Concurrent requests with different services, using consul, returns the same service and then 404

[minnocenti901]

Expected Behavior

Ocelot should request from Consul the correct service for every route

Actual Behavior

If concurrent requests, ocelot uses the same servicename for every concurrent request

Steps to Reproduce the Problem

On consul I have 2 services registered:
ProjectsService with url http://localhost:5013
CustomersService with url http://localhost:5004

Ocelot is running on http://localhost:5280

Global configuration:

  "GlobalConfiguration": {
    "RequestIdKey": "ApiGateway",
    "ServiceDiscoveryProvider": {
      "Type": "Consul",
      "Port": "8502",
      "Host": "192.168.0.204"
    }
  }

Routes configuration:

{
  "UpstreamHttpMethod": ["GET","POST","PUT","DELETE"],
  "UpstreamPathTemplate": "/projects/{all}",
  "DownstreamPathTemplate": "/{all}",
  "ServiceName": "ProjectsService"
},
{
  "UpstreamHttpMethod": ["GET","POST","PUT","DELETE"],
  "UpstreamPathTemplate": "/customers/{all}",
  "DownstreamPathTemplate": "/{all}",
  "ServiceName": "CustomersService"
}

Then, at startup, I make 3 different requests at the same time:

• GET http://localhost:5280/projects/api/projects
• GET http://localhost:5280/projects/api/industrialSectors
• GET http://localhost:5280/customers/api/customers

This is the log in console with LogLevel Debug

dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline started'
dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline started'
dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline started'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Upstream URL path is '/projects/api/projects'.'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Upstream URL path is '/customers/api/customers'.'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Upstream URL path is '/projects/api/industrialSectors'.'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'downstream templates are /{all}'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'downstream templates are /{all}'
dbug: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'downstream templates are /{all}'
info: Ocelot.RateLimiting.Middleware.RateLimitingMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'EndpointRateLimiting is not enabled for /{all}'
info: Ocelot.RateLimiting.Middleware.RateLimitingMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'EndpointRateLimiting is not enabled for /{all}'
info: Ocelot.RateLimiting.Middleware.RateLimitingMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'EndpointRateLimiting is not enabled for /{all}'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: '/customers/api/customers is an authenticated route. AuthenticationMiddleware checking if client is authenticated'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: '/projects/api/industrialSectors is an authenticated route. AuthenticationMiddleware checking if client is authenticated'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: '/projects/api/projects is an authenticated route. AuthenticationMiddleware checking if client is authenticated'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Client has been authenticated for /customers/api/customers'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Client has been authenticated for /projects/api/industrialSectors'
info: Microsoft.AspNetCore.Authentication.AuthenticationMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Client has been authenticated for /projects/api/projects'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'route is authenticated scopes must be checked'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'route is authenticated scopes must be checked'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'route is authenticated scopes must be checked'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'user scopes is authorized calling next authorization checks'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'user scopes is authorized calling next authorization checks'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'user scopes is authorized calling next authorization checks'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: '/{all} route does not require user to be authorized'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: '/{all} route does not require user to be authorized'
info: Ocelot.Authorization.Middleware.AuthorizationMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: '/{all} route does not require user to be authorized'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'The UseServiceDiscovery mode of the route '^(?i)/projects(?:|/.*)$' is enabled.'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'The UseServiceDiscovery mode of the route '^(?i)/projects(?:|/.*)$' is enabled.'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'The UseServiceDiscovery mode of the route '^(?i)/customers(?:|/.*)$' is enabled.'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Getting service discovery provider of Type 'Consul'...'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Getting service discovery provider of Type 'Consul'...'
info: Ocelot.ServiceDiscovery.ServiceDiscoveryProviderFactory[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Getting service discovery provider of Type 'Consul'...'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 service entries for 'ProjectsService' service.'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 service entries for 'ProjectsService' service.'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 service entries for 'ProjectsService' service.'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 catalog nodes.'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 catalog nodes.'
dbug: Ocelot.Provider.Consul.Consul[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Consul Provider: Found total 1 catalog nodes.'
dbug: Ocelot.DownstreamUrlCreator.Middleware.DownstreamUrlCreatorMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'Downstream url is http://localhost:5013/api/projects'
dbug: Ocelot.DownstreamUrlCreator.Middleware.DownstreamUrlCreatorMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'Downstream url is http://localhost:5013/api/industrialSectors'
dbug: Ocelot.DownstreamUrlCreator.Middleware.DownstreamUrlCreatorMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'Downstream url is http://localhost:5013/api/customers'
warn: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: '404 (Not Found) status code of request URI: http://localhost:5013/api/customers.'
dbug: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'setting http response message'
dbug: Ocelot.Responder.Middleware.ResponderMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'no pipeline errors, setting and returning completed response'
dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FED:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline finished'
dbug: Microsoft.AspNetCore.Server.Kestrel.Connections[9]
      Connection id "0HN50O7EO7FED" completed keep alive response.
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET http://localhost:5280/customers/api/customers - 404 0 - 1404.2153ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[16]
      Request reached the end of the middleware pipeline without being handled by application code. Request path: GET http://localhost:5280/customers/api/customers, Response status code: 404
info: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: '200 (OK) status code of request URI: http://localhost:5013/api/projects.'
info: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: '200 (OK) status code of request URI: http://localhost:5013/api/industrialSectors.'
dbug: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'setting http response message'
dbug: Ocelot.Requester.Middleware.HttpRequesterMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'setting http response message'
dbug: Ocelot.Responder.Middleware.ResponderMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'no pipeline errors, setting and returning completed response'
dbug: Ocelot.Responder.Middleware.ResponderMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'no pipeline errors, setting and returning completed response'
dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FEC:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline finished'
dbug: Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0]
      requestId: 0HN50O7EO7FEE:00000001, previousRequestId: No PreviousRequestId, message: 'ocelot pipeline finished'
dbug: Microsoft.AspNetCore.Server.Kestrel.Connections[9]
      Connection id "0HN50O7EO7FEC" completed keep alive response.
dbug: Microsoft.AspNetCore.Server.Kestrel.Connections[9]
      Connection id "0HN50O7EO7FEE" completed keep alive response.
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET http://localhost:5280/projects/api/projects - 200 2743 application/json;+charset=utf-8 3878.4309ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET http://localhost:5280/projects/api/industrialSectors - 200 339 application/json;+charset=utf-8 3879.4389ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[16]
      Request reached the end of the middleware pipeline without being handled by application code. Request path: GET http://localhost:5280/projects/api/projects, Response status code: 200
info: Microsoft.AspNetCore.Hosting.Diagnostics[16]
      Request reached the end of the middleware pipeline without being handled by application code. Request path: GET http://localhost:5280/projects/api/industrialSectors, Response status code: 200

I'm expecting that for the route /customers it uses CustomersService instead of ProjectsService.

Specifications

• Version: Ocelot 23.3.3, Ocelot.Provider.Consul 23.3.3, Consul 1.12.0
• Platform: .NET8

[raman-m]

Hello @minnocenti901! What is your full name?
I suspect there is an issue with your project setup, Consul configuration, or networking. Let's work together to identify the root cause.

Ocelot is running on http://localhost:5280

Global configuration:

  "GlobalConfiguration": {
    "RequestIdKey": "ApiGateway",
    "ServiceDiscoveryProvider": {
      "Type": "Consul",
      "Port": "8502",
      "Host": "192.168.0.204"
    }
  }

The BaseUrl property is missing and is required. As outlined in our Getting Started documentation, the BaseUrl must be defined in the Configuration section of the JSON file, as shown below:

  "GlobalConfiguration": {
    "BaseUrl": "http://localhost:5280", // this is crucial!
    "RequestIdKey": "ApiGateway",
    "ServiceDiscoveryProvider": {
      "Type": "Consul",
      "Port": "8502",
      "Host": "192.168.0.204"
    }
  }

Please could you provide the complete ocelot.json file for review?

[raman-m]

Expected Behavior

Ocelot should request from Consul the correct service for every route

Steps to Reproduce the Problem

On consul I have 2 services registered:
ProjectsService with url http://localhost:5013
CustomersService with url http://localhost:5004
Ocelot is running on http://localhost:5280

🆗 Could you show us complete Consul configuration please, service mappings, nodes etc.?

Regarding networking... I see you use learning solution at local machine in Docker or without, right?

[raman-m]

Specifications

• Version: Ocelot 23.3.3, Ocelot.Provider.Consul 23.3.3, Consul 1.12.0
• Platform: .NET8

🆗 Please revert the version to 23.2.2 and conduct the same tests.

[minnocenti901]

Adding BaseUrl didn't solve the issue.
This is the complete ocelot.json

{
  "Routes": [
    {
      "DownstreamPathTemplate": "/{all}",
      "DownstreamScheme": "http",
      "ServiceName": "CustomersService",
      "UpstreamPathTemplate": "/customers/{all}",
      "UpstreamHttpMethod": [
        "GET",
        "POST",
        "PUT",
        "DELETE"
      ],
      "ReRouteIsCaseSensitive": false,
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      },
      "LoadBalancerOptions": {
        "Type": "LeastConnection"
      }
    },
    {
      "DownstreamPathTemplate": "/{all}",
      "DownstreamScheme": "http",
      "ServiceName": "ProjectsService",
      "UpstreamPathTemplate": "/projects/{all}",
      "UpstreamHttpMethod": [
        "GET",
        "POST",
        "PUT",
        "DELETE"
      ],
      "ReRouteIsCaseSensitive": false,
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      },
      "LoadBalancerOptions": {
        "Type": "LeastConnection"
      }
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "http://localhost:5280",
    "RequestIdKey": "ApiGateway",
    "ServiceDiscoveryProvider": {
      "Type": "Consul",
      "Port": "8502",
      "Host": "192.168.0.204"
    }
  }
}

I'm running it inside visual studio 2022 professional on windows 11. The issue is also present if running it in a docker container on Ubuntu Server 22.04

I forgot to mention that I have upgraded from Ocelot 22.0.1 on .NET6 to latest version 23.3.3 on .NET8. Before the upgrade everything was working perfectly.

Consul is running on docker compose with this .yml:

  consul:
    restart: always
    image: consul:1.12.0
    volumes:
      - ./data/consul:/consul/data
    command: agent -server -ui -node=server-1 -client=0.0.0.0 -bootstrap-expect=1
    ports:
      - "8502:8500"
    logging:
      driver: "json-file"
      options:
          max-size: "50m"

[minnocenti901]

Reverting to 23.2.2 fixed the issue

[minnocenti901]

Hello @minnocenti901! What is your full name?

Hello! It's Massimiliano Innocenti

[raman-m]

Actual Behavior

If concurrent requests, ocelot uses the same servicename for every concurrent request

Then, at startup, I make 3 different requests at the same time:

• GET http://localhost:5280/projects/api/projects
• GET http://localhost:5280/projects/api/industrialSectors
• GET http://localhost:5280/customers/api/customers

logs...

I'm expecting that for the route /customers it uses CustomersService instead of ProjectsService.

It seems we may have encountered a bug following a significant refactoring of the Consul provider by PR #2067 and commit 34cb3eb

---

Reverting to 23.2.2 fixed the issue

@minnocenti901 Excellent! Continue using version 23.2.2 until we have resolved or understood the problem.

@ggnaegi, could you please join us and collaborate on this issue? Have you deployed version 23.3.x to Production?

[minnocenti901]

@raman-m Thank you for your time!

[raman-m]

@minnocenti901 commented

Hello! It's Massimiliano Innocenti

LoL Massimiliano Innocenti on LinkedIn
Which one could be you? 😄

[minnocenti901]

I prefer not to answer :)

[raman-m]

@minnocenti901, are you a C# developer?
If so, would you be willing to collaborate on problem-solving: code researching, debugging, design review and probably open a PR?

[minnocenti901]

@minnocenti901, are you a C# developer?

Yes

If so, would you be willing to collaborate on problem-solving: code researching, debugging, design review and probably open a PR?

No, thank you. I don't have time :\ Im sorry

[raman-m]

No, thank you. I don't have time :\ Im sorry

How did you detect the issue? Are you using Ocelot for certain projects?
Regardless, I appreciate you reporting the bug!

[minnocenti901]

I use it as main api gateway for a microservices architecture. I need to upgrade from NET6 to NET8 due to upcoming end of service and with the update I had to recheck that everything still works. Then comes the issue

[raman-m]

Understood. For the time being, please proceed with version 23.2.2 for your solution upgrade.

[raman-m]

@minnocenti901 commented Jul 10, 2024, 1:08 PM:

Reverting to 23.2.2 fixed the issue

Good. Did you change anything in the Consul services registrations, or was there nothing except a version increase? It seems the issue was introduced by PR #2067. You are correct; the issue might be related to concurrency. Max, could you please share the JSON from the Consul client? I need the complete list of services registered in Consul.

[minnocenti901]

I just increase version of Ocelot. How do I get the JSON you need?

[ggnaegi]

@raman-m @minnocenti901 I'm on it, cheers

[raman-m]

Let me to proceed with this, @ggnaegi. Please concentrate on issue #2116. It appears that the author is not intending to contribute but rather aims to direct our attention to this bug.

[raman-m]

@minnocenti901 Max, are you online?

[minnocenti901]

Yes, i've seen you marked as closed. You need some testing?

[raman-m]

The hotfix has been released in ver. 23.3.4, so you can download the pack from NuGet.
I've completed all the testing on my side 😸. Now, I would like to ask if you could perform testing in your environment, preferably manual testing in a real setting. What kind of environment do you have? Production, Staging, or Local?

[minnocenti901]

Local and Staging, cannot run tests on production

[raman-m]

Can you handle deployment? What is your role in the project, QA?
Reporting back the test results from Staging is sufficient for me.

[minnocenti901]

Yes I can. I have to update to 23.3.4?

[raman-m]

Emm... Yes, please, update version, deploy and test.

[minnocenti901]

Updated from 23.2.2 to 23.3.4.
I now receive this error for every request I make:

warn: Ocelot.Responder.Middleware.ResponderMiddleware[0]
      requestId: 0HN74COOPNRLJ:00000001, previousRequestId: No PreviousRequestId, message: 'Error Code: ConnectionToDownstreamServiceError Message: Error connecting to downstream service, exception: System.Net.Http.HttpRequestException: Resource temporarily unavailable (server-1:80)
       ---> System.Net.Sockets.SocketException (11): Resource temporarily unavailable
         at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
         at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
         at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|285_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
         at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
         --- End of inner exception stack trace ---
         at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
         at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
         at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
         at System.Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem)
         at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
         at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
         at System.Net.Http.DiagnosticsHandler.SendAsyncCore(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
         at Ocelot.Requester.TimeoutDelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
         at Ocelot.Requester.MessageInvokerHttpRequester.GetResponse(HttpContext httpContext) errors found in ResponderMiddleware. Setting error response for request path:/projects/api/projects, request method: GET'

Configuration is not changed and it is the same as the one is posted

EDIT:
server-1 is the node name of consul

[raman-m]

Did you read this:

• Consul Service Builder
• AddConsul{T} method

[raman-m]

server-1 is the node name of consul

Default service builder uses node name as a host!

Ocelot/src/Ocelot.Provider.Consul/DefaultConsulServiceBuilder.cs

Lines 96 to 97 in 6088515

	protected virtual string GetDownstreamHost(ServiceEntry entry, Node node)
	=> node != null ? node.Name : entry.Service.Address;

This is current best practice because node may/should contain the same hosts but different ports in load balancing scenarios, when Docker containers are deployed with different ports but same host. In this case it is logical thing to assign real host name to node name.

But I guess if Consul has setup by default, seems node names are abstract.
Please apply quick patch from the docs! Or go to Consul admin tool and assign real host names to node names!

It's curious how your environment functioned properly with version 23.2.2, given that the "node name as host name" feature has been available since version 13.5.2.

[minnocenti901]

After the implementation of a "MyConsulServiceBuilder" using only the service.address it works perfectly. Thanks.

It's curious how your environment functioned properly with version 23.2.2, given that the "node name as host name" feature has been available since version 13.5.2.

I don't know :( it worked.

[raman-m]

I'm just curious, could you make node name empty in Consul admin? Seems not, right?

I've asked AI and got this answer :D

In Consul administration, it is not possible to have an empty node name; however, you can change the node name and IP address by following a specific procedure which involves removing the node from the cluster, wiping its local data, and then restarting it as a new node with the updated information. Additionally, ACL rules in Consul allow for read-write access to a node with a specific name, and read-only access to any node name using an empty prefix.

[raman-m]

After the implementation of a "MyConsulServiceBuilder" using only the service.address it works perfectly. Thanks.

It's curious how your environment functioned properly with version 23.2.2, given that the "node name as host name" feature has been available since version 13.5.2.

I don't know :( it worked.

Great! Congrats! 🥳
Can you start deployment and testing please?
I am expecting your feedback by the end of the day...

[minnocenti901]

Local and Staging works perfectly. Every concurrent request receives the correct route. Can't test in production, sorry

[raman-m]

It appears we've officially resolved the issue. 😃

Can't test in production, sorry

No worries! Are other team members responsible for Production?
It would be beneficial to inform them about the successful tests in Staging so they can initiate a new Prod deployment.

Thank you for your contribution!