I wanted to install Gitlab 5.3 on a fresh Ubuntu 12. The tricky part is you need to have a version of git beyond the local apt version. You also want ruby 1.9.3 and only that version. I used mysql for a database but you could use postgres. These are my notes from doing it. … [Read more…]
How many times have you wanted to install rails 3 on a system and you ended up in dependency hell? I know I have. Life was simpler with Rails 1 and 2. You could use ruby 1.8.7 and all was good. Now you should use 1.9.3. On ubuntu systems it is confusing to install ruby … [Read more…]
I have googled this so many times I thought I would put it down for myself. I found this great blurb on Tony Arkles blog. Here’s a stupid unix trick: scp is an awesome tool for moving files around between unix-y machines (for instance, my Mac laptop and my Linux HTPC). Often enough, though, I … [Read more…]
After running my Ubuntu systems on nagios, I noticed that fresh installs of 12.04 have /boot volumes that get prematurely full. This is a common problem because old out-dated kernels do not get deleted. I have found this one-liner all over the internet but I put it here so I can reference it. dpkg –get-selections|grep … [Read more…]
Software projects should have three environments: development, staging, and production. These environments should essentially be identical. In practice this isn’t always possible but we should try to get as close as possible. Every developer has a development environment for each of their computers. This means WebDeveloperA could have one development environment on her laptop and … [Read more…]
This week at work I had an interesting problem, I needed to bulk import many, many CSV files into our database. I wanted to do this in an automated way that would not lose any data. I came up with this idea and it worked out really well. Luckily the filenames of the comma separated … [Read more…]
I added 5 nodes to my Hadoop Cluster and learned a lot more along the way. I decided to update the whole fleet to Hadoop 1.02 and fix a few other configuration items with the cluster. On the base 64-bit headless server install for Ubuntu 10.04.4 LTS I included the Open SSH server package. From … [Read more…]
I spend the last two days building a Hadoop cluster at work. Here are the steps you could go through to make your own cluster. This cluster uses: A fresh install of Ubuntu 10.04 LTS 64-bit Server (with only the OpenSSH package included on the install) Apache Hadoop 0.20.203.0 rc1 (the current stable version as … [Read more…]
I have been making google map mashups since 2007. In that time I’ve seen the Google Maps API change for the better. I have a few projects that are using version 2 of the API. I knew Google was deprecating support for this older API and it was time to upgrade. Most of my maps … [Read more…]
Yesterday at work I needed to install Nagios on an Ubuntu 10.10 server. It was pretty simple but I ran into a few hiccups that I wanted to document for myself the next time I needed to do this. I followed the regular Nagios Ubuntu quickstart quide except I used sudo on all my commands. … [Read more…]