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2
votes
4answers
883 views

How to scale down for low memory server?

I'm having problem with one of my Rails applications, that runs on 365MB VPS, which seems to be not very much. When there are more than 3-5 users at the same time it runs out of memory and starts to ...
0
votes
5answers
6k views

How many simultaneous requests would you expect a webserver to handle

I know there is no straight answer to this question - depends on specs etc. But what is the order of magnitude of simultaneous requests you'd expect a server to handle? Currently, our server starts to ...
1
vote
2answers
5k views

How to use a distributed PostgreSQL database on a web site?

I want to host a web site, the back end will be a PostgreSQL database server. I would like to have multiple web servers, in different data centers for redundancy. I would then round robin DNS each web ...
3
votes
2answers
243 views

Virtualization as a way for scaling

I'm asking this question to find out what are you best practices to prepare your system for scaling, I know that basically you don't have to over optimized before really having to, and that's the best ...
1
vote
2answers
401 views

Troubleshooting/Scaling massive load issues in a LAMP stack?

We're running a LAMP stack (Perl, MySQL) and have recently experienced roughly a tripling of our database load due to increased usage and shifting user behavior... which has overloaded our system. ...
1
vote
4answers
587 views

Cheap scaling techniques using open-source software

What are your favourite techniques to improve scalability of highly websites? I have compiled the following list for techniques I've used using open-source tools: 1.) Caching full-page ...
3
votes
11answers
4k views

Active Directory for web authentication: scale to 1M users?

I'm interested in how well Active Directory would fare as the authentication backend for a website, scaled for ~1 million users. Do you have experience with AD in web environments of this scale, and ...
4
votes
3answers
6k views

Suggestions on large scale web applications architecture?

It's a big question:) We are running a website with LAMP that is not big, 5 web servers with LVS load balancing, 3 MySQL servers with replications and separation of reading and writing, and we use ...
2
votes
4answers
612 views

What should I do to scale OUT a Sql2008 database?

I'm about to scale UP our sql2008 database. Simple. But I might need to scale OUT our sql databases. For a simple scale out situation (ie distributing the processing load), are there some good ...
4
votes
5answers
2k views

HAProxy and “sharding”

I am cross posting this from stack overflow since it was suggested I might get a better answer here ... I was wondering if anyone has used HAProxy for sharding. Specifically, I would like to be able ...
8
votes
10answers
21k views

Where to purchase a server capable of 512GB of RAM? [closed]

Where can I purchase a single server capable of 512 GB, yes GB, of RAM? The most I've seen is 256 GB (32 DIMM x 8 GB per stick)
5
votes
5answers
3k views

When is the right time to add a separate database server, add more web servers?

Usually web projects start small, everything is on the one server. But if site becomes popular one server won't be enough. So, since I don't have any experience in this, I'd like to get an idea of: 1. ...
0
votes
1answer
217 views

how do i enable Asynch Module/Http on IIS7

I am trying to enable WCF to scale out using Asycn pattern, it is a configuration setting, to enable asynch processing, but i can't find out where this is. I think it was in .net 3.5 SP1 feature, but ...
66
votes
8answers
141k views

What limits the maximum number of connections on a Linux server?

What kernel parameter or other settings control the maximum number of TCP sockets that can be open on a Linux server? What are the tradeoffs of allowing more connections? I noticed while load testing ...
24
votes
5answers
41k views

How many requests should my webserver be able to handle?

Not going into specifics on the specs since I know there is no real answer for this. But I've been doing load testing today with the ab command in apache. And got to the number of 70 requests per ...
4
votes
4answers
266 views

Multiple web servers sharing a db server

I am contemplating migrating to mosso to have several cheap app servers. The goal is to have a dedicated database server, however, does it make sense to have one database server that hosts the ...
16
votes
4answers
7k views

Which database server scales better: PostgreSQL or MySQL?

I'm working on a website that could eventually have a very large database. The website will be an art community not until deviantART. I'll be running a lot of queries for analyzing how the site is ...