Cosmos DB Throttled Requests

Thanks.

I have the AllowBulkExecution to true. I'm adding throttling handler like this :

configurationBuilder.WithRequestTimeout(new TimeSpan(0,0,30)); 
configurationBuilder.WithThrottlingRetryOptions(new TimeSpan(0, 0, 30), 20);
configurationBuilder.AddCustomHandlers(new ThrottlingHandler());

Custom throttling function with Polly :

ThrottlingHandler

public override Task<ResponseMessage> SendAsync(
            RequestMessage request,
            CancellationToken cancellationToken)
        {
            return Policy
                .HandleResult<ResponseMessage>(r => (int) r.StatusCode == 429)
                .RetryAsync(3)
                .ExecuteAsync(() => base.SendAsync(request, cancellationToken));
        }

Thanks let me know, where I'm missing.

Try removing the WithRequestTimeout and WithThrottlingRetryOptions.

Why retry just three times? Try using .RetryForeverAsync() in your override and amortize them over a longer period of time until they are all completed.