Rackspace Hosting, the service provider that helped launch the open source OpenStack cloud controller along with NASA's Ames Research Center two years ago, has finally become its own OpenStack Fanatic.
Rackspace did not flip the switch all at once when it began moving from its own compute cloud controller, but rather eased into it. This is important for the 170,000 customers that Rackspace has for its Cloud Servers and Cloud Files services. Of course, new customers will be deployed on new physical servers running OpenStack by default.
Customers using the older versions of Cloud Servers and Cloud Files will have to work with Rackspace if they want to fire up more instances under the old cloud – because it won't happen by default.
In addition to rolling out OpenStack in production, Rackspace has also rejigged its pricing and packaging on Cloud Servers. The Cloud Block Storage (block storage based on the Lunr project) and Cloud Networks (based on Project Quantum) services that were in beta in April are still not in production.
Content changes or updates to pages or posts do not involve the CDN so no special actions are required.
Media files uploaded through WordPress admin will be automatically uploaded to the CDN and can be immediately used in post or pages with no additional action. You made the modification by downloading the file, editing on your workstation and then uploading via SFTP back to the server. Reliable Penguin provides systems administration, website and server migrations, web hosting and software development. Rackspace has now gone live with the Nova compute cloud controller and other elements of OpenStack behind its production Cloud Servers infrastructure cloud.


The Mosso and Jungle Disk code is at the heart of the Cloud Files service, which has been running for two-and-a-half years now and which was contributed by Rackspace to the OpenStack project as the basis for the Switch object storage controller. Slicehost built its own compute cloud controller and wrapped it around the open source Xen hypervisor. This is an extra goodie that existing customers automatically get and it will be free to customers buying either compute or storage services from Rackspace. And by the way, Rackspace has always been a big buyer of Opteron-based machines, and continues to do that with the underpinnings of the Cloud Services, both old and new, according to Engates. There may not be a forced march to OpenStack, but Rackspace says it doesn't want to make matters worse, either, by allowing customers to move backwards. First, the old entry server configuration – which had only 256MB of virtual memory and 10GB of disk and which cost 1.5 cents per hour – has joined the choir eternal. As with other providers, it costs more money to fire up a Windows server image than it does for a Linux server image.
In this case, the MySQL database service is back-ended with SAN storage to boost performance.
In this case W3TC has no way of knowing that you’ve made a change to the file so it does not know that the file needs to be uploaded to the CDN. I may take up to about a half hour for all access point to receive and honor the purge request but this is still much faster then the 24 hour TTL. I may take up to about a half hour for all access point to receive and honor the purge request. If you want to change a file and have it propagate instantly then change the name of the file so it is seen as a new file by the CDN.


If you have a big setup of updates planned, then it might be a good idea to lower the TTL a few days in advance so that you minimize propagation delay. The Essex code was released in mid-April, and since that time, according to Rackspace's CTO John Engates, Rackspace has been running about two weeks behind the trunk in the OpenStack project with live code. Rackspace uses a mix of Opteron machines from Dell and Hewlett-Packard and even builds its own sometimes to save a few bucks. Engates says that it didn't run Windows and didn't really have enough oomph to run Linux very well, either.
In early benchmarks last April, Rackspace was saying Cloud Databases offered somewhere between two to three times the performance of other database services out there on the cloud – including Amazon's MySQL-derived Relational Data Service (RDS). And lest you get the wrong idea, Rackspace buys plenty of Intel-based servers, too, particularly for private cloud customers who want to have a VMware hypervisor underneath their server images or dedicated hosting customers who get to decide what they want. The new low point is a 512MB virtual server with 20GB of disk, which has had a price cut from 3 cents per hour down to 2.2 cents per hour (that's a 27 per cent price cut). So after uploading a change, it may take up to 24 hours before the change if visible on on access points. This can be a problem for our CSS change as users on different access point might get different versions of the file.



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