Synchronous data replication over long distances has the sort of
seductive appeal that often characterizes bad ideas. Why
wouldn't you want every local credit card transaction
simultaneously stored on the other side of the planet far away
from earthquake, storms and human foolishness? The answer
is simple: conventional SQL applications interact poorly with
synchronous replication over wide area networks (WANs).
I spent a couple of years down the synchronous replication rabbit
hole in an earlier Continuent product. It was one of those
experiences that make you a sadder but wiser person. This
article digs into some of the problems with synchronous
replication and shows why another approach, asynchronous
multi-master replication, is currently a better way to manage
databases connected by long-haul networks.
Synchronous Replication between …
One of the more notable success stories of the open source world is in the field of databases. A company with a strong commitment to open source has seen tremendous growth and success in the enterprise while contributing to a hugely respected open source code base. Who is that? Maybe your first thought was MySQL, now owned by Oracle. But unlike MySQL, this company is actually taking business away from Oracle so effectively that it's seen an 80 percent revenue growth in the last year.
Read the original article at Why I Wrote the Book – Oracle and Open Source
Back in the late 90′s New York City was deep in the dot-com boom. Silicon Alley was being born, and a thousand internet startups were sprouting. Everyone was hiring, it was an exciting time to work in technology!
Trend Spotting Circa 2000
As an independent consultant, I had the opportunity to work at quite a few startups. The technology stack was identical at almost all of them. Sun Microsystems hardware, Apache webservers, and Oracle on the backend. The database was always the sticking point, and developers struggled to get their queries right.
It was an interesting role to hold. Most career DBAs worked …
[Read more]In case you may have overlooked yesterday’s post from Ulf Sandberg, I thought I’d go ahead and reiterate the main points, as it is big news, at least for those interested in SkySQL.
SkySQL has been like a rocket ship with it’s growth since we started, and now we’re making some even bigger changes to help accelerate that effort further.
As Ulf announced, we’ve named a new CEO, Patrik Sallner, to take over after the initial bootstrap period.
Patrik, a former executive at F-Secure, will officially become CEO on July 1st. “Patrik comes to SkySQL with demonstrated experience in building international software and services businesses, including delivering cloud storage solutions to the world’s largest telecommunications operators. The addition of Patrik to SkySQL’s Leadership Team is a tremendous boon to …
[Read more]Topics for this podcast:
*OpenStack, Amazon, Eucalyptus and Citrix engage in open cloud
warfare
*Microsoft spins off new company for openness
*Updates on automation players Puppet Labs and Opscode with
Chef
*Percona turns attention to MySQL high availability
*Open APIs as the fifth pillar of modern IT openness
iTunes or direct download (28:42, 4.9MB)
Read the original article at Autoscaling MySQL on Amazon EC2
Autoscaling your webserver tier is typically straightforward.
Image your apache server with source code or without, then sync
down files from S3 upon spinup. Roll that image into the
autoscale configuration and you’re all set.
With the database tier though, things can be a bit tricky. The
typical configuration we see is to have a single master database
where your application writes. But scaling out or horizontally on
Amazon EC2 should be as easy as adding more slaves, right? Why
not automate that process?
Below we’ve set out to answer some of the questions you’re likely to face when setting up slaves against your master. We’ve included …
[Read more]A week ago I again had the pleasure to give a guest lecture at Tampere University of Technology. I've visited them the first time when I worked as MySQL pre-sales in Sun.
To be trendy, I of course had to talk about the cloud. It turns out every section has the subtitle "...and why it is more difficult for databases". I also rightfully claim to have invented the NoSQL key-value development model in 2005.
The new dashboard from the CloudStack 3.0 beta.
Over the last year I have been working on the CloudStack Open Source Cloud Computing project. This month we are getting ready to launch CloudStack 3.0 which really raises the bar for cloud computing platforms. So what is CloudStack ? short It is an infrastructure-as-a-service(IaaS) platform that orchestrates virtualized servers into an elastic compute environment. The project was originally developed by Cloud.com and is now sponsored by Citrix since they acquired Cloud.com in July of 2011.
CloudStack provides multiple methods for interacting with the …
[Read more]Read the original article at A History lesson for Cloud Detractors
We've all seen cloud computing discussed ad nauseam on blogs, on Twitter, Quora, Stack Exchange, your mom’s Facebook page... you get the idea. The tech bloggers and performance experts often pipe in with their graphs and statistics showing clearly that dollar-for-dollar, cloud hosted virtual servers can’t compete with physical servers in performance, so why is everyone pushing them? It's just foolhardy, they say.
On the other end, management and their bean counters would simply roll their eyes saying this is why the tech guys aren't running the business.
…[Read more]As the saying goes, we at Severalnines have been walking on several clouds this year, 9 to be precise!
Today, we are proud to say that we are on walking on Cloud 9!
And in the spirit of celebration, we would like to announce our:
Top 9 Clouds of the Year 2011 for Severalnines
Cloud 1 – releasing ClusterControl™ - our first commercial product in April!
ClusterControl™ is our flagship product. It enables developers and database administrators to Deploy, Manage, Monitor and Scale their clustered database platforms, free …
[Read more]