[rabbitmq-discuss] no connection established

Tue May 13 18:46:46 BST 2008

I am not a RabbitMQ expert, but it seems to me that this message is te key
to your problems:

  endpoint=amqp-0-9://alpeduez:5672, attempts=1, outcome=*AMQP server
protocol negotiation failure: server version 0-8*, transport parameters
-1:-1

RabbitMQ Server currently supports AMQP protocol version 0.8, and it seems
as if the clients are connecting with a 0.9 protocol. I think if you ensure
that all clients are talking 0.8 things will work better. I think :)

Hope this helps
Edwin Fine

On Tue, May 13, 2008 at 12:59 PM, <David.Corcoran at edftrading.com> wrote:

> Hey Geoffrey,
>
> If you try:
> DeclareQueue.exe localhost testqueue
> do you have any more luck?
>
> Although RabbitMQ is listening to 0.0.0.0 there may be some hostname
> resolution issues happening.
>
> Dave
>
>
>
>
>             Geoffrey Anderson
>             <mrcoder at yahoo.co
>             m>                                                         To
>             Sent by:                  rabbitmq-discuss at lists.rabbitmq.com
>             rabbitmq-discuss-                                          cc
>             bounces at lists.rab
>             bitmq.com                                             Subject
>                                       [rabbitmq-discuss] no connection
>                                       established
>             13/05/2008 17:53
>
>
>
>
>
>
>
>
>
>
> The rabbitmq server runs, it seems, but no connections are being accepted
> by it,
> from the java samples or dotnet sample programs or my own programs.
>
> For three days I have been trying everything imaginable to me to get any
> client
> program to connect to the rabbitmq server.  For example I disabled tcpv6
> on
> my
> system and tried all manner of user permissions in the rabbitmq server for
> 'guest'
> and my custom account 'ga' which I gave all same permissions as 'guest'.
>
> The web site asks users to send a note to legitimateconcern at rabbitmq.comif
> it takes
> more than 2 minutes to connect.  Si I have sent a detailed note.  There
> has
> been no
> response to it.
>
> The web site says  Please join our mailing list or send questions to
> info at rabbitmq.com. We'd love to hear from you.   I've subscribed and sent
> a
> detailed
> message to the mailing list.  My email did not appear in the mailing list,
> and no
> responses came back.
>
> Nothing is working thus far, the mailing list, the feedback email, the
> rabbitmq
> connections.  This is my last attempt for anything to happen after which
> rabbitmq
> must be abandoned for lack of anything working.  More than three days of
> time is too
> much to spend into something and get nothing from it.
>
> To be clear, this message is solely intended as a reflection on my own
> inabilities
> and oversights, and nothing I am aware of is wrong with rabbitmq.com, the
> rabbitmq
> server, the documentation, the sample code, the mailing list, all of which
> is
> graciously offered at no cost, and works for others on the mailing list.
>  I
> do not
> mean to upset anyone.
>
> My only intent is to ask for a nice person to volunteer their valuable
> time
> to share
> information  with me that helps the rabbitmq server accept a connection
> from any
> client program. Java is OK, dotnet is OK, either one as you like, I'll
> work
> with
> you.  I am a C# 2.0 programmer FWIW.  Windows XP-SP2 is the operating
> system.
>
>
> Details to demonstrate the RabbitMQ inability to accept a connection.
> Maybe
> this
> info contains some clue to someone smarter than me, I don't know.
>
>
> 1. Server is launched:
>
> C:\>"C:\rabbitmq\erl5.5.5\lib\rabbitmq_server-1.3.0
> \sbin\rabbitmq-server.bat"
> RabbitMQ 1.3.0 (AMQP 8-0)
> Copyright (C) 2007-2008 LShift Ltd., Cohesive Financial Technologies LLC.,
> and
> Rabbit Technologies Ltd.
> Licensed under the MPL.  See http://www.rabbitmq.com/
>
> Logging to "C:/Documents and Settings/ga/rabbitmq//log/rabbit.log"
> SASL logging to "C:/Documents and
> Settings/ga/rabbitmq//log/rabbit-sasl.log"
>
> starting database             ...done
> starting core processes       ...done
> starting recovery             ...done
> starting persister            ...done
> starting builtin applications ...done
> starting TCP listeners        ...done
>
> broker running
>
>
>
> 2. Java sample program "Tracer" is launched:
>
> C:\rabbitmq\librabbitmq-java-1.3.0>runjava.bat com.rabbitmq.tools.Tracer
> Usage: Tracer [<listenport> [<connecthost> [<connectport>]]]
> Invoked as: Tracer 5673 localhost 5672
> com.rabbitmq.tools.Tracer.WITHHOLD_INBOUND_HEARTBEATS = false
> com.rabbitmq.tools.Tracer.WITHHOLD_OUTBOUND_HEARTBEATS = false
> com.rabbitmq.tools.Tracer.NO_ASSEMBLE_FRAMES = false
> com.rabbitmq.tools.Tracer.NO_DECODE_FRAMES = false
>
>
>
> 3. Dotnet sample program is launched:
>
> C:\rabbitmq\rabbitmq-dotnet-1.2.8025.1832-net-2.0\bin>DeclareQueue.exe
> alpeduez
> testqueue
> None of the specified endpoints were reachable
> Endpoints attempted:
>  endpoint=amqp-0-9://alpeduez:5672, attempts=1, outcome=AMQP server
> protocol
> negotiation failure: server version 0-8, t
> ransport parameters -1:-1
> Stack trace:
>   at RabbitMQ.Client.ConnectionFactory.CreateConnection(Int32
> maxRedirects,
> AmqpTcpEndpoint[] endpoints)
>   at RabbitMQ.Client.ConnectionFactory.CreateConnection(AmqpTcpEndpoint[]
> endpoints)
>   at RabbitMQ.Client.ConnectionFactory.CreateConnection(String address)
>   at RabbitMQ.Client.Examples.DeclareQueue.Main(String[] args)
>
>
>
>
> 4.  Go look again to see if Tracer saw any traffic:
>
> C:\rabbitmq\librabbitmq-java-1.3.0>runjava.bat com.rabbitmq.tools.Tracer
> Usage: Tracer [<listenport> [<connecthost> [<connectport>]]]
> Invoked as: Tracer 5673 localhost 5672
> com.rabbitmq.tools.Tracer.WITHHOLD_INBOUND_HEARTBEATS = false
> com.rabbitmq.tools.Tracer.WITHHOLD_OUTBOUND_HEARTBEATS = false
> com.rabbitmq.tools.Tracer.NO_ASSEMBLE_FRAMES = false
> com.rabbitmq.tools.Tracer.NO_DECODE_FRAMES = false
>
>
> It seems no traffic was detected during the dotnet sample program
> execution.
>
>
> 5. Do a netstat command to see if it looks like a server is really
> listening.
>
> C:\rabbitmq\rabbitmq-dotnet-1.2.8025.1832-net-2.0\bin>netstat
>
> Active Connections
>
>  Proto  Local Address          Foreign Address        State
>  TCP    alpeduez:1800          localhost:4369         ESTABLISHED
>  TCP    alpeduez:4369          localhost:1800         ESTABLISHED
>  TCP    alpeduez:1802          alpeduez:5672          TIME_WAIT
>
> C:\rabbitmq\rabbitmq-dotnet-1.2.8025.1832-net-2.0\bin>
>
>
> Yes there is something on alpeduez:5672 which is in a TIME_WAIT.  Maybe
> that's OK,
> maybe not.  I don't know what a normally working system netstat looks
> like.
> Do you
> know what a netstat returns on a working rabbitmq system installation?
>
>
> 6. I run my own C# software and attempt connection to rabbitmq.
>
> No connections are working and the error message talks about endpoints or
> protocols.
> Sorry I dont remember exactly, my bad.  The CreateConnection method on the
> factory
> is throwing the exception consistently on all input values.  I was using
> Protocol.GetFromEnviroment and passing in my host name 'alpeduez' to the
> CreateConnection method.
>
>
>
> 7.  This is the whole contents of rabbit.log
>
>
> =INFO REPORT==== 13-May-2008::12:32:09 ===
> disk_log: repairing "c:/Documents and
> Settings/ga/rabbitmq/db/rabbit-mnesia/rabbit_persister.LOG" ...
>
> =INFO REPORT==== 13-May-2008::12:32:09 ===
> Repaired persister log - 1 recovered, 0 bad
>
> =INFO REPORT==== 13-May-2008::12:32:09 ===
> Rolling persister log to "c:/Documents and
> Settings/ga/rabbitmq/db/rabbit-mnesia/rabbit_persister.LOG.previous"
>
> =INFO REPORT==== 13-May-2008::12:32:09 ===
> started TCP listener on 0.0.0.0:5672
>
> =INFO REPORT==== 13-May-2008::12:39:39 ===
> accepted TCP connection on 0.0.0.0:5672 from 192.168.1.100:1802
>
> =ERROR REPORT==== 13-May-2008::12:39:39 ===
> error on TCP connection from 192.168.1.100:1802
> connection_closed_abruptly
>
> =INFO REPORT==== 13-May-2008::12:39:39 ===
> closing TCP connection from 192.168.1.100:1802
>
>
>
> Thank you for any clues or attempts to help me get a connection to
> RabbitMQ.
>
>
> Regards,
>
> Geoffrey
>
>
>
>
>
>
>
>
>
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