All Questions
25 questions
1vote
1answer
57views
Effectively invalidating multiple entries from one composed key
Context I m building a dashboard application gathering data from a Rest API This Rest API can be requested by client applications others than the dashboard to get data That data is then aggregated ...
- 1,561
1vote
1answer
128views
Non blocking algorithm for invalidating and reloading cache in concurrent environment using Redis (with Redisson)
I'm trying to come up with a peace of code that would fetch centralised cache shared across multiple threads/app instances. Callers might come in swarms. The data is a large set, reads during ...
2votes
3answers
861views
How to synchronize cache writes in a distributed system?
I am looking for a complete pattern implementing cache-aside when used in a distributed system across multiple nodes read/writing from/to cache. Specificly how to avoid making multiple requests to db ...
- 145
7votes
1answer
9kviews
Best way to store quite large JSON objects?
I'm building an app where I need access to quite large reports about different publicly accessible URLs, JSON objects about 200kb to 500kB in size. Each user would generate hundreds of these reports ...
- 171
0votes
2answers
5kviews
Simple Java Spring Boot Cache for multi-container system
I have a requirement to cache some static data as it is being consumed by our system. There is a static API that gives a map of records and we are fetching the corresponding record based on request. ...
-1votes
2answers
394views
Should I make all my business logic depend on the data that comes from the cache?
One of my web services hits a few hundred thousand visits per day where most of the operations are CRUD and we are thinking to get a cache sitting in front of our SQL database. I have had implemented ...
- 107
3votes
1answer
2kviews
Best strategy to flush Redis cache used in a distributed environment
Current setup: We follow the cache-first strategy right now. Always fetch from the cache first. If absent in cache, fetch from DB and update the cache. Cache TTL is 30 min. After this, the cache-key ...
1vote
3answers
4kviews
Redis write-through cache vs write-behind cache (message queue?)
I have a simple use case: Newsfeeds aggregated based on posts that are linked to geopoints Users can comment on feed posts Users can like feed posts and comments I'm certain that Redis as a cache ...
- 185
7votes
3answers
2kviews
Best way to reduce database writes?
I couldn't find a similar enough thread, so i'm making a new one. My question is about reducing database writes. Context is that I have an application which increments a number in a database every ...
- 251
-1votes
1answer
123views
Design review for a Cache aside system
I am maintaining a system where a list of string ids are stored against a container (using the term here as a generic entity) object. The database used is MySQL and the table structure looks like this....
1vote
2answers
807views
How do I decide an initial in-memory cache size given my DB size and expected load throughput?
(Purely for learning purposes) Say the DB contains 1 billion rows with 200 bytes per row = 200 GB of data. The traffic at peak is 1000 requests/s, with each request asking for one DB row. What cache ...
0votes
1answer
779views
Caching or in-memory table in Azure for performance
I am building an Angular web application that retrieves part of its data from a Azure SQL Database table via APIs developed in Azure Functions (with Azure API Management at the API Gateway). The data ...
1vote
0answers
228views
Architect Java Hashmap Hierarchy to its equivalent in Redis Cache?
I have the following Job class representing runs of a job. I have a list of start and end times in Job class because the same Job can be rerun. public class Job { private final List<...
- 119
1vote
1answer
152views
Uncertain of cache solutions for CAD models
I am running a personal project of offering 3D model generation as a service (in this case CAD model). Since most of the generation of 3D models take a long time, I thought about using cache to ...
0votes
0answers
1kviews
How to cache timestamp based key values with a distributed cache?
I have a dataset in a key value store (similar to Cassandra). The data model is - Key - ServiceName / timestamp_in_milliseconds value - operation In the write side I get some operations for a service ...
- 101
