Daily Archives: October 24, 2008

.net, java, software development, windows

UK job stats show Java decline

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Long-time readers of this blog may recall that I occasionally track IT job vacancies at Jobserve. There may be better sites to track; but it carries a lot of vacancies, and I need to be consistent. I started in early 2002 with the goal of seeing how much adoption Microsoft was winning for its .NET technology. In March 2002, there were 153 vacancies which mentioned C#, versus 2092 for Java.

Since then, C# has grown steadily. Today it overtook Java for the first time (in my random and infrequent visits). There are 2206 C# vacancies, 2066 Java.

I also noticed that the absolute number of vacancies has declined substantially since my last visit, but Java by more than C#. The economy, I guess.

Is Microsoft really sweeping all before it? Well, no. Vista has disappointed; Apple sales grow ever higher; Netcraft’s web server survey shows a decline in the percentage of IIS sites on the Internet in September 2008 and observes that 75% of new web sites coming online use Apache. So it is a matter of what statistic you want to pick. Nevertheless, there is clearly still a lot of C# development out there.

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amazon, security

Amazon’s cloud services growing up, sending out spam

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Amazon made multiple cloud announcements yesterday, just ahead of anything Microsoft might be pitching at PDC next week. The Elastic Compute Cloud is out of beta; there’s beta support for Windows 32-bit or 64-bit at $0.125 per hour; there’s a new web-based management console; and new automatic load balancing and scaling.

The last points may be the most significant. Smooth scaling is one of the toughest problems for any enterprise or busy web site. On demand scaling is totally compelling.

There’s still something missing. What if the service goes down? SLAs, sure, but saying to the boss “we’ve got an SLA” is little help if your business is losing thousands every hour through unavailability. I’d like to see something about failover to a non-Amazon service, or some convincing reason why we won’t see repeats of the downtime that has afflicted Amazon a couple of times already this year.

Here’s another sign the service is growing up. WordPress comment moderation shows me some basic info about the source IP of comment posters, and I noticed an item of spam yesterday that was sourced from an Amazon EC2 server:

No, it wasn’t one of the new Windows VMs! I traced it to a Swedish site running Plone, emailed the company to point out the problem but haven’t yet had a response. The spam itself makes no sense; probably a test.

Update: I received an explanation from the site:

We have been running a proxy on EC2 that rewrites certain websites for demo purposes. It has just been up for a few days, but it seems that someone thought it was a nice way to relay spam (we only proxy port 80, so just the message board kind).

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green computing, mobile

Mobile phone wastage

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According to a release today from Moneysupermarket.com, promoting its recycling service, two-thirds of us (in the UK) don’t recycle old handsets. The worrying aspect of this is that handsets include some nasty chemicals (mostly in batteries) which should be disposed of safely. Many people either don’t know or don’t care about the regulations and throw old phones in the bin, whereupon they end up in landfill. Of course you could say the same about laptops, iPods, shavers, and no end of other electronic devices with rechargeable batteries. Moneysupermarket.com made a model out of old phones to make the point (that’s London’s Post Office Tower in the background):

I am not sure about the recycling service – you might do better on eBay, except for worthless old devices. Still, I do think this is a problem that should be addressed. I hate the casual manner in which we chuck poison into landfill, risking it finding its way into the foodchain. A good start would be to regulate against the business model of the major telecom providers, which subsidises the hardware thus encouraging users to change their devices long before they are really worn out.

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