Using Mongo and Map Reduce on Apache Access Logs
Introduction With more and more traffic pouring into websites, it has become necessary to come up with creative ways to parse and analyze large data sets. One of the popular ways to do that lately is...
View ArticleQuick Tip: Dynamically Updating Screen Window Titles With The Current Server...
I haven’t had a ton of time for blogging lately but figured this tip was good enough to throw out there for all the screen users. One way I like to organize servers that I’m ssh’d into is using screen...
View ArticleDistributed MySQL Sleuthing on the Wire
Intro Oftentimes you need to know what MySQL is doing right now and furthermore if you are handling heavy traffic you probably have multiple instances of it running across many nodes. I’m going to...
View ArticlePercona Live 2012 – The Etsy Shard Architecture
I attended Percona Conf in Santa Clara last week. It was a great 3 days of lots of people dropping expert MySQL knowledge. I learned a lot and met some great people. I gave a talk about the Etsy shard...
View ArticleQuick Tip: Find the QEMU VM to Virtual Interface Mapping
The other day we were getting some messages on our network switch that a host was flapping between ports. It turns out we had two virtual hosts on different machines using the same MAC address (not...
View ArticleDitching Vino for X11vnc
I’d been using gnome vino as a VNC server for years on my media computer. This way I can use touchpad to control it from my iPad. It works fine, but a little bit clunky and badly documented, plus its...
View ArticleBuilding Your Own Cloud From Scratch
Intro There are a lot of private cloud solutions out there with great things built into them already to complete a full cloud stack – networking, dashboards, storage, and a framework that puts all the...
View ArticleWhy You Should Point Staging to Your Production Database
I have been thinking about this topic more recently as I’ve just started working with a new infrastructure, and one of the things that I noticed is the staging database is a separate copy of the...
View ArticleApproximate Times to Update an RDS Instance
Here’s a quick overview from an upgrade a couple months ago of an RDS instance type db.t2.medium to type db.r3.large. In addition to changing the instance type, we upgraded the disk from 64GB to 100GB,...
View ArticleInvestigating Data in Memcached
Intro Almost every company I can think of uses Memcached at some layer of their stack, however I haven’t until recently found a great way to take a snapshot of the keys in memory and their associated...
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