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The Impact of Web Caching By Alva Yashaswi Try to remember something that happened on your last vacation. How long did it take you to recall? Now, try to remember it again. You were probably able to recall it faster the second time — but, why? This is because as soon as you recalled the event the first time, your brain saved the information to your recent memory. The same concept applies to caching. Caching is a way of temporarily storing the contents of a webpage in locations near the user, similar to the way our memory works. There are several types of caching options available like database caching, application caching, and distributed caching. In this article, we’ll talk about web caching and how it affects user experience. What is web caching? Website developers use different techniques to optimize performance and improve speed. One such method is web caching, w... (more)

A Simple Trick For Faster Apps | @DevOpsSummit #APM #DevOps #AI #ML

I am often humbled by the depth of insight of those who toil in the trenches of the enterprise data center. At our Agility conference back in August, my cohort and I gave a presentation on the State of Application Delivery. One of the interesting tidbits of data we offered was that, over the course of the past year, our iHealth data shows a steady and nearly even split of HTTP and HTTPS traffic. To give you an example, my data from October was derived from over 3 million (3, 087, 211 to be precise) virtual servers. Of those, roughly 32% were configured to support HTTP, and another 30% were supporting HTTPS. Now, I’ve been looking at this data for more than a year, and it has stayed roughly the same with only slight variations up or down, but always within a couple percentage points of each other. But it wasn’t until a particularly astute customer spoke up that I un... (more)

Has healthcare.gov Claimed “Mission Accomplished” Too Soon?

Over the weekend those in charge of Healthcare.gov have claimed "Mission Accomplished," that the site is now performing optimally, and will be able to handle 50,000 concurrent users. The healthcare.gov team also stated that if there happens to be a problem they have software in place to help get to the root cause. Any affected user will get a number in line and receive an email when they can return to the site. However, when we tried to access the site today with our Ajax Edition to see what changes have been made, we received the following error message. In fact as of this report there have been new indications that thousands of people are getting the error message. The question we have is "is this Mission really Accomplished?" Mission Accomplished? Doesn't look like it for those who want to find their health insurance It is only about the end user experience The... (more)

In-Memory Database vs. In-Memory Data Grid By @GridGain | @CloudExpo [#BigData]

A few months ago, I spoke at the conference where I explained the difference between caching and an in-memory data grid. Today, having realized that many people are also looking to better understand the difference between two major categories in in-memory computing: In-Memory Database and In-Memory Data Grid, I am sharing the succinct version of my thinking on this topic - thanks to a recent analyst call that helped to put everything in place  TL;DR Skip to conclusion to get the bottom line. Nomenclature Let's clarify the naming and buzzwords first. In-Memory Database (IMDB) is a well-established category name and it is typically used unambiguously. It is important to note that there is a new crop of traditional databases with serious In-Memory "options". That includes MS SQL 2014, Oracle's Exalytics and Exadata, and IBM DB2 with BLU offerings. The line is blurry be... (more)

Practical Approaches for Optimizing Website Performance

Optimizing website performance is a challenging task. Websites are composed of many moving parts - both on the client and on the server - and optimizing performance requires a multi-faceted approach that addresses potential problems in all moving parts. Performance bottlenecks are caused by an array of problems, from browser mechanics to server configuration, and a clear understanding of how to address these problems will provide AJAX ASP.NET developers with the tools necessary to make any website faster. What Does It Mean to Optimize Performance? Before any discussion about improving website performance begins, it's very important to ensure a clear understanding of what "performance" means in this context. With websites in particular, it's easy to confuse the terms "performance" and "scale." Both are important, but each focuses on a separate aspect of building a hig... (more)

Big Data | Thinking Outside the Firewall

A few months back, Gartner placed big data at the peak of its hype cycle for cloud computing, meaning most big data products are solutions looking for a problem. I always find this bad entrepreneurial habit to be one of the most frustrating of our industry. Having recently joined Meltwater as head of marketing and product (BTW Meltwater is hiring marketing and product managers!), I think a lot about big data and how to unleash it’s value to solve important business problems, because that is our business. How does big data go from “so what” to “must have”? The Big Data Challenge Big data is a by-product of the Internet and the ever increasing power of computers. Kind of like petroleum sludge. We know there must be great value buried within this vast, raw resource, but the challenge lies in figuring out how to turn it into something useful like plastic, or the other th... (more)

The Website Performance Mistakes of Mobile Shopping Sites in 2013

Our new survey tells us that up to 50% of online shoppers this year will use their mobile device. Good news is that most retail stores that have an online store now also offer a mobile version, e.g., http://m.gap.com, http://m.jcpenney.com, http://m.bestbuy.com. In the past years we have done a deep dive web performance analysis on the desktop versions of these sites and blogged about it. This year we took a look at the mobile sites and found some "terrible" website performance mistakes that will most likely frustrate the mobile shopper. The "highlights" (or lowlights) that we found are: 87 roundtrips from 25 different domains for a single mobile page 28 redirects from the mobile site to the desktop site for downloading JS and CSS 2.5MB of page size for the shopping cart Some pages are already optimized for mobile - but some critical pages are overloaded, have too m... (more)

Azure Data Lake Store in Private Preview | @ThingsExpo @ScottGu #BigData #IoT #InternetOfThings

Azure Data Lake Store in Private Preview Recently announced Azure Data Lake addresses the big data  3V challenges; volume, velocity and variety. It is one more storage feature in addition to blobs and SQL Azure database. Azure Data Lake (should have been Azure Data Ocean IMHO) is really omnipotent. Just look at the key capabilities of Azure Data Lake: Any Data Native format, distributed data store. No need to pre-define schema information. From unstructured to structured data handling. Any Size Kilo bytes to Exa bytes OK. Ready for read/write. At any scale Scale to match your needs; high volume data handling of small writes and low latency. Can Aaddress near real-time web analytics scenarios. HDFS Compatible Works out-of-the box with Hadoop including services such as HD Insight Full integration with Azure Active Directory Supporting identity and access management over all of ... (more)

Google OS - A Cynical View

If you didn’t hear that Google has announced that in 2010 consumers will have a chance to enjoy new Chrome-based OS, stop reading and do you homework first. Done? Now we can move on, and let’s do it by the rules – positive things first, then some bile followed by a happy end. I really like Google. They produce easy to use applications that work great. I use their search engine about a hundred times a day. Their applications make sense. Nine months ago they released a Web browser called Chrome, and I liked it. Back than I suggested that in a year Chrome will bite off a decent chunk of the Web browser's market. (see  http://yakovfain.javadevelopersjournal.com/i_like_google_chrome.htm). I was wrong. They’ve bitten a really small piece of the browser’s pie. For lots of companies 3% of any market would be like money from home, but for Google it’s a failure. Now they sa... (more)

SAS to Analyze Social Media Fraud

Social Media on Ulitzer To prevent 2009 from becoming the “Year of the Phish” in Asia Pacific (as opposed to the Year of the Ox), SAS, the leader in business analytics, has launched innovative new software to fight fraud, but also to better understand customer sentiment. SAS Social Network Analysis and SAS’ social media analysis solution help organizations uncover hidden relationships between individuals and data; detect patterns and trends; and mine text and other unstructured data. From phishing and skimming to claims fraud and money laundering, increasingly sophisticated fraud techniques are causing huge losses and harming customer relationships. So too are negative online comments that quickly spread through Web sites, blogs, Twitter and other channels, resulting in lost business and damaged brands. The rapid adoption of social media has given the public a pla... (more)

Instant Professionalism Online Despite Yourself...with Ulitzer

Personal Branding on Ulitzer I read an article by an author on Ulitzer.com and was amazed at the professional image it provided him. I immediately researched Ulitzer to see if there was yet hope for me. I am a technology blogger on the subject of mobile computing strategies.  As I was doing research I came across the author Ian Thain, a fellow mobile computing blogger, who had a very professional website on Ulitzer (www.ulitzer.com). Professional envy motivated me to investigate this thing called Ulitzer. Ian's website looked like he had spent a great deal of time and money on it - all things I am short on. I carefully studied Ian's website to see how it was set up.  It looked like an expensive industry portal with colorful graphics, animation and industry news. It had tabs that filtered articles, by most popular, by date, etc.  I have blogged for over 5 years so... (more)