[Ndn-interest] Ndn-interest Digest, Vol 55, Issue 16

[Ishita Dasgupta]

Hi All,

Just so that this is helpful to someone in future: This issue was solved by
setting a very high freshness period (Long enough that the data is still
fresh when cache is fetched) on the data being served by the publisher.

On Fri, Oct 26, 2018 at 10:32 AM Ishita Dasgupta <ishita.dasgupta at gmail.com>
wrote:

> Hi All,
>
> As a follow up to the previous email, I also edited the
> forwarding strategy in cs and still no cache hits. Here is what my strategy
> list looks like. Rest of it is similar to in the previous email.
>
>>
>>
>>
>>
>> *prefix=/
>> strategy=/localhost/nfd/strategy/best-route/%FD%05prefix=/localhost
>> strategy=/localhost/nfd/strategy/multicast/%FD%03prefix=/ndn/broadcast
>> strategy=/localhost/nfd/strategy/multicast/%FD%03prefix=/localhost/nfd
>> strategy=/localhost/nfd/strategy/best-route/%FD%05prefix=/edu/umass
>> strategy=/localhost/nfd/strategy/best-route/%FD%05*
>
>
> It would be really helpful if someone could provide an insight as to what
> I might be missing here? My individual file sizes are not more than the
> cache size (256MB).
>
> Ishita
>
> On Thu, Oct 25, 2018 at 3:00 PM <ndn-interest-request at lists.cs.ucla.edu>
> wrote:
>
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>> Today's Topics:
>>
>>    1. No cache hits (Ishita Dasgupta)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 24 Oct 2018 19:37:56 -0400
>> From: Ishita Dasgupta <ishita.dasgupta at gmail.com>
>> To: ndn-interest at lists.cs.ucla.edu
>> Subject: [Ndn-interest] No cache hits
>> Message-ID:
>>         <CAKxF5ohXNfaRa5fK=CuWE6QHWYV_Cu81BxgWw9+wbTqzANS5=
>> w at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi All,
>>
>> After multiple interests are being sent for the same data, I still have 0
>> cache hits. I have set my cache byte size to 32768 bytes (256 MB) and
>> restarted the nfd daemon but I simply don't see anything being fetched
>> from
>> the cache. Do I have to add the prefix for the interest in question in the
>> forwarding strategy section of the nfd.conf file? Or some flag that I have
>> to turn on?
>> *This is what nfdc-cs gives me:*
>>
>> >
>> >
>> >
>> >
>> >
>> >
>> > *CS information:  capacity=32768     admit=on     serve=on
>> > nEntries=32768     nHits=0   nMisses=604696 *
>>
>> *This is what the CS section in nfd.conf looks like:*
>>
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > *The tables section configures the CS, PIT, FIB, Strategy Choice, and
>> > Measurementstables{  ; ContentStore size limit in number of packets  ;
>> > default is 65536, about 500MB with 8KB packet size  cs_max_packets
>> 32768  ;
>> > Set the forwarding strategy for the specified prefixes:  ;   <prefix>
>> > <strategy>  strategy_choice  {    /
>> >  /localhost/nfd/strategy/best-route    /localhost
>> > /localhost/nfd/strategy/multicast    /localhost/nfd
>> > /localhost/nfd/strategy/best-route    /ndn/broadcast
>> > /localhost/nfd/strategy/multicast  }  ; Declare network region names  ;
>> > These are used for mobility support.  An Interest carrying a Link object
>> > is  ; assumed to have reached the producer region if any delegation
>> name in
>> > the  ; Link object is a prefix of any region name.  network_region  {
>>   ;
>> > /example/region1    ; /example/region2  }}*
>>
>> *Sample data interest looks like:* INTEREST:
>> /edu/umass/download/<data-path
>> on the producer>
>>
>> Ishita
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>> End of Ndn-interest Digest, Vol 55, Issue 16
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