Archive for April 2008

Easy way how to transfer really big files


What does really big mean ? In my case few hundred megabytes, up to 1 GB. Clearly, too much for email attachments – most providers caps them at around 5-15 MB.

Since we started doing screencasts, I need quite often to transfer  work in progress – screen recordings, rendered MOV files between me and my co-host of the screencasts. I tried to upload the file to the company servers using VPN, but the speed of the secure uploads is nowhere close to being practical.

What works much better is free service called There is no registration required, you just enter the recipient email and start upload. After uploading, the system sends you an email with link and the files stays up for few days, then is deleted. More than enough for the other party to download. With self-destruction, it is also less worries for you to  remember clean-up.

The site also offers client for Windows, which I did not try (for obvious reasons) and shows ads selling software. These ads made me (strangely enough) more comfortable, as the intention of the creators is clear: attract traffic by free service and monetize on software sales / ads.

The other possible explanation is of course collecting of email adresses for not-so-noble purposes. I have no knowledge of this being the fact – since about a week and half of using the service, there was no spike in amount of spam. No spike meaning nothing beyond usual 300+ offers of 10 dollar Rolex, body enlargements, natural weight loss programs and help requests to transfer money from Nigeria and similars …

All my emails are consolidated on Gmail, which does terrific job of weeding out 99.99% of these – so I do not really care so much if one more spammer gets my email. But if you are really worried, you can always get the 10 minute email, use it for receiving notifications and then email the link manually. The down side is that you must keep the 10 minute email alive until upload finishes – this may take few refreshes.

Quick online diagramming tool


I am using OmniGraffle for most of my diagrams. OmniGraffle is an OS-X platform replacement for Visio – only easier to use and better looking (in my opinion). On rare occasions I do not work on my notebook, it is quite useful to have free alternative that allows to create a diagram that does not look too awful, without going through the hoops of downloading and installing software. The is exactly that tool.

Using you can very quickly create visual representation of simple structure with basic relations (parent/child) and links. You can define the text and links between elements and save the result as XML, HTML or JPG/PNG image. The result can look e.g. like this:

No a bad result, considering that its creation took less than 60 seconds.

If you need more control – like different shapes and stencils, look at Gliffy, which is much closer to actual desktop diagramming tool. It is free tool with paid enhanced version, available here.

A false "hang" of Finder


Yesterday, I have noticed interesting thing related to Finder and “beach ball of the death”. Suddenly, for no obvious reason, the top menu became unavailable and cursor changed to beachball every time I moved it there. The Bluetooth mouse stopped responding. Finder stopped responding. All symptoms as if Finder would hanging …

The cause of the issue was crash of unrelated application (iShowU, if you are curious), which brought up the crash report window. For some reason – maybe because it happened while changing spaces – the window was not visible. After closing the window, everything came back to life and even mouse reconnected (after disabling and re-enabling Bluetooth).

So next time it looks like an application did hang, make first sure that no windows expecting input are not open and hidden. Do not rely upon jumping dock icon – with bad luck and Spaces enabled, it is easy to switch the notification off.

Agile development team member mantra


Introducing code review and pair programming has often an impact on relationships in the team – especially when a critique needs to be delivered. It takes great degree of experience on both sides to communicate defects in the code for both the reviewer as well as for the code author to get something useful out of it.

I found this at which can be helpful (page is 404-ing now, but I luckily saved it in Google Docs way back) :

Everyone, including me, repeat after me:

  • I am not my code. A criticism of my code doesn’t have to be a personal attack on me.
  • I am not the tools that I use.
    A criticism of my tools shouldn’t be construed as a personal attack on me.
  • I am not the programming language that I use

I will try to remember it (and read it to all participants) next time we get into the passionate discussion about whether inheritance or delegation is the correct approach to implement feature X 🙂

Weird kind of spam that passes through Akismet


Spam has always been a big problem for all blogs. Fortunately, provides wonderfull Akismet spam filter which is works amazingly well. I do have switched on moderation for all comments, to make sure no spam gets through, but without Akismet it would be impossible to manage it because of the spam volume. Since I started this blog (August 2006), it caught over 17’000 (yes, seventeen thousands) spam posts. In other words, about 30 spam comments a day or almost 60 spam comments per published post.

In past few days I have notices new type of spam comments that pass through Akismet. What is really confusing, is that there is no obvious message in the text – no usual wonderdrugs, ten dollar Rolex or enlargement of body parts offers. Some of the links even point to quite legitimate, non commercial sites. I did not spend any time on it to find out a pattern yet. Some kind of campaign ? Few sites were related to stop animal cruelty – a very noble and worthy goal to support, but certainly not with methods like this …

Anybody else having similar experience ?

Here is what it looks like (I am posting it as image to avoid promoting the spammer):

Heroes Happened … here


Last week I attended one day event organized by Microsoft named Heroes Happens Here. It is series of introduction targeting new products: Windows Server 2008 (not out yet) SQL Server 2008 (not out yet) and Visual Studio 2008 (out and well).

I do not do much Microsoft development these days – my world is currently rather unevenly divided between Java (about 70 %), Web-ish technologies (XHTML, CSS, JavaScript, some Ruby) and OS-X (Objective C) which I am trying to squeeze in and get finally started. But Microsoft is such important platform that one must pay attention what is going on.

The event was well prepared and well executed. After all, Microsoft is doing this for quite some time and experience shows. For the first time, there were more people attending that the space in Cineplex allowed – so there were overflow rooms with huge projection screen for the slides/demos and smaller screen showing the video-feed of the presenter. We ended up in overflow room. One very important comment to whoever was in charge of camera control: please do NOT zoom in on presenter and then try to follow him as he walks. Seeing how the space floats in front of your eyes is quite nauseating experience. Even if the speaker is good looking guy (as I overheard from some female attendants), most of the audience does not really care about detailed snapshot of his face with moving background, but about slides and his words. Think about the people in the other room – if they are fine with seeing the presenter from large distance, so are we. No need to play movie director and add “dynamism” to the stream.

The above is probably only objection to the format and execution of the event – all the rest was fine. The speakers were great (thanks, Christian) and the script was surprisingly well acted on. You guys have more talent than just technology evangelism.

From the products introduced I was mostly interested in VS 2008 and SQL Server 2008. I really liked the enhancements done in 2008. Nothing revolutionary, but nice features that make coding experience and developer productivity so much better. I wish the VS 2005 had this features :-). However – and there is always however – I have seen nothing that Eclipse/IntelliJIDEA/Netbeans would not offer for quite some time. In many areas the VS is still playing catch-up (like refactoring), in others will probably never quite catch up (extensibility – being a closed source product not an open source platform). But now, it is closer than ever. Where VS will probably beat Eclipse is speed of execution and look && feel (being a native App). I am looking forward to find out. Great work, Microsoft. It is important that there is more than one platform/toolset to keep the innovation going.

I am also quite excited about enhancements in SQL server 2008, specially in BI area and reporting. I will wait for the release to find out though – no cycles right now. I just hope the features will not disappear the same way as the WinFS did from Vista.

The Windows Server 2008 is least important from my personal perspective. With more and more services moving into the cloud and progress in virtualization (“software appliances”), there are IMHO better alternatives to host your VM’s on – as well as better OS-es to be used as guest OS. I would probably prefer to use some derivate of Unix for both (OS-X or Linux) or true VM Host (VMWare) and Unix combination. Buying Windows license to run appliance starts to be prohibitively expensive, if you want to build many of them.

One final remark to the general impression from this and past Microsoft tech events: I realize that tone of the announcement and presentation must be upbeat and optimistic, but there is no reason make it sound as if Microsoft just invented it and if that was the greatest innovation since the TCP/IP protocol. Even more if it is basically a bug fix feature: “ .. and now, the graphic designer of Web page actually works and does not rearrange and screw up your markup every time you switch into visual mode and back as in VS 20xx“.

I was very happy to observe that this “spirit” was tuned down a lot. What I have seen on this year HHH is more sober, mature Microsoft that has really competitive product and does not need to sink down to the FUD as often as before – they even mentioned “works with Firefox” ;-), but still did not dare to say the G word.

On the other hand – what kind of “innovation” is to say that you do not really need to run GUI on Web server ? Did the last 30 years not happen or what ? Just because until PowerShell came out, the Windows “shell” was such a lame and hardly usable tool for doing anything non-trivial (compared to e.g. BASH), it does not make making GUI mandatory a good idea. And allowing GUI-less server should be more appropriately presented as “OK, we were wrong but we fixed it” rather than “Look what cool feature we have just added”.

As Henry Spencer once said:
“Those who do not understand Unix are condemned to reinvent it. Poorly”

The dark screen club


It happened few days ago for the first time: after opening the lid on my MacBook Pro, the machine woke up, but the screen stayed dark. Whatever I did, I just could see cursor and nothing underneath. I had to resort to unthinkable – reboot 😦

Some research showed this is known problem – which is from certain point of view good, because many people found hopefully many workarounds. The more information can be found here, here and here. Very helpfull was also this page.

There are speculations about some software that may be related to the problem. As matter of fact, I have installed after some time of not using it one of the suspects: iStat Pro dashboard widget.

What I have done to minimize chances of reoccurence:

– removed the iStat Pro and Polar Clock screen saver (which was also new install)
– switched off the setting ‘Automatically reduce the brightness of the display before sleep’
– started to switch off the bluetooth mouse before closing the lid (so that BT is off when sleeping)

I have also switched off the “safe sleep” mode which is not of much use as my notebook never stays unopened for longer that 12 hours :-).

So far, everything works OK. Let’s keep the fingers’ crossed …