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Sven Hammar

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Top Stories by Sven Hammar

For the past few years, our friends at VMblog.com have run an annual prediction series forecasting the trends most likely to drive adoption of cloud and virtualization technologies in the upcoming year. This is the second year in a row that they’ve invited me to contribute, and I thought long and hard about the assignment. After a deep gaze into my crystal ball, a deliberate shuffle of the tarot cards, and much careful contemplation, I settled on six major predictions, six changes to how solution providers and organizations will approach performance management in 2013. Some of these predictions I’ve already alluded to here on the Apica blog, but I also included a few we haven’t yet discussed. VMblog.com published my post a few weeks ago, and they were kind enough to let me share it with you here as well. So read on for my post, “2013: The year of application optimi... (more)

Twitter’s Performance Metrics During the Political Conventions

While all eyes were on Tampa, Fla. and Charlotte, N.C. these last two weeks for the Republican and Democratic National Conventions, we had our eyes, and monitors, on Twitter to see if and how these events impacted Twitter’s website performance. As is the case with most big news events today, people took to Twitter in a big way for real-time information and broke some records in the process. After the Republican National Convention (RNC) concluded last week, Twitter reported that 4 million tweets were sent out in total about the RNC. Following the conclusion of President Obama’s s... (more)

We broke our own load testing record – yet again!

At the end of 2012, Apica conducted a massive load test for an election campaign organization. It was the largest load test we ever conducted, surpassing the two million virtual user mark we set earlier that year. The load test clocked in at over 200,000 requests per second for an entire hour. To put this in context, roughly 23,000 Google searches occurred every second at the time. At the end of 2013, we blew our own record out of the water. After being contracted to conduct a load test for a well known government, we reached over 620,000 requests per second with over 1 million ... (more)

Lessons Learned from the Amazon Web Services Outage

On Monday, Amazon Web Services — the leading provider of cloud services — suffered an outage, and as a result, a long list of well-known and popular websites went dark. According to Amazon’s Service Health Dashboard, the outage started out as degraded performance of a small number of Elastic Bloc Store (EBS) storage units in the US-EAST-1 Region, then evolved to include problems with the Relational Database Service and Elastic Beanstalk as well. WEBSITE DOWN: AWS outage takes down Reddit and other popular sites The only surprising thing about this AWS outage was that anyone was sur... (more)

Load Testing to Detect Advanced Persistent Threats

I’ve written before about how capacity planning and load testing tools can help companies prepare for a Distributed Denial of Service (DDoS) attack, but we’ve begun to see a new class of attacks emerge, called Advanced Persistent Threats (APT), whose aim is much more sinister than a slow response time or “page not found” error. What is an Advanced Persistent Threat? The intentions behind APT are all about espionage — not just state-sponsored espionage but also extensive and well-organized industrial espionage. APT is not about any particular technology or technique. The actual a... (more)