[rabbitmq-discuss] Connection problems with Rabbitmq 1.4.0

Matthias Radestock matthias at lshift.net
Thu Nov 27 14:05:36 GMT 2008


Maarten Engelen wrote:
> The following output came back from the Tracer:
> 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
> java.io.EOFException
>         at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:264)
>         at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:111)
>         at com.rabbitmq.tools.Tracer$DirectionHandler.readFrame(Tracer.java:167)
>         at com.rabbitmq.tools.Tracer$DirectionHandler.doFrame(Tracer.java:198)
>         at com.rabbitmq.tools.Tracer$DirectionHandler.run(Tracer.java:231)
>         at java.lang.Thread.run(Thread.java:613)

Looks like tracing at the AMQP level isn't getting us anywhere :(

So let's try tracing at the network level. You will need to have tcpdump 
installed and be able to get root privileges. Run
   sudo /usr/sbin/tcpdump -i lo dst port 5672 -w trace.pcap
then run TestMain and send me the resulting trace.pcap.


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