Interesting devops tech stuff

Pssst… Server Density v2 is coming soon!

Cloud


Deploying nginx with Puppet

This post is based on our talk at Puppet Camp Ghent. See our separate page for all our talk videos and slides about how Puppet is used to manage the [...]


MongoDB with Amazon’s EBS and Provisioned IOPS

This is a guest post by Charity Majors, a full stack systems geek who is currently building exciting things at Parse. She likes sed and awk and peaty scotches. We [...]


Sending async SMS with Node.js and cloud devops bots

Tom wasn’t the only one having fun at LeedsHack last month! One idea idea I’ve had a for while now, mostly since seeing a talk on Github’s Hubot at a conference last year and writing hippybot , is [...]


Cloud storage failures – the perfect storm

When the Qantas A380 suffered engine failure after taking off from Singapore in November last year, many things went wrong at the same time: The failure of the giant Rolls-Royce [...]


Black box cloud pricing

Pricing servers used to be fairly simple, and still is in many cases. There are a number of variables – memory, storage, CPU, data transfer – which are combined to [...]


The self aware system

When we first started with our server monitoring tool, Server Density, we had a single slice at Slicehost. Those were simple times – if it or any service running on [...]


UPS delivers at 11.22MB/s

We recently had one of our MongoDB database slaves go out of sync which requires a full resync from scratch. Because we have our slaves in a different data centre, [...]


Customer support as product development – disabling auto scaling server monitoring

Back in January we released a feature which uses a server’s hostname as a unique key, in addition to the agent key. This allows you to install the Server Density [...]


Using vCloud and Amazon CloudWatch with libcloud

One feature in our server monitoring application, Server Density, and indeed the one I had quite a bit of fun developing, is our cloud provider support. To clarify, we deem [...]


Automatically deploying server monitoring across servers

Last week we announced integration into a number of popular cloud provider APIs for our server monitoring service, Server Density. This functionality helps with administration when adding lots of servers, [...]