Troubleshooting .NET core metrics

This section contains some guidelines for handling errors that you may encounter when trying to collect .NET metrics.

Problem: No metrics received

Problem: No metrics received

No metrics are observed in your Logz.io account.

Possible cause - Incorrect token and/or listener URL

Your Logz.io token and/or listener URL may be incorrect.

Suggested remedy

Navigate to Manage tokens > Data shipping tokens - Metrics and verify your account’s metrics token and listener URL.
Check in the integration code whether the token and listener URL are specified correctly.

Possible cause - Shipper connectivity failure

Your host/server may not be connected to your Logz.io listener.

Suggested remedy

Verify connectivity of your Logz.io listener as follows.

For Linux and Mac servers, use telnet:
```
telnet listener.logz.io <<PORT>>
```
For Windows servers running Windows 8/Server 2012 and later, use the following command in PowerShell:
```
Test-NetConnection listener.logz.io -Port <<PORT>>
```
Replace <<PORT>> with the appropriate port nummber. For HTTPS communication use port 8053. For HTTP communication use port 8052.

Possible cause - Incorrect listener endpoint

Your Logz.io listener may not be using the correct endpoint.

Suggested remedy

Change the endpoint of your listener from https://<<LISTENER-HOST>>:<<PORT>> to http://<<LISTENER-HOST>>:<<PORT>> or from http://<<LISTENER-HOST>>:<<PORT>> to https://<<LISTENER-HOST>>:<<PORT>>

Replace <<LISTENER-HOST>> with the host for your region. For example, listener.logz.io if your account is hosted on AWS US East, or listener-nl.logz.io if hosted on Azure West Europe. The required port depends whether HTTP or HTTPS is used: HTTP = 8070, HTTPS = 8071.

Possible cause - Kubernetes environment - prometheus.io/scrape is not set

If you’re running .NET on Kubernetes, the prometheus.io/scrape may not be enabled.

Suggested remedy

Make sure you have the scrape setting enabled as follows: prometheus.io/scrape: true.

Possible cause - Code needs debugging

If all the above causes are not applicable, the code may need debugging.

Suggested remedy

Check if the following code works with your integration:

using System;
using System.Threading;
using System.Threading.Tasks;
using App.Metrics.Counter;
using App.Metrics.Scheduling;

namespace App.Metrics.Logzio
{
    class Program
    {
        static void Main(string[] args)
        {
            var metrics = new MetricsBuilder()
                .Report.ToLogzioHttp("[[logzio_endpoint]]", "[[metrics_token]]")
                .Build();

            var scheduler = new AppMetricsTaskScheduler(
                TimeSpan.FromSeconds(5),
                async () => { await Task.Run(() => metrics.ReportRunner.RunAsync<LogzioMetricsReporter>()); });
            scheduler.Start();

            var counter = new CounterOptions {Name = "my_counter", Tags = new MetricTags("test", "my_test")};
            metrics.Measure.Counter.Increment(counter);

            Thread.Sleep(10000);

            metrics.Measure.Counter.Increment(counter);

            Thread.Sleep(100000); // Lets the program to continue running so that the scheduler wiil be able to continue sending metrics to Logz.io 
        }
    }
}

If this code is not working, we need to start debugging the integration.

App Metrics supports the following .NET logging providers:

Serilog
NLog
log4net
EntLib
Loupe

To see in-app logs, configure your desired log provider and change the properties of your config file as follows:

Copy to output directory to Copy if newer or Copy always.