Category Archive: Uncategorized

Mar 15

Zombie Apocalypse! Docker AUFS + Java + Low Memory …. Hadoop in a Box Cloudera Manager Cluster

TL;DR — When using AUFS in a memory constrained environment, Java can spawn (lots!) of Zombies. A workaround is to change the storage driver to the device mapper. In working on the Hadoop in a box CDH cluster with Cloudera Manager, I’ve discovered a few interesting things about AUFS. These experiences are with Ubuntu 14.04 …

Continue reading »

Feb 15

Nifty Things for Week Ending 14 February 2016

It’s Moving! Akiyoshi’s illusion pages Puzzles Java Puzzlers Emacs Tips EmacsWiki: No Tabs — How to ensure that whitespace in code that is spaces not tabs. If you want to change tabs to spaces in existing files, select a region and run untabify.

Feb 08

Nifty Things for Week Ending 7 February 2016


Fun Stuff collective animal nouns flashcards — a group of groundhogs are a repetition and armadillo are a … fez. Programming kristopolous/TickTick: JSON in your Bash scripts — also Objects in Bash…. Cloud Docker 1.10: New Compose file, improved security, networking and much more! | Docker Blog — There are some really nifty things changed…. …

Continue reading »

Feb 01

Nifty Things for Week Ending 31 January 2016

I realized I’d missed doing this, so… here we go again 😉 Tools ggreer/the_silver_searcher: A code-searching tool similar to ack, but faster. monochromegane/the_platinum_searcher: A code search tool similar to ack and the_silver_searcher(ag). It supports multi platforms and multi encodings. junegunn/fzf: A command-line fuzzy finder written in Go Lightworks: The professional editor for everyone Tabula: Extract …

Continue reading »

Aug 15

“Well, I’m back,” he said.

When last we saw our intrepid hero, he was busily working with Raspberry Pi. With but a couple days notice, he was swept off to a knee surgeon. The surgery, itself, went well. However, I developed a secondary infection which threw me for a loop. I’m feeling better and finally getting back to it. Kudos …

Continue reading »

May 07

What developers think…

Check out @chaseadamsio’s Tweet:

May 07

Swarming Raspberry Pi: Building a Cloud in a Box

I’m speaking at a Meetup with DevOps Columbus The topic is about Docker, the cloud, and raspberry pi.

Mar 21

Swarming Raspberry Pi – Part 1


Here’s the first in a series of building a robust docker swarm of raspberry pi hosts. This installment goes through installing the Pi(s), modifiying the Docker Daemon config, and starting up a test to verify that everyone can join the cluster. The cluster which I am using consists of Raspberry Pi B+ x 5 Raspberry …

Continue reading »

Oct 29

First do no harm

If you can, help others; if you cannot do that, at least do not harm them. — Dalai Lama Over the past couple of years I’ve been trying to put into words my thoughts regarding the type of company where I’d like to work. There are companies I would not consider working for — their …

Continue reading »

Sep 28

Go executables are statically linked, except when they are not.

Generally GO executables are advertised as statically linked.

And they are, mostly, except for those times where they aren’t.

This is about one of those times, and what I discovered in the process.

Older posts «