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Messaging

Scaling Hangfire: Process More Jobs Concurrently

As you start enqueuing more background jobs with Hangfire, you might need to increase the number of Consumers that can process jobs. Scaling Hangfire can be done in a couple of ways that I’ll explain in this post, along with one tip on what to be aware of when starting to scale out. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Producers & Consumers First, let’s clear up how Hangfire works with producers and consumers. A Hangfire producer is creating background… Read More »Scaling Hangfire: Process More Jobs Concurrently

Message Queue Overload from High Processing Latency

Message Queue Overload can occur when consumers cannot keep up with the work being created by producers. This can happen unexpectedly when processing latency increases dramatically. Here’s one spot to look out for when using network calls such as HTTP when processing messages. Without handling them correctly with timeouts, you can increase processing latency which will overload a message queue. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Message Queue Overload What exactly do I mean by overloading a message queue?… Read More »Message Queue Overload from High Processing Latency

Using Hangfire and MediatR as a Message Dispatcher

Two popular libraries in Hangfire and MediatR can be used together to create a pretty powerful out-of-process messaging dispatcher. I’ve covered this a bit many years ago but I figured I’d give it a refresh since it’s a bit easier in the world of ASP.NET Core. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Hangfire and MediatR Bridge/Wrapper The first thing you need to do is create a bridge/wrapper around MediatR. At first this may seem completely pointless, but it has… Read More »Using Hangfire and MediatR as a Message Dispatcher