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Hubert Klein Ikkink06/28/12
4408 views
1 replies

CloudFoundry Coolness: Setting Environment Variables for an Application

We can set environment variables for an application that is deployed in CloudFoundry. For example if we want to pass a JAVA_OPTS environment variable with a value of -XX:MaxPermSize=256m

Bozhidar Bozhanov06/28/12
5644 views
1 replies

Proof of Concept: Play! Framework

We are starting a new project and we have to choose the web framework. Our default choice is grails, because the team already has experience with it, but I decided to give Play! and Scala a chance.

Mikio Braun06/28/12
4292 views
0 replies

Is Machine Learning Losing Its Impact?

A recent paper written by Kiri Wagstaff claims that that machine learning might be in danger of losing its impact because the community as a whole has become quite self-referential.

Joe Miller06/28/12
4937 views
0 replies

Testing DNS Servers with Python - dns_compare.py

Sometimes it might be nice to be able to test a DNS server’s output, such as with a continuous monitoring system, or as a validation tool when migrating to a different DNS server (or service.) Here's a little snippet I use

Itamar Syn-hershko06/28/12
5207 views
0 replies

FastVectorHighlighter Issues Revisited

As DIGY in the comments spotted right away, my approach was all wrong. Yes, I knew any CharFilter or Tokenizer implementation would store term positions and offsets that take into account any skips done in the content, but since it didn't work for me I didn't care to look any deeper and just made that work around, and then ran to tell.

Peter Zaitsev06/28/12
4856 views
0 replies

ALTER TABLE Performance with Fast Index Creation

Today I was looking at the ALTER TABLE performance with fast index creation and without it with different buffer pool sizes. Results are pretty interesting. I used modified Sysbench table for these tests because original table as initially created only...

Dmitriy Setrakyan06/28/12
6655 views
0 replies

Can You Use HBase as Your Persistent Store?

There are two ways you can integrate with Hadoop. One way is upstream integration in which you efficiently load data from HDFS.

Axel Rauschmayer06/28/12
5593 views
0 replies

Google I/O Day 1: the Highlights

This blog post describes the highlights of the keynote of the first day of the Google I/O conference. It does so from the vantage point of a developer and Apple user, so don’t be surprised to see developer information and comparisons with Apple.

Bozhidar Bozhanov06/28/12
9471 views
4 replies

From 2010: Why Startups Should Not Choose NoSQL

The NoSQL hype is omnipresent. And many startups are tempted to go for Cassandra/MongoDB/HBase/Redis/… . Here I’ll argue why they should rather stick to a SQL solution – MySQL or PostgreSQL.

Eric Genesky06/28/12
4269 views
0 replies

A Deep Discussion of the Joyent Cloud API

Here's a long (translation: detailed) post discussing the Joyent Cloud API starting with installation and ending with how to collect performance metrics using Joyent Cloud Analytics.

Claus Ibsen06/28/12
4661 views
2 replies

Riding the Camel with a New Hat: Red Hat Aquires FuseSource

This morning I woke up to the news out in the public that Red Hat to Acquire FuseSource. This is really great news for the FuseSource team, to find a new home that is truly Open Source down to its DNA.

Jim Bird06/28/12
15783 views
4 replies

Is Copy and Paste Programming Really a Problem?

It’s one of the most cited examples of technical debt, a lazy way of working, sloppy and short-sighted: an antipattern that adds to the long term cost of keeping a code base alive. But it’s also a natural way to get stuff done...

Matt Vickery06/27/12
4282 views
0 replies

Spring and C24 iO - Part 1 C24 Spring Core

The motivation for Part 1 of this series was an introduction to C24 iO, a brief explanation of some of it's basic capability and an introduction to iO models used as Spring beans.

Donal Daly06/27/12
3814 views
4 replies

Getting Past the Big Data Buzz to Yield Business Value

Despite the strong potential commercial advantage for business, developing an effective strategy to cope with existing and previously unexplored information could prove tough for many enterprises.

James Betteley06/27/12
4133 views
0 replies

PowerCLI: Automate Reverting CI Agents to a Snapshot

Basically the script just iterates over a list of VMs which are in a particular resource pool, and reverts them all to a snaphot. Here’s the script itself...