Connecting to another machine using RabbitMQ

[Klaus Nji]

I have created a sample pub/sub that works on the local machine.  When creating an instance of the ConnectionFactory, I pass it the HostName of "localhost" as illustrated below:

   var factory = new ConnectionFactory() { HostName = "localhost" };

I have installed RabbitMQ on a second machine and have used

 netstat -ano | find "5672"

to validate that this service has been installed and is indeed listening on port 5672.  However, when I start my publisher, it is unable to connect to the second machine, throwing the following exception:

RabbitMQ.Client.Exceptions.BrokerUnreachableException was unhandled

  HResult=-2146232800

  Message=None of the specified endpoints were reachable

  Source=RabbitMQ.Client

  StackTrace:

       at RabbitMQ.Client.ConnectionFactory.CreateConnection()

       at Producer.PubSubServiceBusEndPoint..ctor(String queueName, String brokerHostName) in c:\dev\src\oss\RabbitMqTutorials\Producer\PubSubServiceBusEndPoint.cs:line 25

       at Producer.Program.Main() in c:\dev\src\oss\RabbitMqTutorials\Producer\Program.cs:line 7

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: RabbitMQ.Client.Exceptions.ConnectFailureException

       HResult=-2146233087

       Message=Connection failed

       Source=RabbitMQ.Client

       StackTrace:

            at RabbitMQ.Client.Impl.SocketFrameHandler.Connect(TcpClient socket, AmqpTcpEndpoint endpoint, Int32 timeout)

            at RabbitMQ.Client.Impl.SocketFrameHandler..ctor(AmqpTcpEndpoint endpoint, ObtainSocket socketFactory, Int32 timeout)

            at RabbitMQ.Client.Framing.Impl.ProtocolBase.CreateFrameHandler(AmqpTcpEndpoint endpoint, ObtainSocket socketFactory, Int32 timeout)

            at RabbitMQ.Client.ConnectionFactory.CreateFrameHandler()

            at RabbitMQ.Client.ConnectionFactory.CreateConnection()

       InnerException: System.Net.Sockets.SocketException

            HResult=-2147467259

            Message=A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond aaa.bbb.40.176:5672

            Source=System

            ErrorCode=10060

            NativeErrorCode=10060

            StackTrace:

                 at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)

                 at System.Net.Sockets.TcpClient.EndConnect(IAsyncResult asyncResult)

                 at RabbitMQ.Client.Impl.SocketFrameHandler.Connect(TcpClient socket, AmqpTcpEndpoint endpoint, Int32 timeout)

            InnerException: 

Is this a firewall issue?

[Alvaro Videla]

See: https://www.rabbitmq.com/access-control.html

Specifically that the guest user can't connect from remote machines

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[Simon MacMullen]

Note that OP's exception said:

"A connection attempt failed because the connected party did not
properly respond after a period of time, or established connection
failed because connected host has failed to respond"

so I think it *is* more likely to be a firewall issue; the
guest/localhost thing should lead to an explicit authentication failure.

OP: I suggest the usual connectivity checks - can you connection using
telnet to port 5672?

Cheers, Simon

On 18/02/15 13:59, Alvaro Videla wrote:
> See: https://www.rabbitmq.com/access-control.html
>
> Specifically that the guest user can't connect from remote machines
>
> On Wed Feb 18 2015 at 2:55:31 PM Klaus Nji <klau...@gmail.com

> <mailto:klau...@gmail.com>> wrote:
>
> I have created a sample pub/sub that works on the local machine.
> When creating an instance of the ConnectionFactory, I pass it the
> HostName of "localhost" as illustrated below:
>
> |

> varfactory =newConnectionFactory(){HostName="localhost"};

> <mailto:rabbitmq-user...@googlegroups.com>.

> To post to this group, send email to rabbitm...@googlegroups.com

> <mailto:rabbitm...@googlegroups.com>.

> For more options, visit https://groups.google.com/d/optout.
>

> --
> You received this message because you are subscribed to the Google
> Groups "rabbitmq-users" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to rabbitmq-user...@googlegroups.com

> <mailto:rabbitmq-user...@googlegroups.com>.

> To post to this group, send email to rabbitm...@googlegroups.com

> <mailto:rabbitm...@googlegroups.com>.