Tagged articles - REDIS

Some time ago I wrote an article about Reloading the cache automatically once expired is ASP.NET MVC. The piece of code represented in that article is build on top of .NET Framework 4.7.2...read more

In memory caching is not a bullet proof way of caching data in an application, especially if this application is distributed. The lack of synchronization between nodes can cause you application to misbehave showing wrong data or even throwing exceptions and crashing. This is one of the main reasons why distributed caching is the best way of doing the caching in your web application. But not all applications you might be developing need to run as distributed on multiple machines...read more

Even before popularity of micro service approach, for even monolithic applications you needed to have health-checks (Google Compute Engine) or health-probes (Microsoft Azure) for load balancing. Basically in load balancing scenario, these endpoints are used to tell load balancer whether instance can handle requests or not. Since handling of requests may consider several components, these endpoints either return 200 OK HTTP response or any other response like 500 Internal Server Error with optional payload message describing the issue and each component status. ...read more

Saving an object to distributed cache store in .NET Core requires your object to be serialized to byte array in order for SetAsync method on Microsoft.Extensions.Caching.Distributed.IDistributedCache interface implemented instance to save your object to the injected cache store instance. This means that what ever instance you have, you need to serialize it first to byte array. Similar, just reversed process applies for the process of reading an object from the distributed cache store. ...read more

Recently I needed to set redis key if it is not present with specific expiry time to use it as some logical flag. I knew tat you can use SETNX command for this but did not have any info how to set the expiry time. After some time going through redis documentation and articles found online I found a SET method overload for the redis-cli. ...read more

Using REDIS for caching values for increasing application performance can be quite beneficial and can increase performance and scalability of your application. Although REDIS allows quite large text files, up to 512MB which is something you most likely will not reach if you are storing for example JOSN data, there will be a significant network transfer over the wire for putting and pulling this value in and out...read more