels: a kernel for the 32-bit instances and a kernel for the 64-bit instances. But recently Red Hat announced support for RHEL5 on EC2, and today they made it available publicly. The kernel you get if you launch its paid AMI (...Read more

MySQL Performance on Amazon EC2

Spurred by Morgan Tocker , I ran some sysbench MySQL performance benchmarks on EC2 instances. This is just the first round, more to follow. The Setup On a small instance, I reformatted /mnt with LVM2 and creates a 140GB xfs filesystem. In the my.cnf the important InnoDB settings I chose are: innodb_buffer_pool_size = 1G innodb_additional_mem_pool_size = 24M innodb_log_file_size = 64M...Read more


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