Gerard Davison05/02/13
6621 views
5 replies
So I have been playing around with Tyrus, the reference implementation of the JSR 356 WebSocket for Java spec. Because I was looking at test tooling I was interested in running both the client and the server side in Java.
Erich Styger05/01/13
708 views
0 replies
Bootloaders are a very useful thing: it allows programming an application file without a debugger. This makes it ideal for upgrading a system in the field.
Keith Mayer05/01/13
524 views
0 replies
Continuing on in our Build Your Private Cloud in a Month series, today Yung Chou and I walk through the steps needed to dynamically optimize our Private Cloud Fabric.
Sean Hull05/01/13
645 views
0 replies
We’ve told you all about MySQL mult-master replication’s limitations. If you write to two masters it is bound to fail for myriad reasons. Now what? Do what the pros do, that’s what!
Sandeep Patel05/01/13
2426 views
0 replies
In this demo, we are using LOG4J library to log in the console.Logger Info will print the numbers in the console. A timer is used to randomly select some milliseconds to delay
Brian Swartzfager04/30/13
644 views
0 replies
While refactoring a particular process in a ColdFusion project at work, I learned two things I thought worth passing on:
Manik Surtani04/30/13
616 views
0 replies
The total order based protocol is a lock free multi-master scheme (i.e. all the Infinispan nodes are able to execute read and write transactions) commit protocol.
Dan Haywood04/30/13
824 views
0 replies
In this next video in my series of using Eclipse effectively, I show how how to use Eclipse’s quick-fix refactoring (and a little common sense) to restructure some hairy code into something rather more palatable.
Mark Needham04/30/13
689 views
1 replies
A few months ago I wrote about my initial experiences with A/B testing and since then we’ve been working on another one and learnt some things around reporting on these types of tests that I thought was interesting.
A. Jesse Jiryu Davis04/29/13
777 views
0 replies
One of the challenges I face is: if the connect pool assigns a socket to a thread and the thread dies, how do we reclaim the socket for the general pool?
Leigh Shevchik04/29/13
658 views
0 replies
A few years ago multi-threading support in Ruby was flaky or non-existent. The Ruby agent came of age in that world, where the only real option for concurrency was running multiple processes. Recent versions of JRuby and MRI have changed that landscape.
Allen Coin04/29/13
891 views
0 replies
There are many implementations of JavaScript, meant to run either on the JVM or standalone as native code. Both approaches have their respective pros and cons. The soon-to-be open sourced Oracle Nashorn JavaScript project is based on the former approach.
Allen Coin04/29/13
607 views
0 replies
Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Vishal Jain04/29/13
401 views
0 replies
Here I’m going to suggest NOT to use synchronization (or at least not using locks) if possible. Why? because it can open a can of dangerous worms if you use it without utmost care.
Allen Coin04/28/13
556 views
0 replies
What is the performance cost of a new feature? This session will introduce these topics and give examples for services most people are familiar with.
Leigh Shevchik04/28/13
709 views
0 replies
If you’re a Rails developer, you know that developing a great web app is a straightforward process. While that offers many advantages, some apps grow too large and become hard to manage.
Rob Allen04/27/13
980 views
0 replies
I recently had a problem with a ZF2 based website where users were reporting seeing the error page displayed, but I couldn't reproduce in testing. To find this problem I decided to log every exception to a file so I could then go back and work out what was happening.
Peter Zaitsev04/27/13
590 views
0 replies
The components are designed to integrate seamlessly with widely deployed solutions such as Nagios and Cacti, and are delivered in the form of templates, plugins, and scripts.
Mark Needham04/26/13
592 views
0 replies
As I mentioned a couple of weeks ago I’ve been working on a tutorial about thinking through problems in graphs and since it’s a Sinatra application I thought thin would be a decent choice for web server.
Allen Coin04/26/13
942 views
0 replies
Speed is an essential for a great web experience but it often gets overlooked. We'll examine how speed affects the users' experience and cover some ways we can measure and analyse it.
Peter Zaitsev04/26/13
803 views
0 replies
Since our first post on transaction descriptors optimization introduced in Percona Server 5.5.30-30.2 and a followup by Dimitri Kravchuk we have received a large number of questions on why the benchmark results in both posts look rather different.
Leigh Shevchik04/26/13
519 views
0 replies
Until this point, most auto-scaling has been performed based on very simple server metrics such as CPU consumption, memory usage and network utilization. This approach has several pitfalls. The integration between New Relic and Tapp allows you to auto-scale your cloud resources based on Apdex.
David Catuhe04/25/13
1356 views
0 replies
Javascript is a wonderful language for developing Windows 8 apps. As a untyped, dynamic language, Javascript is really flexible but sometimes if you are not careful you may leave some memory leaks in your code.
Gary Sieling04/25/13
1175 views
0 replies
The following will move a series of files into subfolders. It hashes the file names, building a two character, two folder deep hierarchy to split the files, e.g. a1/b2. The motivation for this is to split 500,000 folders into a manageable hierarchy, to avoid file system limits – in NTFS this is quite slow, and well over the 64,000 limit in ext4.
Mark Needham04/25/13
573 views
0 replies
Tim and I were investigating a weird problem we were having with nginx where it was getting in a state where it had exceeded the number of open files allowed on the system and started rejecting requests.
