I am very excited to announce that your Engine Yard Cloud account can provision new environments in an Australia datacenter. This is in part thanks to our infrastructure provider Amazon, and part due to the quick work by our Engine Yard engineers to add and test the new region.
We already had regions in Singapore, Japan and West Coast USA so why is a region in Australia/ New Zealand so exciting? It solves the pesky speed of light problem with respect to latency, in a manner of speaking. Why is latency an issue?
3 nodes in one datacenter. Writes were only done on a single node. The cluster contained the tuning: wsrep_provider_options = "gcs.fc_limit = 256; gcs.fc_factor = 0.99; gcs.fc_master_slave = yes"
based on Codership's recommended tuning for single-node writing. I was running wsrep_slave_threads=16 and all other required wsrep settings.
Also note that I disabled log-bin and innodb_support_xa on these nodes.
XtraDB Cluster 2-colo
Just like PXC 1-colo, except …
If you are interested in future foward OS designs then you might find Akaros worth a look. It's an operating system designed for many-core architectures and large-scale systems, with the goals of:
Providing better support for parallel and high-performance applications
Scaling the operating system to a large number of cores
A more indepth explanation of the motiviation behind Akaros can be found in Improving Per-Node Efﬁciency in the Datacenter with NewOS Abstractions …
Among all the different technologies in our stack, we also use MySQL. While we still run MySQL (or Percona-Server) ourselves, we selected a managed solution to power parts of our production infrastructure: a Multi-AZ setup with Amazon's RDS.
Judging from my experience with our own setups where EBS is in the mix, I have to say that Amazon does an …
… Cade Metz interviews Google's guru of the datacenter, Luiz André Barroso: delivering good Internet service requires designing the software and hardware of entire datacenter to work together as one computer; split application pieces across an array of computers; modesty is key, select modest machines with modest processors and spread applications as thin as possible; wimpy cores won't process work fast enough to be useful, that's too thin. To read much more the Internet…
1. DATACENTER MIGRATION
How the conversion affects your slice will depend on its datacenter.
You can see your slice's datacenter by going into the SliceManager , clicking on the slice for more details, and then checking the " Datacenter" entry at the end of the detail list.
If the datacenter does not begin with "" your slice will not be migrated anywhere and the conversion will involve no downtime. Slices in and are already in a Rackspace datacenter…
November 10, 2010 is when they turned off the last frontend server not using AWS. All traffic for amazon.com is now served from AWS.
They've had billions of orders over the lifetime of amazon.com.
They use Oracle.
Be sure to consider compliance issues.
When moving to the cloud, start with simple applications (or …
…running all of the above on a single machine, or across a large cluster of servers within your own datacenter.
Distributed Systems with Ruby? Yes!
Building a distributed system with as many moving components as CloudFoundry is no small feat, and it is really interesting to see that the team behind it chose Ruby as the platform of choice. If you look under the hood, you will find Rails, Sinatra, Rack, and a lot of EventMachine code. If you ever wondered if Ruby is a viable …
When I say partitioning, I mean spreading out the various document types by database. So even though the great advantage of a document oriented database is to be able to have a lot of different data right next to each other, you should avoid that.
Because when your data grows, it's …
…stateare Transforming MySQL Server Performance and the Datacenter Architectures
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MySQL and with Cacti