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https://issues.apache.org/jira/browse/PROTON-1809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16411050#comment-16411050
 ] 

Radim Kubis edited comment on PROTON-1809 at 3/23/18 9:12 AM:
--------------------------------------------------------------

Strange thing is that _open_ frame (with setting max-frame-size to 4294967295) 
looks the same as without setting max-frame-size.
{code:java}
-> @open(16) [container-id="<id>", channel-max=32767]{code}


was (Author: rkubis):
Strange thing is that _open_ frame (with setting max-frame-size to 4294967295) 
looks the same as without setting max-frame-size.

 
{code:java}
-> @open(16) [container-id="<id>", channel-max=32767]{code}

> [python, ruby] Unable to receive messages when max-frame-size is set to more 
> than 2^20
> --------------------------------------------------------------------------------------
>
>                 Key: PROTON-1809
>                 URL: https://issues.apache.org/jira/browse/PROTON-1809
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: python-binding, ruby-binding
>    Affects Versions: proton-c-0.22.0
>         Environment: RHEL 7 x86_64
>            Reporter: Radim Kubis
>            Assignee: Alan Conway
>            Priority: Major
>
> *Python:*
> {code:java}
>   def on_session_init(self, event):
>      event.transport._set_max_frame_size(VALUE)
> {code}
> I noticed that the receiver is not able to receive messages when the value 
> for max-frame-size is larger than 2^20 (1048576) bytes (remote_max_frame_size 
> is 4294967295). I'm not really sure if that is expected. This may be 
> reproduced when adding the code above ie.: to simple_recv.py.
> Note: This is not a good use case as setting the max-frame-size in 
> on_session_init is really too late. But given that it is too late to set the 
> max-frame-size, I would expect it won't have any effect on the client.
>  
> *Ruby:*
> From [https://github.com/rh-messaging/cli-proton-ruby] 
> [cli-proton-ruby|https://github.com/rh-messaging/cli-proton-ruby]
> {{cli-proton-ruby-receiver -b <broker> -c <msg_count> --log-msgs dict 
> --conn-max-frame-size 1048577}}
> Receiver is stuck.



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