Top "Scalability" questions

Scalability is the ability of a system, network, or process, to handle growing amount of work in a capable manner or its ability to be enlarged to accommodate that growth.

How do social networking websites compute friend updates?

Social networking website probably maintain tables for users, friends and events... How do they use these tables to compute friends …

scalability social-networking
How many concurrent users can a web app built in Meteor.js handle?

We are building a web app which will be used during a contest to vote contestants and display real-time vote …

javascript meteor scalability
Creating a realtime push notification system for desktop/mobile/web apps using kafka as message broker

I have a use case where there needs to be a real-time communication between servers and clients following a pub/…

rabbitmq real-time scalability apache-kafka publish-subscribe
How does one autoscale web dynos on Heroku?

With Heroku, how does one AUTO scale up in terms of web dynos when it is needed? Say we get …

ruby-on-rails-3 heroku scalability
How to create an Amazon VPC using AWS CloudFormation?

I am currently using AWS CloudFormation for my application. Right now I am able to auto scale the instances. Now, …

amazon-ec2 amazon-web-services scalability vpc amazon-cloudformation
Ideas for scaling chat in AWS?

I'm trying to come up with the best solution for scaling a chat service in AWS. I've come up with …

amazon-web-services redis real-time scalability amazon-sqs
How to scale Lambda when /tmp is reused?

I have a lambda function that reads from DynamoDB and creates a large file (~500M) in /tmp that finally uploaded …

amazon-web-services scalability aws-lambda
Java's Mahout equivalent in Python

Java based Mahout's goal is to build scalable machine learning libraries. Are there any equivalent libraries in Python ?

java python scalability machine-learning mahout
Conflict-free Replicated Data Types (CRDT) vs Paxos or Raft

When is it a good idea to use something like CRDT instead of paxos or raft?

scalability distributed paxos raft crdt
Concatenate one field after GROUP BY

This question have been asked many times in SO but none of the answers is satisfying to my situation. Question 1 …

sql sql-server group-by scalability sql-server-group-concat