The ability of a system, network, or process, to handle growing amounts of work in a graceful manner or its ability to be enlarged to accommodate that growth.

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0
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1answer
413 views

Scalability problem (Tornado). Can't figure it out, holding up launch

Thanks guys, any ideas/insight are appreciated b/c this is driving me crazy. Problem: Only about 3 or 4 users can use the server simultaneously before app grinds to a halt. Currently we see massive ...
0
votes
1answer
82 views

Utilizing two servers (LAMP)

I currently have my web app on a single cloud server. Been doing this for a few months now and I have EVERYTHING on this instance (app, cron scripts, mysql, svn, dev environment, etc). The site is ...
2
votes
1answer
1k views

Setting up a Rails 2.3.x app on EC2 for easy scalability

I'm running a simple rails stack on a single dedicated machine. We're reaching our full capacity and have absolutely no setup for scaling, just one app on one machine. I did some research and came up ...
1
vote
2answers
256 views

Open source cloud computing with scalable virtual machines

I'm searching for open source software to create my own cloud computing environment, like Ubuntu UEC or Eucalyptus. What I need is that each virtual machine can use resources from multiple nodes ...
2
votes
2answers
1k views

How to load balance > C100K?

Suppose that a hypotetical webapp keeps one connections per user (eg: chat app using comet, long pooling, etc...). How can i load balance such thing to scale beyond the connection limit of a single ...
3
votes
1answer
450 views

Ideal server specs/software for mail, file, and database storage

I'm trying to figure out what the ideal set up would for a few servers. 1) Website 1) Mail server 1) Database server 1) file server In this given scenario, say there is a site that will offer each ...
10
votes
6answers
4k views

What is a typical method to scale out a software load balancer?

I often see web app architectures with a SLB / reverse-proxy in front of a bunch of app servers. What happens when the number of connections to the SLB requires too many resources for a single SLB to ...
0
votes
1answer
234 views

Approximately, how many writes can a EC2 large dedicated Mongo server handle?

Let's assume that it was only writes. Each "document" inserted is less than 140 characters. How many writes can this database handle?
0
votes
1answer
183 views

Can sql server scalable shared databases work with a vmware (ESX server) shared disc?

I've recently found out about sql server scalable shared database technology and I'd like to test it out in a vmware environment. Our production environment is SAN based but we don't have a test ...
3
votes
1answer
811 views

M-M or M-S replication of EBS volume across multiple EC2 instances

I would like to share EBS backed file system of size up to 20GB in 200K files across multiple EC2 instances. Master-master would be ideal, but I'd be happy with master-slave solution too. I know that ...
1
vote
2answers
148 views

Push sub-database to master-database?

Say, I have a big database globalclients which is very very big. Now, I divide this big database to 100 sub-databases, as: chinaclients japanclients koreaclients indiaclients brazilclients etc. ...
0
votes
1answer
330 views

Too Many/A Lot of Public SSH Keys

A new thing I have been tasked with trying/exploring is setting up a server that will essentially have 200 to 300 people ssh'ing into a single user to run a task. They might only need to do it once a ...
3
votes
2answers
3k views

What are the best strategies for scaling up my web application to be able to cope with a large volume of users?

I want to get some advice / best practices for how to go about developing a strategy for scaling up my a web application. I waffle on a bit here and show my limited knowledge but want to fill in my ...
1
vote
1answer
68 views

Is it a good idea to separate the Database and the website files in 2 shared hosting?

Do you think If I did separate the db and the files will make it performs better? and is this easy thing to do? What if I upgrade later on to 2 VPS as well, can I do the same thing without affecting ...
2
votes
2answers
111 views

web app reaching emailing limits - what is the next step up?

Recently i have been working on a popular web app that currently has around 70k members and a lot of traffic, i migrated the site to a new extra large EC2 instance and it seems to be a massive ...
1
vote
1answer
636 views

COM+/Desktop Heap errors in IIS affecting sites at random?

We have a Win2K3 server that is hosting 30+ sites. Each site is configured to have its own unique application pool -- so that we can manually recycle specific sites if needed and not kill sessions ...
0
votes
4answers
299 views

IMAP scalability

I am creating a system which allows members to email content to it and have it instantly and automatically parsed. I asked a question regarding using a custom SMTP server for intercepting mail. One ...
6
votes
1answer
1k views

IPSec software that can use multiple CPU cores

Can anyone recommend a good IPSec software that can use multiple CPU cores to achieve performance ~2Gbps on Linux dual-CPU quad-core E5620 Xeon setup (total 16HT cores)? I have tried OpenSwan and ...
4
votes
2answers
302 views

The CPU and memory is limited in the Cloud, So where is the scalability?

I don't understand cloud, the CPU is limited, Memory is also limited, where is the scalability? Isn't it just the same like VPS with more expensive cost for bandwidth? So what scaling advantage is ...
0
votes
2answers
110 views

Run untrusted program from apache

I have a problem to which I already have an implemented solution, but I'm not sure whether it's the best one. In the interests of not biasing any possible responses, I won't say how I've chosen to ...
1
vote
4answers
333 views

How should I host a site that could potentially get a short spike in traffic of 1000%+

This is a purely theoretical question, but what if I had a site that would normally only get a couple thousand hits a day, but for a few days each month that could shoot to several hundred thousand or ...
3
votes
1answer
763 views

Nginx vs Apache & mod_php for PHP and php+fpm vs fastcgi

It seems to be universally recommended to run Nginx as a reverse proxy in front of Apache but there seems to be a devision in opinion on whether Apache + mod_php or Nginx are better for serving ...
1
vote
2answers
243 views

How to theoretically prevent hardware failures in a collection of 10,000 servers?

From a book about warehouse-scale computers: Although it might be theoretically possible to prevent hardware failures in a collection of 10,000 servers, it would surely be extremely expensive. ...
0
votes
3answers
520 views

What Sort of Server Setup Am I Likely to Need? - School A/V streaming

My prior experience with servers has generally been limited to home file-sharing servers, low-traffic web-servers, and the like. This leaves me with the technical knowledge of how to set up a system, ...
8
votes
5answers
10k views

Optimize apache for 10K+ wordpress views a day on 2GB RAM E6500 CPU

I have a dedicated server with apache/php on ubuntu serving my Wordpress blog with about 10K+ pageviews a day. I have W3TC plug in installed with APC. But every now and then server stop responding or ...
3
votes
6answers
3k views

Scalable WordPress Host for High-Volume Site?

I need recommendations for a scalable web host for a high volume WordPress web site. For my purposes, high-volume might be 100K-500K visitors/hour. Might think towards a 1M/hour burst rate as a "high ...
6
votes
3answers
982 views

What are the typical methods used to scale up/out email storage servers?

What I've tried: I have two email storage architectures. Old and new. Old: courier-imapds on several (18+) 1TB-storage servers. If one of them show signs of running out of disk space, we migrate ...
1
vote
5answers
2k views

How many site visitors can my server handle? [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I have a website, and I want to host it on my own computer, but I'm wondering if it's good enough. The ...
1
vote
1answer
460 views

How to scale out image hosting/serving?

I asked this question on stackoverflow and it was suggested that I try it here: I'm building a website where users can upload photos and I'd also convert uploaded photos into thumbnails. Planning ...
3
votes
5answers
2k views

Apache on Windows in production environment? Why not?

"Everyone" know that Apache is for Linux/Unix and on Windows IIS is the way to go. However, I'm not a pro at Linux and it would be an enormous relief for me to use just the same setup in the ...
0
votes
2answers
2k views

best practice with memcache/php - multi memcache nodes

So I am working on a web app - that has to be built for scalability. It stores frequent MySQL querys into the cache. I have pretty much everything built and ready to go - but I am concerned on best ...
1
vote
3answers
216 views

What is the best way to seed 20.000+ torrents [closed]

What is the best (most stable) way to seed 20.000+ torrents on 1 server?
3
votes
2answers
1k views

Mongodb: What does webscale means?

Mongodb is known to be webscale. I tried looking on the internet about what webscale actually means but ends with no luck. So, what does webscale really means? And how is it any different than any ...
0
votes
2answers
372 views

Windows Server 2008 Web vs Standard

Please tell me what choice will be best between Windows Server 2008 R2 Web edition and Windows Server 2008 R2 Standard edition for NoSQLDatabase/BackendComputing scaling farm? I am pretty sure that ...
0
votes
2answers
626 views

Windows Server 2008 Web vs Standard [duplicate]

Possible Duplicate: Windows Server 2008 Web vs Standard Please tell me what choice will be best between Windows Server 2008 R2 Web edition and Windows Server 2008 R2 Standard edition for ...
1
vote
3answers
1k views

Scalable database architecture for heavy read and heavy write?

I am developing a web application which will require scaling to multiple servers. I'll need multiple web servers running my application code, and there will be heavy reads and heavy writes to the ...
1
vote
2answers
1k views

Does IIS 7/7.5 304 (Not Modified) involve disk IO?

I am wondering how does IIS (7/7.5) work in terms of 304 ((Not Modified) response code. For example when an image is cached on client side (i.e. a web browser) with the Last-Modified HTTP header set, ...
1
vote
3answers
176 views

How to make PHP more scalable on Unix Apache

I'm looking for free/low cost ways to make PHP running on our Unix Solaris servers (under Apache) more scalable and reliable. Do you recommend the free version of the Zend Server? Are there other ...
0
votes
2answers
463 views

https scalability for concurrent connections

I am a building a site right now that has a lot of chat messages and social communication moving between users in both real-time and accessed through archives (text material, not images). I want to ...
1
vote
2answers
378 views

How to configure reverse proxy/loadbalancer for custom routing

Suppose I have 3 webservers behind a reverse proxy/loadbalancer. Currently I use Apache 2 but don't mind switching. Those webservers are not equal. They have different sets of local data meaning that ...
0
votes
2answers
213 views

Cherokee Web Server and large files

Is Cherokee Web Server (several servers behind a load balancer) suitable for delivering large files (in the range of 20 - 500 MB) to a big number of clients (several thousands) ?
0
votes
2answers
134 views

What is the best high-performance solution for server side

We are building the server side of some gaming platform where a great load of mobile devices (thousands, if not tens of thousands) connect to a server, send some small information each second (let's ...
2
votes
5answers
151 views

Will having 3 servers + load balancer help in my situation?

I want to upgrade my server because of the high mysql loads causing slowness + whenever there were backup processes running on the DB, the DB would be inaccessible, so wanted some solution. My current ...
3
votes
2answers
3k views

How to set up multiple web and database servers?

My websites have been growing in terms of traffic and the load on the mysql has been increasing. I wanted a solution that would help deal with the increased load on mysql (all queries already ...
0
votes
1answer
159 views

Scaling horizontally

I know next to nothing about having more than one server work together. Right now I've been playing around with the cloud servers offering from rackspace. All the time when people talk about these ...
-2
votes
3answers
858 views

How much server capacity by thousand of registered users one must provide for a social networking site? [closed]

I am involved in the worldwide launch of a social networking site. For how many server capacity we must plan ? what are the average ratios per thousand registered users ? what are the assumptions ...
2
votes
2answers
170 views

Best way to prepare for one time digg-like effect

I have a web site which will be featured in a place which will send a large peak of one-time traffic in a couple of weeks. The server hosting the website also hosts the control panel my customers ...
1
vote
1answer
141 views

Are there any pitfalls with having multiple MySQL databases on 1 server node?

I want to prepare my database for sharding in the future. But right now I only need 1 node. What I'd like to do is to shard the database into virtual shards, say 12 shards, and put all of them onto ...
0
votes
3answers
7k views

How many sessions can you cram into a terminal server?

I have a customer who plans to deploy an app to one server and have 100 or so users remote desktop into that server. It's currently planned at 4GB RAM. Obviously there are problems to explain with ...
2
votes
1answer
429 views

How to scale out by elvolving from database partitions to sharding?

Say I have a MySQL table: CREATE TABLE tweets ( tweet_id INT NOT NULL AUTO_INCREMENT, author_id INT NOT NULL, text CHAR(140) NOT NULL, PRIMARY KEY (tweet_id) ) PARTITION BY HASH(tweet_id) PARTITIONS ...