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Latest Articles from AJAX & RIA Journal
Modern Application Performance Management (APM) solutions can be tremendously helpful in delivering end-to-end visibility into the application delivery chain: across all tiers and network sections, all the way to the end user. In previous blog posts we showed how to narrow down to vari...
More and more Web sites and applications are being moved from Apache to nginx. While Apache is still the number one HTTP server with more than 60% on active Web sites, nginx has now taken over the 2nd place in the ranking and relegated Microsoft’s IIS to 3rd place. Among the top 10.000...
In my opinion, this is one of those articles that comes around once a generation! I don’t think it’s overstating the case to say that this captures all the most important lessons about big data, Internet of Things, massively scaled-out services in the cloud, growth hacking etc. It’s up...
As an enterprise and software architect the one thing I hate most about my job is documentation, yet the importance of doing documentation on sizable projects is what I find myself preaching about the most. One reason I understand the importance of documentation is that I came from an...
Nobody likes waiting in line. This is the fundamental reason enterprise computing has changed so dramatically over the past generation. Nobody enjoyed waiting for what was then called MIS to deliver their batched reports on MIS's schedule and terms. The PC changed all that, even as IT ...
Encryption is widely recognized as the gold standard for protecting data privacy, but encryption is only as strong as its key management. Critical credential files such as Oracle wallet files, Java KeyStores, Secure Shell (SSH) key files, and Secure Sockets Layer (SSL) certificate file...
The premiere issue of the Internet of @ThingsExpo Newsletter contains highlights of the hottest sessions and speakers from Internet of @ThingsExpo, Call for Papers information, and sponsorship opportunities.
There are quite a few academic papers and products inspired by the vision of memory-centric DBMS. Most of modern databases serving business applications can already fit within large server RAM available today (2TB). DBMS are heading to memory centric designs and implementation. Contem...
“At Cloud Expo in NYC last week I sat in on the Internet of Things power panel and then presented about how to monetize the Internet of Things. The room was packed, standing room only and I stuck around for a full 30 minutes afterwards answering questions before I had to tear myself aw...
Express Logic, Inc., the worldwide leader in royalty-free real-time operating systems (RTOSes), introduces X-Ware™, an integrated, optimized, comprehensive middleware solution that provides a solid foundation for Internet of Things (IoT) development. X-Ware consists of Express Logic’s ...
I'm reading a McKinsey report from May 2013 that talks about 12 disruptive technologies, including cloud computing and the Internet of Things (IoT). I'll focus on the IoT here. The report estimates the IoT Internet to be worth between $2.7 and $6.2 trillion by the year 2025.(The world'...
In Part V, we discussed processing delays caused by “slow” client and server nodes. In Part VI, we’ll discuss the Nagle algorithm, a behavior that can have a devastating impact on performance and, in many ways, appear to be a processing delay. Beyond being important for (reasonably) a...
I recently led a panel discussion for SYS-CON.TV on the topic of “Cloud Computing 2.0,” a term I decided to employ just a few minutes before we started recording. A few years ago, any right-minded person would wince at the use of “2.0” to describe anything, as it had long become a m...
In Part IV, we wrapped up our discussions on bandwidth, congestion and packet loss. In Part V, we examine the four types of processing delays visible on the network, using the request/reply paradigm we outlined in Part I. From the network’s perspective, we allocate the time period bet...
In Part II, we discussed performance constraints caused by both bandwidth and congestion. Purposely omitted was a discussion about packet loss – which is often an inevitable result of heavy network congestion. I’ll use this blog entry on TCP slow-start to introduce the Congestion Windo...
Compuware Corporation has announced that SD Times Magazine has named Compuware APM to its 2014 SD Times 100 list as a leader and innovator in the "Mobile Testing, Quality Assurance, and Security" category. The award reaffirms the company's ongoing success to driving mobile application ...
When we think of application performance problems that are network-related, we often immediately think of bandwidth and congestion as likely culprits; faster speeds and less traffic will solve everything, right? This is reminiscent of recent ISP wars; which is better, DSL or cable mode...
As a network professional, one of your newer roles is likely troubleshooting poor application performance. For most of us, our jobs have advanced beyond network “health,” towards sharing – if not owning – responsibility for application delivery. There are many reasons for this more jus...
make it a lot easier and more fun to develop apps for both iOS and OS X. That’s in contrast to the current language, Objective-C, which is somewhat antiquated and considered by many to be difficult to use. Although Swift is easier to use, we’re sure that there will be issues like crash...
You can spend MILLIONS every year improving and maintaining your application, but if you have no insight into your competition how do you know your place in the market and if all that investment has been worthwhile? “If you know the enemy and know yourself, you need not fear the resul...
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...
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...
In production support it is often hard to correlate what might be happening on local servers with what users are reportedly experiencing. In April, the developers for a Java application that handles electronic distribution of scanned mail and electronic faxes were receiving reports tha...
Have you ever deployed a change to production and thought “All went well – Systems are operating as expected!” but then you had to deal with users complaining that they keep running into errors? We recently moved some of our systems between two of our data centers – even moving some c...
Adopting an Application Performance Management (APM) strategy will help you manage the quality of the Customer Experience. The challenge is that APM has evolved into a mosaic of monitoring tools, analytic engines, and event processors that provide many solutions to different problem se...
Service Level Agreements (SLAs) offered by cloud providers are too often about Specification and not Service. It should come as no surprise that vanity metrics, like Availability, are used instead of business metrics because they are simple to measure and easy to misconstrue. Metrics t...
No matter how often you deploy your application or how sophisticated your delivery pipeline is, you always need to know the quality status of the software you are building. That can only be done if you measure it; but measure what exactly? In Part 1 we introduced the Concept of Quality...
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...
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...
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...
HTML5 is still one of the most discussed topics amongst us technical types. The key challenge, however, has remained unanswered for a long time. How do you effectively wrap HTML5 for use in native mobile applications? Unfortunately I do not have a universal answer, but I do have a s...
When the agile movement re-cast the roles of the SDLC they did so with small projects as the baseline of their experience. A typical minimal SDLC method includes subject matter experts (those who execute the current workflow activities), a Project Manager, a Business Analyst, a Softwar...
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...
The purpose of this article is to describe the steps involve to configure Datapower service for the Database communication. The service will parse the incoming parameters from the request, construct a SQL query string and returns the data from the Database, based on the constructed que...
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...
Java 8 has been reengineered and the most significant enhancement in this release is Project Lambda Expressions for the Java Programming Language. To be more comprehensive, the standout features of JDK 8 are Project Lambda the Nashorn JavaScript Engine and a new Date and Time API. Al...
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...