Clik here to view.
Why should one use amazon-elb?
Amazon-elb is a scalability solution that works like a proxy to several instances of my amazon ec2 servers. I wonder if it would’nt be more effective to have a roundrobin DNS to resolve my name into a...
View ArticleClik here to view.
Scalable Web Application Hardware Topology Best Practice
I’m working with an existing web application developed in Ruby with a MySQL back-end, but I think the generic hardware topology question will apply to a wide variety of server architectures. I’m...
View ArticleClik here to view.
What is the reason for scaling Amazon EC2 by instance count rather than...
We are looking into moving our website to Amazon EC2. The basic idea behind Amazon’s cloud seems to be: “Need more RAM? You got it. Hard disk? Sure, here you go.” Etc. But Amazon seems to be pushing...
View ArticleClik here to view.
Unable to add the environmental variables and run “as-cmd”
I am running micro instance, now need to horizontally scale. I mean I am experimenting with a micro instance. I followed the instructions which is given in this video, but when I run as-cmd I get an...
View ArticleClik here to view.
Scalable way to add users in Postfix without creating new unix/linux accounts?
What is the most scalable way to add new users in postfix? I don’t necessarily want to create a new user in /etc/shadow just for email. I know I can use aliases but this does not solve the issue of...
View ArticleClik here to view.
What would cause Memcached to Hang for 2+ seconds?
I’m going nuts trying to scale memcached. From their site: Memcached operations are almost all O(1). Connecting to it and issuing a get or stat command should never lag. If connecting lags, you may be...
View ArticleClik here to view.
Video Uploading on Amazon instances?
I am having real problems trying to wrap my head around my problem. I have decided on the middle and end solution to my problem but I can’t seem to work out the the beginning of it. So as a bit of a...
View ArticleClik here to view.
nagios automation in big scale
I would like to know if you have an experience or any idea about how to set up nagios in big scale. Previously we used nagios and nagiosql for manual settings, it was pretty comfortable for few...
View ArticleClik here to view.
Risks of Network Partitioning When a Split Brain Creates a Security Flaw
I’m looking to create a high-availability, scalable networking solution by using a distributed system of data. A node here, describes a network that has control over one copy of the data. These nodes...
View ArticleClik here to view.
Using NFS for scalable PHP/MySQL web application
Here’s the situation: I have a PHP/MySQL web application that accepts user uploads (pdf files). From these pdf files’ pages a preview image is made on the fly and presented to the web app’s users....
View Article
