Production Monitoring is about ensuring the stability and health of our
system, that also includes the application. A lot of times we encounter
production systems that concentrate on System Monitoring, under the
assumption that a stable system leads to stable and healthy applications. So
let’s see what System Monitoring can tell us about our Application.
Let’s take a very simple two-tier Web Application:
A simple two tier web application
This is a simple multi-tier eCommerce solution. Users are concerned about bad
performance when they do a search. Let's see what we can find out about it if
performance is not satisfactory. We start by looking at a couple of simple
The best known operating system metric is CPU utilization, but it is also the
most misunderstood. This metric tells us how much time the CPU spent
executing code in the last interv... (more)
and Zak Ruvalcaba.
you're ready to learn jQuery. So, in this excerpt, you'll learn a working
subset of jQuery that will get you off to a fast start.
When you complete this section, you'll have all the jQuery skills that you
need for developing professional web pages. You can also go on to any of the
three sections that follow because they are written as independent modules.
If, for example, you want to learn how to use Ajax next, skip... (more)
Lately there has been a lot of buzz around HTML5 Web Sockets, which defines a
full-duplex communication channel that operates through a single socket over
the Web. HTML5 Web Sockets is not just another incremental enhancement to
conventional HTTP communications; it represents a colossal advance,
especially for real-time, event-driven web applications.
HTML5 Web Sockets provides such a dramatic improvement from the old,
convoluted "hacks" that are used to simulate a full-duplex connection in a
browser that it prompted Google's Ian Hickson - the HTML5 specification lead
- to say:
There is a reason I don’t have clients I work for plastered all over my
site, or home page, even though it would probably help us make new sales.
There’s a reason I don’t take linkbacks from SEO clients from their site
to boost my own sites ranking in Google even though I’m missing a big trick
SEO companies use to rank their own sites. We only take linkbacks from web
design clients and even then sometimes I nofollow it and usually today we use
Hobo or Hobo-web as the linkback (purely because that direct link can mean
sales if people like that site).There’s a reason we only host cl... (more)
Social Media on Ulitzer
I use all of these social media tools and although they haven't put me on my
own island in the Caribbean yet, I'm very pleased with the combined results.
1. Twitter – It’s the fastest way to share that you have created
something of value. As a bonus, Tweetdeck or CoTweet are good ways to manage
your Twitter efforts and research. Huge audience with lots of active
participants. There are a few shady characters on Twitter but just like being
at Grand Central Station, you just step aside and keep moving. It doesn't
mean you eschew the benefit. Micro-blogging is... (more)
Cloud Computing on Ulitzer
Getting a feel for the pulse of Cloud Computing can be a difficult endeavor.
According to recent Google search trends "Cloud Computing" is at an all time
high in terms of raw search queries. This has also been confirmed by analysts
reports such as Gartner's Hype Cycle which shows Cloud computing at what they
aptly describe as the peak of inflated expectations. For me tools like Google
Trends & Google Insights helps shed light on Cloud Computing from a search
engine point a view. But sadly does little in translating into actual
financial facts and figure... (more)