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Are you developing or hosting PHP applications? Are you doing performance sanity checks along your delivery pipeline? No? Not Yet? Then start with a quick check. It only takes 15 minutes and it really pays off. As a developer you can improve your code, and as somebody responsible for y...
Poorly performing websites, like Twitter’s recent fiasco with Ellen’s selfie, are a constant source of irritation for users. At first you think it’s your computer, or maybe someone on your block is downloading the entire “Game of Thrones” series. But, when nothing changes after refresh...
Have you seen this error message before “java.sql.Exception: ORA-00060: deadlock detected while waiting for resource”? This is caused when parallel updates require locks on either rows or tables in your database. I recently ran into this exception on an instance of an IBM eCommerce Se...
Telerik Controls are great for building modern, rich clients, and web applications often seen at the enterprise level. I just worked with a company that uses these controls in their soon-to-be-released customer-facing SharePoint portal. They ran a small load test that showed that the r...
I would say that only one out of a million exceptions thrown in an application actually makes it to a log file – unless you run your application in verbose logging mode – Do you agree? No? Here is why I think that is: because most exceptions are handled by your code or by the framework...
Are you serving .SWF files from your web server and getting complaints from your end users that your flash app is “just slow?” Or has your Ops team wondered why you see such high web request response times for some of the web service calls executed by your Flash Client? I was just wor...
Two weeks ago I wrote about how the world’s largest exporter of dairy products uses SAP to support their huge delivery chain of dairy products. We recounted how Fonterra used an Application Performance Monitoring (APM) tool to discover that additional training for employees was necessa...
We first discussed Super Bowl lessons learned around bloated web pages that brought down sites like Kia.com. On the other side, GoDaddy did a great job in reducing the page load just for the time of the Super Bowl to ensure that their site wouldn’t go down. But there is more to learn ...
Maximum productivity can be achieved more efficiently through event correlation, system automation and predictive analysis. Making that a reality however, requires consideration on how to manage the integration touch points from multiple toolsets and openness to the intrinsic value tha...
User experience can boost or kill your revenue. Unhappy users are likely to abandon a service they struggle with and go to your competitors. To effectively manage the experience of your users, you need to efficiently monitor and understand their transactions in your mobile, web and ent...
How often do you deploy new software? Once a month, once a week or every hour? The more often you deploy the smaller your changes will be. That’s good! Why? Because smaller changes tend to be less risky since it’s easier to keep track of what has really changed. For developers, it’s ce...
In my previous posts I wrote about how important it is to have end-to-end visibility into SAP in order to avoid serious problems in our delivery chain or to discover that application performance degradation was caused by malfunctioning hardware. One of our New Zealand customers, Fonte...
APM is entering into a period of intense competition of technology and strategy with a multiplicity of vendors and viewpoints. While the nomenclature used within its space has five distinct dimensions that elucidate its meaning, the very acronym of APM is in question: Application Perfo...
This year, the Seattle Seahawks dealt Denver one of the worst beatings in recent Super Bowl history; however, the only highlights of the broadcast were the commercials. They ranged from serious and thought-provoking to funny and quirky. Each ad was meant to do one thing: drive eyes to ...
Far too often “the database” is blamed for impacting performance and scalability of applications. In many cases, however, it turns out that it’s not the database itself, but the way the database is accessed by the application. Common problem patterns are requesting too much data, ineff...
With retail busy swinging for the fences this past holiday season, merchants and marketers may have forgotten to include IT when they launched big events to hit their targets. As both industry professionals and shoppers know, if your site doesn’t load properly, then “the conversion tha...
This book is the perfect place for an experienced developer to start with iOS programming. I say experienced developer because this book does a great job of showing you the basics of C and the Objective-C language, but if you don't understand the basics of programming, you are probably...
“Step right in. You will witness a show of magic and wonders, passion and trust, speed and misunderstandings.” a (slightly altered) catch phrase that keeps popping in my head when talking to companies in regards to managing Content Delivery Networks (CDN). Apart from the misconception ...
A project management office contributes value to its organization by helping executives make informed, portfolio-based decisions regarding project prioritization and resource allocation. This case study shows how a PMO can accomplish this mission more effectively by delivering value in...
When I first started flipping through this book the diverse set of topics threw me for a loop. Then I read the introduction where the authors say, "This publication aims to provide development information on the intermediate-to-advanced topics that are otherwise not worthy of standalon...
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 t...
Mobile performance will make or break retailers this holiday shopping season – so the importance of application performance management (APM) cannot be underestimated. The convergence of Black Friday, Cyber Monday, Hannukah and Christmas shopping combined with a record level of mobile s...
Kweo runs their user engagement platform on a very interesting stack: They use Netty, Apache Kafka, Storm / Trident, Cassandra and ZeroMQ. They run all of their infrastructure on Amazon EC2. One of their most important requirements is Real time User Interaction which obviously require...
Over the last two decades, various Agile approaches have been introduced and practiced. Of these, in last 5 to 7 years, Scrum has gained the most popularity resulting from a combination of simplicity, ease of use, and effective public relations. Scrum success in software development or...
I personally don’t like the term “War Room” when describing a firefighting situation that many software companies have to deal with when systems go down or have problems. The way these war rooms typically play out is that key personnel (engineers, operations, business) are summoned int...
A commonly used preventative measure is storing data via RAID arrays, but it is important to understand that not all levels of RAID provide sufficient protection. Commonly, RAID 10 (combination of RAID 1 and RAID 0) for quick recovery, and RAID 6 (RAID 5 plus an additional hard disk to...
Client latency is driven by multiple factors, in the browser, network, and code. Dan Riti explores all those factors, including how Google... Let's face it, users are impatient. They demand a blazingly fast experience and accept no substitutes. Google performed a study in 2010 which p...
Most of my friends in the US are looking forward to the new Healthcare website that allows them to select the health insurance that best suits their needs. As with any new website that has been anticipated by a lot of people, it was not a big surprise that there were glitches when mill...
In the recent survey "State of Enterprise Mobility 2013" I asked the question, "How many wireless devices do you use daily?" An incredible 69 percent use three or more wireless devices daily. I myself use three - my MacBook Pro, iPad mini and iPhone. I use my iPad mostly for reading ...
The first thought that came to mind when I saw this book was, "Uhg, another Scrum book, you've got to be kidding me." Then the title of Scrum Shortcuts really gave me a sickening feeling. The majority of the Scrum teams I have watched work do nothing but take shortcuts. They sure as he...
Healthcare technology provider TriZetto has been improving its development processes and modernizing its ability to speed the applications lifecycle process, using quality and Agile methods tools to better support a lifecycle approach to software. To learn more about how quality and A...
Introducing TraceView's latest support for Solr Server, which provides breakdown of each operation, enabling more precise performance monitoring and troubleshooting. Solr Server provides JMX statistics that show performance details such as query speed and cache hit/miss rates in a mac...
It's time to start thinking about the minimum lovable product instead of the minimum viable product. A can of cat food is a minimum viable product (MVP) when you are starving, but it’s highly unsatisfying and unlikely to generate a loyal following (of humans). And there you have on...
If transaction times jump from less than one second to more than 60 seconds after a software upgrade, it is evident that there is a problem that needs investigation. This scenario was experienced by a customer with its time-tracking application. Our customer identified this performance...
As Netuitive’s director of product management, I was fortunate to attend the O’Reilly Velocity Conference this year in San Francisco where one presentation in particular stood out. The presentation, “Monitoring & Observability – Getting Off the Starting Blocks” was by technology vis...
External communication methodology has evolved vastly in the last century, especially during the last two decades. We have witnessed the evolution in communication methodology with every new step the internet revolution has taken forward. So, we have moved from sending letters to phone...
Our client TescaraHats (name changed for commercial reasons), a European market leader in manufacturing customized hats, decided to expand its market reach with an e-commerce site where its potential customers could choose, customize and order hats online. TescaraHats used an APM tool ...
This review covers both Core Java Volume I--Fundamentals (9th Edition) and Core Java, Volume II--Advanced Features (9th Edition). Both books are part of the Prentice Hall Core Series. I actually got Volume II first and liked it so much I ordered Volume I. I felt like I was missing the...
A few weeks back webserver request queueing came under heightened scrutiny as rapgenius blasted Heroku for not using as much autotune as promised in their “intelligent load balancing”. If you somehow missed the write-up (or response), check it out for its great simulations of load bala...
Blender is a beast. At least to a guy like me that is usual in code and not in user interface tools. Sure I use Xcode, Eclipse, and Visual Studio but they just give me a place to code. I have used Photoshop, GIMP, and Expression Studio which make you depend on the tools available but B...