Pure Fun

Browsing through my photo albums I came across this picture that we took in Namibia:

That was pure fun!

Reason for their joy probably was me almost drowning the car while crossing the river...

How to reset your TUMI TSA Lock

Tumi sells a solid looking number lock with their suitcases, TSA certified, for almost 23 euro.

33 years ago I was caught at school for opening the number lock of a bicycle (belonging to the rector). Here's how easy it is to reset the TUMI TSA lock without knowing the number combination.

Tumi's response: "I have forwarded your email to the appropriate department for their review."

Installing PostgreSQL on Mac OS X

Being still rather new to the Apple Mac, I googled the web for instructions on how to install PostgreSQL 9.1 on my Macbook Pro.

After a couple of hours, I almost gave up because all I could find were very complex installation instructions. I downloaded the package from http://www.enterprisedb.com/products-services-training/pgdownload.

Brilliant how easy this went. No instructions needed whatsoever, just click and go! Job well done.

Next, I downloaded the installer for PgAdmin here: http://www.postgresql.org/ftp/pgadmin3/release/v1.14.1/osx/

And voila. All is working :-)

One challenge left, how to make my old laptop (which is running as a VM on my Macbook) connect to the server I just created...

ID105 presentation from Lotusphere 2012

At Lotusphere 2012 in Orlando, I co-presented a session with Michael Dudding from IBM about the work we do together in competitive situations. You can find the presentation here:

Id105 fortify your ibm lotus notes and ibm lotus domino infrastructure against a competitive attack

View more presentations from waukema.

Visualizing 47,693 Notes users on 74,033 databases.

The absolute favorite of all DNA customers, this scatter plot that shows how 47,693 end users were using 74,033 Lotus Notes databases.

Every bubble is a database. Bubbles have colors, indicating the type of database. Bubbles have different diameters, indicating the distance number of users that showed activity on each database. (mail files tend to have only one user, hence the many small green bubbles). The horizontal and vertical axis represent network IO, caused by 7 days of activity from users on these databases. Both axes are logarithmic, so every gridline is a 10-fold increment in demand.

What make this particular case so interesting is the fact that most network load is caused by users connecting to Directory databases (names.nsf and directory catalogs). Deeper analysis revealed a misconfigured directory catalog, causing end users to replicate too many documents.

Tableau Software (desktop, version 7) was used to produce this visualization. Too bad they don't have a version for the Mac.