Blog

All of the blog posts contained within The Tech Teapot with the most recent at the top.

Off Topic: Slug fest

Had a really gross moment last night. I was busy pouring my evening cup of tea (organic rooibos) when what should appear in my cup but a nice big fat juicy slug. How the slug managed to get into my kettle I do not know given that there aren’t any obvious ways in (the spout has a filter over it.)

Annie just told me that slug slime is supposed to be used for anti-ageing products so maybe I’ll get a nice youthful complexion out of the whole thing. 😄

Hurrah! Some real data to play with

I’ve written about my woes finding some good test data sets for PowerTime before…some good news. There is a place you can get hold of climate data for free over at European Climate Assessment & Dataset project. Whilst the temperature data is averaged, the precipitation data is not…so that’s what I’m going to use for my tests. The Berlin data set goes all the way back to 1876 with only quite minor disruption during World War 2. Quite an achievement.

Hub projects in open source network management

Almost as a doodle I thought I’d create a graph depicting the dependencies between a selection of open source network management projects.

Once I’d done it, it occurred to me how much just about everything depends on just a couple of projects or project variants of, RRDTool & Net-SNMP.

A Selection of Open Source Network Management Dependencies

The main conclusion I draw from the above graph is that if you wish to create a thriving platform for open source network management, you’d better have something like those two hub projects.

Whither Met Office openness update

A couple of months ago or so I lamented the fact that the raw temperature data from the UK met office is not publicly available.

I’ve just received some further feedback from the Met Office.

I was partially wrong, there is a lot more information available than I thought. Here’s a quote with a list of resources:

There is a wide variety of historical information that is available on our website and information can also be obtained from our National Meteorological Library and Archive see http://www.metoffice.gov.uk/corporate/library/index.html.

Creating open source software using Microsoft's .NET framework

Whilst developing PowerTime, I’ve kept in mind the requirement that I need to ensure that the software can be built using only freely available tools.

Of course we will eventually provide an installer, but I like the idea that people can build the software on their own machine if they want to.

One way to make self building easier is to minimise the number of external dependencies required. To that end, everything is written in C# and only standard .NET framework libraries are used. No external libraries are required to create a functional build.

If it works...

…it’s not AI.

Funny. 😄

Just ran across a great paper written by Eve Phillips documenting a history of artificial intelligence. Well worth a read. The title made me smile because my first job in IT, all the way back to 1989, was writing an expert system and it most certainly did not work.

The above paper reference came from Dan Weinreb’s post Why Did Symbolics Fail?

If you ever want to start a company, you can learn a lot from reading war stories like the ones herein.

Microsoft myopia...update

I complained in my recent Microsoft mypopia post that Microsoft had failed to support the main unit testing framework inside Visual Studio.

Happily, I’ve found a solution in the form of a Visual Studio add-in called TestDriven.NET. Now I can execute and debug my NUnit tests all from inside Visual Studio. 😄

Just need a bit of wallet surgery first. 😉

RE: Why Only Two?

John Willis over at IT Management and Cloud Blog posted an interesting post I’d like to reply to.

The key question is will Enterprise customers make an investment in companies like OpenNMS and Nagios with out the warm and fuzzy that Software Companies provide.

That’s certainly an interesting perspective John…

It isn’t that Nagios/OpenNMS aren’t hitting enterprise customers. It is the nature of the sale that is different.

Nagios/OpenNMS is more of a bottom up kinda sell. Network technicians use the projects without telling the higher ups and hopefully they can spring for consultancy and training later on after they’ve derived value from it.