Back in 2009 when I was backpacking around Europe I remember waking up on the morning of June 1 and reading about how an Air France flight had disappeared somewhere over the Atlantic.
The lack of information on what happened to the flight intrigued me…
Earlier this month, at the Cloud 2020 summit, in Las Vegas, a group of service providers, vendors, buyers and pundits met to discuss the future of cloud infrastructure. One of the tracks was on the economics of infrastructure services, and inclu…
Some time ago, I wrote up how I created RPMs for ruby gems to simplify installation on EL-flavoured distributions. In the comments for that article, Jordan Sissel pointed me at his fpm tool which I said I’d check out if I ever needed to build any more rubygem RPMs. Well, that time has come. I wanted… Continue reading →
This is a quick post to introduce what I’m starting on testing with
ChefSpec. This is from Opscode’s
Java cookbook. While the recipe tested is really trivial, it actually
has some nuances that require detailed testing.
First off, the whole…
I’ve been working more with test-kitchen 1.0 alpha lately. The most
recent thing I’ve done is set up a Jenkins build server to run
test-kitchen on cookbooks. This post will describe how I did this for
my own environment, and how you can use…
This post will briefly describe how I did a TDD update to Opscode’s
runit to resolve an
issue reported last night.
First, the issue manifests itself only on Debian systems. The runit
cookbook’s runit_service provider will write an
LSB init…
My Note 2 recently started apparently locking up/freezing and apparently required powering off to fix it. Thanks to this post, I discovered that this seems to be a "known" problem with the eMMC chip which is susceptible to "Sudden Death Syndrome" There is an app to determine if your phone has the chip that is… Continue reading →
We have app servers with smallish local file systems and application data mounted over NFS. Sometimes I want to find all files matching a particular set of criteria but don't want to traverse the NFS mounts. Here's how to do it: find / -group sophosav -print -o -fstype nfs -prune Ordering is important, as is… Continue reading →
metrics often seem to lack details, such as units and metric types
looking at a metric name, it’s often hard to know
the unit a metric is measured in (bits, queries per second, jiffies, etc)
the “type” (a rate, an ever increasing counter, gauge, etc)…
I was experiencing problems with dnscache not resolving certain domains. On inspection, it turned out to be akamai-hosted domains that were failing. A quick google turned up this thread from 2004 (!), and a little further digging turned up this patch. I tweaked the patch a little to set QUERY_MAXLOOP to 1000 (original value: 100,… Continue reading →
