Azure function not triggered by EventHubTrigger

Question

I have an event hub that has a load of events in it. I also have an Azure function written in C#, but it's not receiving any events. This is what the setup looks like:

Function:

private const string EventHubName = "eventhub";
private const string ConnectionStringName = "Settings:EventHubConsumerConnectionstring";

[FunctionName("InformationHandler")]
public async Task RunAsync(
    [EventHubTrigger(EventHubName, Connection = ConnectionStringName)] EventData[] eventData,
    ILogger log)

Host.json:

{
    "version": "2.0",
    "aggregator": {
        "batchSize": 1000,
        "flushTimeout": "00:01:00"
    },
    "logging": {
        "applicationInsights": {
            "samplingExcludedTypes": "Request",
            "samplingSettings": {
                "isEnabled": true
            }
        }
    },
    "extensions": {
        "eventHubs": {
            "batchCheckpointFrequency": 1,
            "eventProcessorOptions": {
                "maxBatchSize": 64,
                "prefetchCount": 128
            }
        }
    }
}

Output when running:

Functions:

        InformationHandler: eventHubTrigger

For detailed output, run func with --verbose flag.
[2021-02-25T21:48:01.621Z] Host lock lease acquired by instance ID '000000000000000000000000DC59BDB5'.

I'm using netcoreapp3.1 with Azure Functions 3. I have the following NuGet packages installed:

Does anyone know why I'm not receiving any events? The connection string is correct and it can find the settings in my settings file.

Answer 1

Your code seems correct. Here are some points you can check:

1.Please make you're using the event hub namespace level connection string.

2.you can also create a new consumer group and use the new consumer group in your azure function.

3.It may be a temp issue. Just restart your function or create a new function to see if it can work.