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From Gordon Sim <g...@redhat.com>
Subject Re: Message size and authentication
Date Thu, 16 Apr 2009 20:10:59 GMT
Stefan Aeschbacher wrote:
> Gordon Sim wrote:
>>  Stefan Aeschbacher wrote:
>>> I observed the following behaviour with the C++ broker on FC10 (with
>>> qpidd installed via yum and also a svn co from today). If I try to
>>> send a message with data bigger than ca. 64KB, the call to
>>> session.messageTransfer blocks. If I disable authentication with
>>> "--auth no",  messages of any size (tested up to 10MB) pass easily as
>>> expected.
>>>
>>> I used the "direct" example with a small modification to generate
>>> messages of different sizes (e.g. for (int j=0; j<165536; j++)
>>> message_data << "c";) to test this. With j<65495 as limit to fill
>>> message_data, qpidd even crashes.
>>>
>>> Is this a known/reproducible issue?

Hi Stefan,

Sorry for the delayed response.

 From the trace I see you are using digest-md5 and a sasl negotiated 
security layer. I haven't tried digest-md5 myself yet, but it looks like 
you have uncovered a bug, probably somewhere in the security layer support.

I've raised a JIRA to track this:

https://issues.apache.org/jira/browse/QPID-1819

--Gordon



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