[ndnSIM] N consumers M distinct producers

Ilya Moiseenko iliamo at ucla.edu
Wed May 21 13:35:53 PDT 2014


I believe that sequence numbers are marked with reserved symbols.
Why did you comment appendSeqNum() ? It seems to be correct way of doing it.

Ilya

On May 21, 2014, at 4:27 PM, Josh J <joshjdevl at gmail.com> wrote:

> Tracing thru gdb I find the following error being throw. Though no idea what it means? What required marker is necessary?
> 
>     {
>       BOOST_THROW_EXCEPTION (error::name::Component ()
>                              << error::msg ("Name component does not have required marker [" + toUri () + "]"));
>     }
> 
> 
> 
> On Wed, May 21, 2014 at 6:38 AM, Josh J <joshjdevl at gmail.com> wrote:
> Hi,
> 
> I'm trying to setup a scenario where there are M distinct producers 1...M. Each producer is responsible for a certain prefix /producer1 ... /producerM.
> 
> There are also N consumers which generate requests for interests ranging from /producer1 to /producerM followiing a zipf distribution.
> 
> I modified the zipfmandelbrotconsumer by changing the following line
>   Ptr<Name> nameWithSequence = Create<Name> (m_producerPrefix+boost::lexical_cast<std::string>(seq));
> 
> 
>   //nameWithSequence->appendSeqNum (seq);
> 
> https://github.com/joshjdevl/icn-cache-privacy/blob/master/extensions/ndn-consumer-zipf-prefix-mandelbrot.cc
> 
> 
> 
> I then installed a consumerapp and producerapp on each node accordingly.
> 
> https://github.com/joshjdevl/icn-cache-privacy/blob/master/ndn-topology.cc
> 
> 
> 
> The simulation runs for a very brief amount of time before receiving an error.
> 0.573765s 1 ndn.ConsumerZipfPrefixMandelbrot:GetNextSeq(): [LOGIC] p_random=0.142848
> 0.573765s 1 ndn.ConsumerZipfPrefixMandelbrot:GetNextSeq(): [DEBUG] RandomNumber=1
> 0.573765s 1 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [INFO ] seq=1
> 0.573765s 1 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [INFO ] > Interest for 1, Total: 6, face: 1
> 0.573765s 1 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [DEBUG] Trying to add 1 with +573764778.0ns. already 4 items
> 0.573765s 1 ndn.fw:OnInterest(0x1740d10, /producer1)
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:SendPacket()
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:GetNextSeq(): [LOGIC] p_random=0.926702
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:GetNextSeq(): [DEBUG] RandomNumber=8
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [INFO ] seq=8
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [INFO ] > Interest for 8, Total: 7, face: 1
> 0.576379s 3 ndn.ConsumerZipfPrefixMandelbrot:SendPacket(): [DEBUG] Trying to add 8 with +576379247.0ns. already 5 items
> 0.576379s 3 ndn.fw:OnInterest(0x1740dd0, /producer8)
> 0.576426s 0 ndn.fw:OnData(0x1722870, /producer2)
> 0.576426s 0 ndn.Consumer:OnData(0x173c580, 0x174bb40)
> terminate called after throwing an instance of 'boost::exception_detail::clone_impl<ns3::ndn::error::name::Component>'
>   what():  std::exception
> 
> 
> Is there any naming convention assumed in the routing such as /producer/1 /producer/2 instead of being able to route to /producer1 /producer2 ?
> 
> The gdb backtrace is posted here
> 
> 
> https://gist.github.com/joshjdevl/80bcc0af2fab262120d0
> 
> Thanks,
> Josh
> 
> 
> 
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