Questions tagged [aws]
AWS refers to Amazon Web Services.
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Designing a Kafka consumer that gets a high throughput of "redundant" events
Context:
We have 2 services - a user-facing API server and a background processing Kafka worker.
Both of these are hosted on AWS EKS, and we use AWS MSK for Kafka.
The job of the API server is to ...
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Most efficient way to maintain versioned business rules files for an Amazon ECS service?
I have an Amazon ECS service that relies on configuration files that contain business rules. The business rules are changed periodically by non-programmers. Total size of the rules files is ...
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Is it a good idea to serve a Single Page Application as a static site?
I've built a small single-page web application in React and seen that it's possible to serve the app as a static site on something like S3.
Previously, I considered using Nginx, but as this is lower ...
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Looking for patterns for instantaneous data consistency for DB transactions that span multiple schemas in a Aurora postgres instance
We are currently developing a product in the AWS environment that requires instantaneous data consistency for DB transactions that span multiple schemas in a Aurora postgres instance. Each schema will ...
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Using Fargate (serverless compute) to replace leadership election
I currently have a solution that requires leadership election for HA. It processes files as they arrive in an SFTP server, and Subscribe to an Active MQ feed; and therefore we don't want multiple ...
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Creating associated resources before creating the main one in a REST setting
I'm not sure how common of a scenario this is, but what are some approaches to creating associated entities before you have the actual main entity they're supposed to be linked to? (basically having ...
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Quiz Site Software Architecture Question
I am currently writing an application that is going to be an adaptive quiz-like site for studying. The idea is a user is studying some topic and they are given questions on the site and enter their ...
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AWS and cron job: improve logging, monitoring and concurrence
In my company, we use a separate cron server to run mission-critical background jobs that run on a single ec2 instance: the whole platform is then vulnerable to anything going wrong on this instance.
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Architecture for EOD (end of day) stock exchange prices
I need to work out the architecture for a NASDAQ frontend charting application (a desktop app in .Net). Note that this is NOT for real-time quotes.
NASDAQ provides an api that gives historical pricing,...
- 117
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Fine-grained access control to folders in S3 buckets with AWS Cognito
I have a private S3 Bucket that contains a lot of folders (currently 1000 folders). The amount of folders changes (new ones are added, old ones deleted). Every customer has to register and log in to ...
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Transactionally update a set of files in s3
I have a bucket with several csv files at differing paths. The problem is that I want to update these csv files transactionally. The s3 bucket should represent the "latest" consistent set of ...
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AWS multiple SQS queues on one bucket without fanout
I am coming into a project that uses an Amazon S3 Bucket for a process.
For my application, I need to know (within a reasonable time - order of a few minutes, at most) whether a new file has beeen ...
- 161
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How do I avoid reading from S3 every time the user updates a filter on the webpage?
I am building a web application where a user logs in, and uploads a CSV file with employee data to S3.
This is an example of the format of the file.
id
name
country
age
3243
John Doe
USA
48
Using ...
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In an event-driven system, what are the best practices around the number of events and size/atomicity?
If you can have one event with multiple "things to process" or one event per thing to process, what is considered the best practice? Bearing in mind, the former option may involve persisting ...
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Moving Transaction Logic to Middle Layer: Pros and Cons
We have an event booking system that allows patrons to add themselves to a waiting list if an event is fully booked. When somebody cancels, the system moves the first person from the waitlist into a ...
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