If you ever done some MySQL profiling you probably used Mytop.

When i transferred to my new job in November, my job was to develop web services and applications using Ajax and other RIA technologies, but all development was done using
Mac computers. Coming from the PC world it was little strange experence in first couple of days and then i get used to it, altrough i still sometimes try to save document using ctrl+s.

Mytop require perl to work, and Mac OS X 10.5.5 comes with the perl already installed, but you will probably need DBD::mysql module to run mytop.

Also, standard XAMPP install dir is not in PATH, so you should add it to /etc/paths
here is how my /etc/paths file looks now:

/usr/bin
/bin
/usr/sbin
/sbin
/usr/local/bin
/Applications/xampp/xamppfiles/bin/


Now we can start install procedure:

1)Create a mysql directory in /usr/local:

sudo mkdir /usr/local/mysql

2)Create symlinks to the mysql

sudo ln -s /Applications/xampp/xamppfiles/lib/mysql/ lib

For the next step you should have xampp developer package
http://www.apachefriends.org/en/xampp-macosx.html

sudo ln -s /Applications/xampp/xamppfiles/include include

sudo ln -s /Applications/xampp/xamppfiles/var/mysql/mysql.sock /tmp/mysql.sock

3) Now install DBD::mysql module (if you don't have one)

perl -MCPAN -e 'install DBD::mysql'

4) Now extract and install mytop


tar -zxvf mytop-.tar.gz
cd mytop-
perl Makefile.PL
make
sudo make install


and that's it..

you should be able to run mytop now.

Viewed 47786 times by 19030 viewers

map - filter - reduce in Javascript using prototype.js

I wrote little tutorial on functional programming techniques using javascript and prototype.

view demo

Viewed 69123 times by 26885 viewers

On jul 17. last.fm released new version of their interface to general audience.
It looks like there are moving from music oriented service to social network kinda service.

Comments(shoutbox), Recent activity list (new?) and friends are now almost main feature of the site. Sure, charts are still there, but now it shows only 15 entries by default in top artists and top tracks section.

Also, ajax tabs are charts are really useful (prototype ftw!),and I like that they did not go wild with ajax features and that kept thing nice and minimalistic.

Only thing i hated from on first sight is the player, damn what is with that brushed metal texture?
It looks like some ancient photoshop tutorial from 5-6 years ago
Old player was like 10 times better. :/

Don't get me wrong, design it self is pretty good, and i even like the but there is an obvious intention to make last.fm more social, and i don't know is that good thing or bad, i always have doubts in radical changes like this one.
For one you will always get a ton of angry users (scroll down) when you make this kind of changes. Also i think they should include dark theme like in old version, i didn't use it but i know many people that did.

But anyway, there is nothing else that we can do, but to (try to) enjoy the brand new last.fm

Viewed 78639 times by 29216 viewers

Here is an interesting find : Busby SEO Challenge.

Friend of mine is participating in challenge where you are competing with other participants on who will score no.1 position on Google for "Busby SEO Challenge" phrase, and award is quite nice too - $5000

Viewed 88171 times by 33043 viewers

Getfirebug.com is currently unavailable from Europe.
It seams that FF3 is not compatible with latest stable version of firebug (1.0) but you must use some of the beta versions.

At least, it seams that firebug has a lot of users, ant that certainly is a good thing.

Viewed 83604 times by 29984 viewers

There is a lot of buzz around Erlang these days, and there is a reason to it - Erlang has native solutions for most common problem of todays large web apps:

-Erlang is distributed
-Thus, Erlang is easy to scale
-Erlang comes with built in mnesia database, which can also be distributed
(and it even comes with transaction support)

Erlang is process based language, and programmers from the world of sequential languages must change they mind set rapidly in order to fully understand and take advantage of Erlang.

On the other hand, Erlang is fairly simple language with just a few built in functions an it could take you just a few days to get a grip on it.

and if you dont trust me, you should probably trust guys at Google. Here is one of the topics form this years Google's scalability conference in Seattle:

Scalable Wikipedia with Erlang by Thorsten Schuett, Zuse Institute Berlin

Abstract:

Global online services at Amazon, eBay, Myspace, YouTube, or Google serve millions of customers with tens of thousands of servers located throughout the world. At this scale, components fail continuously and it is difficult to maintain a consistent state while hiding failures from the application.

Peer-to-peer protocols provide availability by replicating services among peers, but they are mostly limited to write-once/read-many data sharing. To extend them beyond the typical file sharing, the support of fast transactions on distributed hash tables (DHTs) is an important yet missing feature.

We will present a distributed key/value store based on a DHT that supports consistent writes. Our system comprises three layers:

* a DHT layer for scalable, reliable access to replicated data,
* a transaction layer to ensure data consistency in the face of concurrent write operations,
* an application layer with an extremely high access rate.

For the application layer, we selected a distributed, scalable Wiki with full transaction support. We will show that our Wiki outperforms the public Wikipedia in terms of served page requests per second and we will discuss how the development of the distributed code benefited from the use of Erlang.

Also Apache built their new document based database called Couch DB on top of Erlang, and Facebook implemented their online chat system in Erlang, so if you think about it, there must be something good about that language.
So why not learn it?

Viewed 96596 times by 32263 viewers