FixedDelayRetry locking up the Function

Question

   CSharp  
   [FunctionName("FixedDelayRetryTest")]  
   [FixedDelayRetry(5, "00:01:00")]  
   public void Run(  
       [ServiceBusTrigger("Topic", "Subscription", Connection = "ServiceBusConnString")] string item,  
       ExecutionContext context,  
       ILogger log  
   )  
   {  
       log.LogInformation($"Function executed at: {DateTime.Now}");  
     
       throw new System.Exception("Error Happened!!");  
   }  

While testing the FixedDelayRetry Mechanism of Azure Function (v3 - .NET Core 3.1),

Getting stuck in the scenario like the Function won't process the next message until the function consumes all the remaining retries and that message ends up in the deadletter queue!

Answer 1

Hi @NFSCoder-9821 ,

You are seeing this behavior because you are throwing exception in the code. Please throw the exception in the catch block so that you dont encounter the retries.

[FunctionName("FixedDelayRetryTest")]
[FixedDelayRetry(5, "00:01:00")]
public void Run(
[ServiceBusTrigger("Topic", "Subscription", Connection = "ServiceBusConnString")] string item,
ExecutionContext context,
ILogger log
)
{
try
{
log.LogInformation($"Function executed at: {DateTime.Now}");
}
catch
{
throw new System.Exception("Error Happened!!");
}

}