Tracking hangfire background jobs with app insights

user_4333033 0
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I have set up app insights in Asp.net core application. All my web api requests are tracked on app insights and if I have any failures I can simply find them in Failures section.

app insights

However, I have also Hangfire background jobs running and if they are failing I can't find them on app insights. Also I have alert rule Whenever the total http server errors is greater than or equal to 1 count and I am not sure if hangfire 5xx errors will go under this condition.

So is there any way to track Hangfire jobs failures and get notified about them?

appinsights hangfire telemetry asp.net-core
2 Answers

Hangfire handles most exceptions under the hood, so App Insights is not going to pick them up by default. There is also a bunch of configuration you have to do with App Insights as well.

I wrote a JobFilter for Hangfire which allows you to connect with App Insights, this should be enough to get you going: https://github.com/maitlandmarshall/MIFCore/blob/master/MIFCore.Hangfire/Analytics/AppInsightsEventsFilter.cs

And for the App Insights configuration: https://github.com/maitlandmarshall/MIFCore/blob/master/MIFCore.Hangfire/Analytics/TelemetryConfigurationFactory.cs

To put everything together from the above links:

var appInsights = this.rootScope.ResolveOptional<AppInsightsConfig>();
var childScope = ServiceScope = this.rootScope.BeginLifetimeScope("HangfireServiceScope");
var activator = new AutofacLifecycleJobActivator(childScope);
var options = new BackgroundJobServerOptions()
{
    Activator = activator,
    Queues = new[] { JobQueue.Alpha, JobQueue.Beta, JobQueue.Default, JobQueue.Low }
};

this.globalConfig
    .UseFilter(new BackgroundJobContext());

if (!string.IsNullOrEmpty(appInsights?.InstrumentationKey))
{
    var telemetryClient = new TelemetryClient(TelemetryConfigurationFactory.Create(appInsights));
    this.globalConfig.UseFilter(new AppInsightsEventsFilter(telemetryClient));
}

using (var server = new BackgroundJobServer(options))
{
    await server.WaitForShutdownAsync(stoppingToken);
}
user_19787880

There was a nice nuget package created Hangfire.Extensions.ApplicationInsights.

So, install the package:

Install-Package Hangfire.Extensions.ApplicationInsights

and add the line to ConfigureService method:

services.AddHangfireApplicationInsights();

If your solution requires some custom details you can adjust the code from github repository.

user_43330330
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