[Spread-users] Re: SP_scat_multicast not sending the entire message

Jonathan Stanton jonathan at cnds.jhu.edu
Fri Apr 1 08:39:27 EST 2005

I've committed a fix for short-writes in libspread to the Spread 3.17 
branch of the cvs tree. It will be included in the next version. If you 
want to test it, make sure to check out the 3.17 branch which is called 
"branch_3_17" as the HEAD has many other changes we are working on. 



On Sun, Feb 27, 2005 at 03:20:42PM -0500, Tudor Dumitras wrote:
> Yes, I have observed this in practice, but I am not yet sure how to 
> reproduce it.
> Tudor
> Taj Khattra wrote:
> >On Fri, 25 Feb 2005 21:01:52 -0500, Tudor Dumitras <tdumitra at ece.cmu.edu> 
> >wrote:
> >
> >>What does it mean when SP_scat_multicast() returns a positive number
> >>smaller than the size of the message that it is trying to send? Under
> >>what circumstances can this situation occur?
> >
> >
> >it means that one or more of calls to send() in
> >SP_internal_multicast() did not transmit all its bytes (and didn't
> >fail either) - SP_internal_multicast() does not seem to check for
> >this.
> >
> >i think this would imply some sort of kernel network stack error or
> >kernel resource shortage.  have you observed this in practice?
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Jonathan R. Stanton         jonathan at cs.jhu.edu
Dept. of Computer Science   
Johns Hopkins University    

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