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Darrell Burgan09/27/14
10075 views
14 replies

The NoSQL Advice I Wish Someone Had Given Me

In this article, I hope to share some of these lessons with you and give you the practical advice I wish someone would have given me before I started. So here goes.

Armel Nene09/27/14
8303 views
0 replies

Big Data Architecture Best Practices

The marketing department of software vendors have done a good job making Big Data go mainstream, whatever that means. The promise of we can achieve anything if we make use of Big Data; business insight and beating our competitions to submission. Yet, there is no well-publicised Big Data successful implementation. The question is: why not?

Peter Zaitsev09/27/14
3655 views
0 replies

How to Calculate the Correct Size of Percona XtraDB Cluster’s gcache

When a write query is sent to Percona XtraDB Cluster all the nodes store the writeset on a file called gcache. By default the name of that file is galera.cache and it is stored in the MySQL datadir. This is a very important file, and as usual with the most important variables in MySQL, the default value is not good for high-loaded servers. Let’s see why it’s important and how can we calculate a correct value for the workload of our cluster.

Michael Sahota09/26/14
7868 views
2 replies

Letting Go of Agile (Culture)

This post is about how we may accidentally harm organizations with Agile and how we can let go so that we may succeed.

G. Ryan Spain09/26/14
5207 views
0 replies

How to Find Duplicate Indexes

Josh Berkus at Database Soup wrote a post recently explaining how to find duplicate indexes in SQL. He has written a few queries to help those who need to filter through large amounts of indexes within a database. Berkus says his queries help to minimize the number of false positives that occur.

Mike Cottmeyer09/26/14
2612 views
0 replies

Telling Executive Stories

Delivery teams manage and deliver value supported by the tool user stories. While these forms support delivery team conversations well, they are inadequate to support the richer conversation needed by executives to manage investment and value. What forms the basis of these stories?

John Piekos09/26/14
2137 views
0 replies

Optimizing Index Performance - A CMU Intern’s Work at VoltDB

My name is Yetian Xia. I worked as a software engineering intern at VoltDB during the summer, working with the core team. My favorite project was optimizing the performance of deleting entries from a low-cardinality non-unique tree index.

Benjamin Ball09/25/14
3853 views
0 replies

The No Fluff Introduction to Big Data

Due to the obstacles presented by large scale data management, the goal for developers and data scientists is two-fold: first, systems must be created to handle large scale data, and two, business intelligence and insights should be acquired from analysis of the data.

Rob Galanakis09/25/14
14763 views
6 replies

Two weeks is the worst sprint length

I still prefer one week sprints, which isn’t surprising as I’m an XP advocate. But if a team isn’t able or willing to move to one week sprints, don’t default to two weeks.

Peter Zaitsev09/25/14
3010 views
0 replies

Syncing MySQL Slave Table with pt-online-schema-change

I recently encountered a situation in which after running Percona Toolkit’s pt-table-checksum on a customer system, 95% of the table on the MySQL master was different on the MySQL slave... So how did we solve it? With pt-online-schema-change and a NOOP ALTER.

Benjamin Ball09/25/14
4549 views
0 replies

How eBay Uses OpenStack Trove in Production

I came across a conference video starring Auston McReynolds and Mat Lowery, both software engineers at eBay, who go on to describe the use and role of OpenStack Trove in eBay's process. They cover the creation of eBay's OpenStack cloud and using Trove throughout the company.

Robert Diana09/25/14
5217 views
0 replies

Geek Reading September 23, 2014

These items are a combination of tech business news, development news and programming tools and techniques. This week's topics include Gradle dependencies, memory corruption, Redis developer takeaways, Akka actor messaging, microservices and jars, Nashorn API management, and more.

Rick Delgado09/25/14
2850 views
0 replies

A Short History of Computer Security Threats

Ever since people first connected their computers to the Internet, there have been people hacking into those computers, and these attacks have become more sophisticated over the years.

Alec Noller09/24/14
12008 views
0 replies

Dev of the Week: Sander Mak

This week we're talking to Sander Mak, Senior Software Engineer at Luminis Technologies, JavaOne Rockstar, and featured author in DZone's 2014 Guide to Big Data.

Alec Noller09/24/14
8950 views
0 replies

The Best of DZone: September 16 - 23

If you missed anything on DZone this week, now's your chance to catch up! This week's best include four ways to loop over a hashmap in Java, how to reduce boilerplate code in Java applications, an infographic of the IoT developer mindshare, dropping the R and M from ORM, and more.