[rabbitmq-discuss] Just publishing messages causes rabbit_writer:mainloop to hang and simultaneous pub problem

Mon Apr 14 18:59:37 BST 2008

Here are the files.  I think problem maybe how the Payload in amqp_async_pub
is assigned setup.  I maybe wrong.

Joe

On Mon, Apr 14, 2008 at 11:39 AM, Ben Hood <0x6e6562 at gmail.com> wrote:

> Hi Joe,
>
> Could you send the complete source code of the test that causes these
> problems so that we can have a look at this, please?
>
> Thx,
>
> Ben
>
> On 14 Apr 2008, at 16:20, Joe Lee wrote:
>
> I tried to send messages sequentially to a single rabbitmq server running
> on 127.0.0.1.  After sending messages around 32000, erlang client node
> publishing the message crashed.  When I looked at the crash dump, I see
> close to 32767 rabbit_writer:mainloop/1 process still in waiting status.  I
> am not sure why so many rabbit_writer:mainloop processes are still hanging
> around.  Furthermore, I started another node to get published message from
> rabbitmq server, rabbitmq server sends basic.get_empty.
>
> crash_dump.erl says:
> Maximum number of Erlang Process has reached 32768
>
> Process status in erlang crash dump:
>
> <0.32765.6>    rabbit_writer:mainloop/1    Waiting    136    233    0
> <0.32766.13>    rabbit_writer:mainloop/1    Waiting    132    233    0
> <0.32767.1>    rabbit_writer:mainloop/1    Waiting    136    233    0
>
>
> I tried spawning 3 erlang processes simultaneously to publish message
> using pmap to a single rabbitmq_server running on 127.0.0.1 and rabbitmq
> server throws badarg error.  Here is the error below:
>
> =ERROR REPORT==== 14-Apr-2008::19:43:23 ===
> Error in process <0.68.0> on node 'test at home' with exit value:
> {badarg,[{erlang,size,[1]},{rabbit_binary_generator,build_content_frames,5},{rabbit_binary_generator,build_simple_content_frames,3},{rabbit_writer,assemble_frames,4},{rabbit_writer,internal_send_command_async...
>
>
>
> =ERROR REPORT==== 14-Apr-2008::19:43:23 ===
> Error in process <0.70.0> on node 'test at home' with exit value:
> {badarg,[{erlang,size,[3]},{rabbit_binary_generator,build_content_frames,5},{rabbit_binary_generator,build_simple_content_frames,3},{rabbit_writer,assemble_frames,4},{rabbit_writer,internal_send_command_async...
>
>
>
> =ERROR REPORT==== 14-Apr-2008::19:43:23 ===
> Error in process <0.69.0> on node 'test at home' with exit value:
> {badarg,[{erlang,size,[2]},{rabbit_binary_generator,build_content_frames,5},{rabbit_binary_generator,build_simple_content_frames,3},{rabbit_writer,assemble_frames,4},{rabbit_writer,internal_send_command_async...
>
>
> Have a look into this one: closed
> Have a look into this one: closed
> Have a look into this one: closed
> (test at home)2>
>
> I am not sure what these errors mean.  Can someone tell me what I am doing
> wrong?
>
> Thank you,
> Joe
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