Sending Message to Service Bus Topic taking too much time

Question

I am sending messages to Service Bus Topic from Azure Functions, and when the function is called for the first 3-4 times, it takes around 10-20 seconds to send message to Service Bus Topic, and I am looking ways to reduce this time, I am sending message to service bus using below code.

public class ServiceBusTopicService

    {
    private static ITopicClient _topicClient;

    public ServiceBusTopicService(string serviceBusConnectionString, string topicName)
    {
        _topicClient = new TopicClient(serviceBusConnectionString, topicName);
    }
    private  static async Task SendMessage(string json)
    {
        var message = new Message(Encoding.UTF8.GetBytes(json));

        await _topicClient.SendAsync(message);
    }

    public async Task BroadCastEvent(string matasId, Guid correlationId, string profileSource, string eventType)
    {
        var eventToPost = JsonConvert.SerializeObject(ProfileEvent.GetProfileEvent(matasId, correlationId, profileSource, eventType));
        await SendMessage(eventToPost);
    }
}

Is the function app hosted on consumption plan? – user1672994 Mar 19 '21 at 08:51 — user1672994, Mar 19 '21 at 08:51
Yes the function is hosted on Consumption tier – Shabir jan Mar 19 '21 at 09:12 — Shabir jan, Mar 19 '21 at 09:12

score 0 · Answer 1 · answered Mar 19 '21 at 16:58

0

If it's only at start up then it's very likely cold start problem.

See this answer for solutions.

answered Mar 19 '21 at 16:58

Kashyap

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thanks for your answer, I have checked the other dependencies in the same instance of Azure Function, took less than 100ms but only Service bus took 20 seconds. So i think it's more related to Service Bus latency issue. – Shabir jan Mar 20 '21 at 10:04

Sending Message to Service Bus Topic taking too much time

1 Answers1