scalr-discuss

scalr-discuss | Google Groups

DBIx::Class::Storage::DBI::Replicated - BETA Replicated database support

DBIx::Class::Storage::DBI::Replicated - BETA Replicated database support - search.cpan.org

DESCRIPTION ^

DBD::Gofer is a DBI database driver that forwards requests to another DBI driver, usually in a seperate process, often on a separate machine. It tries to be as transparent as possible so it appears that you are using the remote driver directly.

DBD::Gofer is very similar to DBD::Proxy. The major difference is that with DBD::Gofer no state is maintained on the remote end. That means every request contains all the information needed to create the required state. (So, for example, every request includes the DSN to connect to.) Each request can be sent to any available server. The server executes the request and returns a single response that includes all the data.

This is very similar to the way http works as a stateless protocol for the web. Each request from your web browser can be handled by a different web server process.
Use Cases

This may seem like pointless overhead but there are situations where this is a very good thing. Let's consider a specific case.

Imagine using DBD::Gofer with an http transport. Your application calls connect(), prepare("select * from table where foo=?"), bind_param(), and execute(). At this point DBD::Gofer builds a request containing all the information about the method calls. It then uses the httpd transport to send that request to an apache web server.

This 'dbi execute' web server executes the request (using DBI::Gofer::Execute and related modules) and builds a response that contains all the rows of data, if the statement returned any, along with all the attributes that describe the results, such as $sth->{NAME}. This response is sent back to DBD::Gofer which unpacks it and presents it to the application as if it had executed the statement itself.

DBD::Gofer - A stateless-proxy driver for communicating with a remote DBI - search.cpan.org

Marry Our Daughter is an introduction service assisting those following the Biblical tradition of arranging marriages for their daughters.

Those who wish to list their Daughters with our site should click on SIGN UP OUR DAUGHTER on our main page for a form to fill out.

Those who wish to propose to a specific Daughter should click on the PROPOSE button on the Daughter’s INFO CARD.

Its so nice to see good Christian peoples sticking to tradition.

Marry Our Daughter - OUR SERVICE

The Georgia Tech Information Security Center (GTISC) will host the 2008 Emerging Cyber Security Threats Summit on Wednesday, October 15, 2008 at 10:00 a.m. at the Georgia Tech Ferst Center for the Arts.

The GTISC Emerging Cyber Security Threats Summit convenes prominent thought leaders from the information technology and security fields for a revealing look at emerging threats and the challenges that need to be overcome to safeguard users, businesses and critical infrastructure. The participants in the 2008 GTISC Summit include:

Keynote:
Lt. General Robert J. Elder, Jr.
Commander, Eighth United States Air Force

Moderator:
Thomas E. Noonan
Co-Founder and former Chief Executive Officer, Internet Security Systems.

Panelists:
Mischel Kwon, Director of U.S. CERT, Department of Homeland Security
Dr. Wenke Lee, Professor, College of Computing at Georgia Tech
Morris Moore, Vice President of Security, Motorola
Sam Phillips, Senior Vice President of Information Security and Business Continuity, Bank of America
Jon Ramsey, Chief Technology Officer, SecureWorks
Dr. Jim Ransome, Senior Director, Secure Unified Wireless and Mobility Solutions & Corporate Security Programs and Global Government Solutions, Cisco Systems Inc.
Heath Thompson, Director, Product Development, IBM Internet Security Systems

Cool thing going on tomorrow at 10AM at Tech.

Georgia Tech Information Security Center (GTISC) - 2008 Emerging Cyber Security Threats Summit on Wednesday, October 15

I generally avoid blog posts that are less than a million words, but today you are in luck; I am just going to share two shell aliases that I find quite helpful for Catalyst development:

alias cs="perl script/*_server.pl -d"
alias carpcs="perl -MCarp::Always script/*_server.pl -d"

cs will start the Catalyst server for the app in the current directory. carpcs will make all warnings/dies give a full backtrace.

Maybe a little hackish, but very helpful. I use bash, btw.

Catalyst server aliases

#

This FAQ is aimed at Linux novices.
# People always wonder how much swap they should put on install, or after installing without a clue think "oh my god", have I put enough swap? Maybe I should just reinstall with more swap?
# This FAQ will tell you how much swap you need and how to add more swap after installation.
# You will be given very simple answers (so that you do not have to lose too much time reading this FAQ) and some explanations that may help you make your own opinion.

Swap Partition FAQ - Community Ubuntu Documentation

“Build the right platform, everything else will come,” says Frank Mashraqi, Director of Business Operations & Technical Strategy at Fotolog. By focusing on scalability from the beginning, startups will set themselves up for success in the long run and will avert future growth issues.

What should you focus on?
• Focus on Horizontal scalability, as vertical scalability can be very expensive.
• Go Asynchronous—Synchronous processes are costly.
• Architect so you don’t have to re-architect—you won’t ever have to come back.
• Consistency, availability, and Partition-tolerance. Choose the two that matter most to you.
• Measure utilization first—don’t worry about performance.

Scalability for Start-ups: How to Grow Up without Blowing Up

Stop me if you've heard this one before: Adobe has confirmed that it's developing a version of Flash for the iPhone, and it's "a certainty" that it will be included in MobileSafari, according to Paul Boutin of Valleywag. Color me skeptical.

Paul Betlem (this story is replete with Pauls, it appears) from Adobe stopped short of saying it will be included on the iPhone, but instead said the ball was in Apple's court. If Apple approves, Adobe will have the player available shortly.

We knew Adobe was working hard on a version of Flash Player for the iPhone and iPod touch. The "closed system" of MobileSafari was making it difficult for them to build a plug-in for a browser that doesn't officially support plug-ins. Having Apple's buy-in on the project is an absolute requirement.

It remains to be seen how lean Flash Player will get in order to provide good video playback (for example) without draining the battery in 30 seconds flat. Will Adobe favor performance over economy? Or vice versa?

Flash on its way for the iPhone (again)? - The Unofficial Apple Weblog (TUAW)

Tannerite Binary Exploding Target Company

WTF?

Tannerite Exploding Targets from Tannerite Explosives Corporation - Manufacturer of High Explosives, Low Explosives and Fireworks