RabbitMQ/MassTransit Timeout - .net-core

Question

We are using RabbitMQ and MassTransit to exchange messages between publishers and consumers. Sometimes we are getting below exception message and then our all message transmissions are suddenly stopping. I am posting also our bus configuration code below.
One or more errors occurred. (Timeout waiting for response,
RequestId: 00c60000-0aff-0242-e641-08d6a323ec24)",
"MassTransit.RequestTimeoutException: Timeout waiting for response,
RequestId: 00c60000-0aff-0242-e641-08d6a323ec24 at MassTransit.Clients.ResponseHandlerConnectHandle`1.GetTask()
at MassTransit.Clients.ClientRequestHandle`1.HandleFault() at MassTransit.Clients.ResponseHandlerConnectHandle`1.GetTask()
at MassTransit.Clients.RequestClient`1.GetResponse[T](TRequest message, CancellationToken cancellationToken, RequestTimeout timeout)
Here is our bus configuration
service.AddSingleton(provider => Bus.Factory.CreateUsingRabbitMq(cfg =>
{
if (startQuartz)
{
startQuartz = false;
MicroServiceConfig.MicroServiceHost.StartScheduledServices();
}
var config = provider.GetRequiredService<SLOTServerConfiguration>();
var vh = GetVirtualHost(config);
var url = config.RabbitMQHost + (config.RabbitMQHost.EndsWith("/") ? "" : "/") + vh;
var host = cfg.Host(new Uri(url), hst =>
{
hst.Username(config.RabbitMQUserName);
hst.Password(config.RabbitMQPassword);
});
if (!isApi)
{
cfg.AddReceiveEndpoint(host, provider, service, isApi);
host.ConnectConsumeObserver(new UserObserver());
host.ConnectSendObserver(new ErrorObserver());
}
}));
service.AddSingleton<IPublishEndpoint>(provider => provider.GetRequiredService<IBusControl>());
service.AddSingleton<ISendEndpointProvider>(provider => provider.GetRequiredService<IBusControl>());
service.AddSingleton<IBus>(provider => provider.GetRequiredService<IBusControl>());
service.AddSingleton<IHostedService, BusService>();
service.AddMassTransit(x =>
{
var method = x.GetType().GetMethod("AddConsumer");
foreach (var item in RegisteredTypes)
{
method.MakeGenericMethod(item.ConsumerType).Invoke(x, new object[0]);
}
});
}
private static void AddReceiveEndpoint(this IRabbitMqBusFactoryConfigurator cfg, IRabbitMqHost host, IServiceProvider provider, IServiceCollection service, bool registerClient)
{
var queueName = DateTime.Now.ToFileTimeUtc().ToString() + JsonConvert.SerializeObject(MicroServiceConfig.MicroServiceHost.ServiceNames).GetHashCode();
cfg.ReceiveEndpoint(host, queueName, e =>
{
e.AutoDelete = true;
e.PrefetchCount = 16;
e.UseMessageRetry(x => x.Interval(2, 100));
e.LoadFrom(provider);
});
}
private static string GetVirtualHost(SLOTServerConfiguration config)
{
var vh = config.RabbitMQVirtualHost;
if(string.IsNullOrEmpty(vh))
{
vh = Environment.MachineName;
}
}
Update :
Below you can find the publisher and consumer code blocks
var res = ThreadClient.GetResponse<AddExternalOutboundOrderListRequestModel, OutboundOrderResponseItem>(
_requestClient,
new ServerRequest<AddExternalOutboundOrderListRequestModel> { Model = model, Token = Request.Headers["token"] }
);
var ret = BaseResponseModel.Ok(res.Data, Request.Headers["RequestID"]);
ret.ExceptionMessage = res.ThreadExceptions;
return ret;
Consumer :
public Task Consume(ConsumeContext<ServerRequest<AddExternalOutboundOrderListRequestModel>> context)
{
var response = _outboundOrderWorkFlow.Add(context.Message.Model);
ServerResponse<OutboundOrderResponseItem> res = new ServerResponse<OutboundOrderResponseItem>
{
Data = response
};
context.Respond(res);
return Task.Delay(0);
}