Use cache-invalidation for questions related to purging content from a cache based on a state change in the cached object or a canonical object that it shadows
I am trying to invalidate CloudFront objects in C#/.NET and gettign the following exception:
Your request contains one or more invalid invalidation paths.
My Function:
public bool InvalidateFiles(string[] arrayofpaths)
{
for (int i = 0; i <…
I need to implement pull to refresh in an iOS app, and I came across this thing, in where I don't know how to approach the problem with the best practices of DDD.
The presentation layer has an event to refresh a list, this needs to update the…
A polymorphic inline cache(PIC) works by caching the actual method by the type of the object, in order to avoid the expensive lookup procedures (usually a hashtable lookup).
How does one handle the type comparison if the type objects are mutable…
I have a program with the general structure shown below. Basically, I have a vector of objects. Each object has member vectors, and one of those is a vector of structs that contain more vectors. By multithreading, the objects are operated on in…
I am using s3 bucket as origin in cloudfront to cache and host my reactjs website.
After every deployment on s3 i want to invalidate the cache of my cloudfront distribution so that the user can get the latest build deployed..
Moreover, while reading…
Introduction
I am building a caching system where each node of the cache may call any number of SQL queries from a predefined, finite, set of SQL queries with 0-n parameters.
Based on the result of those queries, the node does a rather slow…
While learning about GraphQL and Apollo, I went through this tutorial series.
It shows how to create an application, that has:
A channel list view (/)
Shows all channels
Allows to open up channel detail view
Allows to create new channel
A…
Shiro provides cache feature but in my case, I'm using dynamic roles and permissions for the users. I need to expire the cache for a particular user if any so that changes in permissions immediately affect to user.
There is a method in Realm, but…
I would like to invalidate a folder (and the subfolders) in the s3 bucket in node js.
This is the script I am using at the moment:
var clearCloudfrontCache = function() {
console.log("clearCloudfrontCache function started");
var cloudfront =…
I'm trying to do a hard thing: implementing cache invalidation with Symfony 4.4.13 using FOSHttpCacheBundle 2.9.0 and built-in Symfony reverse proxy.
Unfortunately, I can't use other caching solution (like Varnish or Nginx) because my hosting…
I want to invalidate some locally generated cache every time file is modified.
Invalidation would happen on running manually some command-line tool (no live watch required)
My approach would be to:
First generate cache and store file modification…
A really common pattern that I need in multi instance web applications is invalidating MemoryCaches over all instances - and waiting for a confirmation that this has been done. (Because a user might otherwise after a refresh suddenly see old data on…
I have a DAL which is used to persist a large number of time-series measurements into a RDBMS database (MS SQL Server). There is also a web app which connects to this database and displays trends online (usually charts several months of data, with,…
Looking for implementation which:
1) checks for the key if the value is changed.
2) if yes invaludates the key.
3) sets the key with new value from the Data Tier(i.e. Original Source)
