Redis backplane for ABP SignalR #1380

16 Answer(s)

• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  Have you tried the steps on this document?

  https://docs.microsoft.com/en-us/aspnet/core/signalr/redis-backplane?view=aspnetcore-5.0

  Configure ISignalRServerBuilder in module.

  public override void PreConfigureServices(ServiceConfigurationContext context)
  {
  	context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
  	{
  		builder.AddStackExchangeRedis("connectionString", options =>
  		{
  			options.Configuration.ChannelPrefix = "MyApp";
  		});
  	});
  }
  

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  i didnt try steps given in microsoft documnet as it required install Microsoft.AspNetCore.SignalR.StackExchangeRedis and add config setp services.AddSignalR().AddStackExchangeRedis("<your_Redis_connection_string>");

  But i tried your suggeted preconfig in my appservice module but it didnt worked in AWS ECS. please find below current config and let me know, if anything else is required

  public override void PreConfigureServices(ServiceConfigurationContext context)
  {
      var hostingEnvironment = context.Services.GetHostingEnvironment();
  
      var configuration = context.Services.GetConfiguration();
  
      if (!hostingEnvironment.IsDevelopment())
      {
          context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
          {
              builder.Services.AddStackExchangeRedisCache(options =>
              {
                  options.Configuration = configuration["Redis:Configuration"];
              });
          });
      }
    }
  

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  You should follow the steps and code in the document to try. If it doesn't work, please check the logs to know what's wrong.

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  Hi,

  As per Microsoft document, we need to add services.AddSignalR().AddStackExchangeRedis("<your_Redis_connection_string>"); in configservices but as per ABP documement, it says that You don't need to use the services.AddSignalR() and the app.UseEndpoints(...), it's done by the AbpAspNetCoreSignalRModule. we are using AbpAspNetCoreSignalRModule module

  https://docs.abp.io/en/abp/latest/SignalR-Integration

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  we need to add services.AddSignalR().AddStackExchangeRedis("<your_Redis_connection_string>");

  Yes, but you need to configure the ISignalRServerBuilder.

  public override void PreConfigureServices(ServiceConfigurationContext context)
  {
  	context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
  	{
  		builder.AddStackExchangeRedis("connectionString", options =>
  		{
  			options.Configuration.ChannelPrefix = "MyApp";
  		});
  	});
  }
  

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  Yes, i did. here is sample code. i dont get option for AddStackExchangeRedis

  public override void PreConfigureServices(ServiceConfigurationContext context) { var hostingEnvironment = context.Services.GetHostingEnvironment();

  var configuration = context.Services.GetConfiguration();
  
  if (!hostingEnvironment.IsDevelopment())
  {
      context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
      {
          builder.Services.AddStackExchangeRedisCache(options =>
          {
              options.Configuration = configuration["Redis:Configuration"];
          });
      });
  }
  

  }

  also, do you mein i need to add services.AddSignalR().AddStackExchangeRedisCache("<your_Redis_connection_string>"); in configservice as well ?

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  You need install the Microsoft.AspNetCore.SignalR.StackExchangeRedis package. https://www.nuget.org/packages/Microsoft.AspNetCore.SignalR.StackExchangeRedis/

  Then

  public override void PreConfigureServices(ServiceConfigurationContext context)
  {
  	context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
  	{
  		builder.AddStackExchangeRedis("connectionString", options =>
  		{
  			options.Configuration.ChannelPrefix = "MyApp";
  		});
  	});
  }
  

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  Hi,

  I tried with given approach but no success. still facing same issue. SingalR pub/sub is working fine with single ECS container but not with multiple.

  public override void PreConfigureServices(ServiceConfigurationContext context)
  {
      var hostingEnvironment = context.Services.GetHostingEnvironment();
  
      var configuration = context.Services.GetConfiguration();
  
      if (!hostingEnvironment.IsDevelopment())
      {
          var redis = configuration["Redis:Configuration"];
  
          context.Services.PreConfigure<ISignalRServerBuilder>(builder =>
          {
              builder.AddStackExchangeRedis(redis, options =>
              {
                  options.Configuration.ChannelPrefix = "InvoiceManagement";
              });
          });
  
      }
  }
  

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  HI

  Is there any messages in the logs?

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  Hi,

  There is no issue found in logs related to SignalR but it is not working as expected . 1 ECS container message is not getting to other container.

  Save Cancel
• 

  0

  alper created 3 years ago

  Support Team Director

  any logs in browser?

  Save Cancel
• 

  0

  vishalnikam created 3 years ago

  Hi,

  there is no issue log in browser either. as said we are running this invoice service in multiple container so one only get the hub notification to the user connetced to the same container and rest users connected to other container not getting notification. this should be solve by Redis backplane but given solution is not working.

  Save Cancel
• 

  0

  maliming created 3 years ago

  Support Team Fullstack Developer

  hi

  I can't think of any possible reasons, we have followed Microsoft's documentation.

  Can you try to use redis backplane in non-abp applications?

  Save Cancel
• 

  0

  ServiceBot created 3 years ago

  Support Team Automatic process manager

  This question has been automatically marked as stale because it has not had recent activity.

  Save Cancel

  1
• 

  1

  petro.samoshkin@advantiss.com created one year ago

  We had the same issue after disabling "sticky" sessions on the scaled-out Azure AppService host. Appeared that SignalR protocol performs first call to negotiate protocol, then second call randomly can be sent to another node. This can be fixed by disabling negotiation on client side. This fix helped us. Please add this point to the ABP SignalR integration documentation because it makes pain for everybody who tries to scaling out the backend with use of custom Redis backplane.

  const options = {
        skipNegotiation: true,
        transport: 1 // WebSockets
      };
  

  https://github.com/dotnet/aspnetcore/issues/11678

  Save Cancel
• 

  0

  maliming created one year ago

  Support Team Fullstack Developer

  Thanks petro.samoshkin

  Save Cancel