[Ndn-interest] Tcp Bulk Insert Repo Insertion Protocol in NDN-repo-ng

[Chengyu Fan]

I think it is due to the packet signing.
ndnputfile signs each segment, not the whole data. Therefore, if the
segment size is small, ndnputfile has to sign more segments.

Wonder if there are efficient signing methods for big data provided in the
ndn-cxx library?

On Wed, Apr 8, 2015 at 1:24 PM, Tai-Lin Chu <tailinchu at gmail.com> wrote:

> Is this due to packet signing? or simply segmentation itself?
>
> Thanks.
>
> On Wed, Apr 8, 2015 at 10:26 AM, Chengyu Fan <chengyu at cs.colostate.edu>
> wrote:
> >
> >
> > On Wed, Apr 8, 2015 at 5:08 AM, Urs Schnurrenberger
> > <urs.schnurrenberger at unibas.ch> wrote:
> >>
> >> Hi,
> >>
> >>
> >>
> >> why not using ndnputfile? Encoding is done automatically.
> >>
> >>
> >>
> >> ndnputfile reponame ndnname filename:
> >>
> >> e.g.
> >>
> >> ndnputfile /localhost/repo-ng /ndn/ch/unibas/hello hello.txt
> >
> >
> > Yes, we tried ndnputfile. It is a little bit slow.
> > However, the segment size is 1000 by default, and takes about 30 minutes
> to
> > insert a 1.2GB file.
> > I changed the segment size to 8000 (the max NDN packet size is 8800),
> then
> > the time reduced to 4 minutes.
> >
> > I wonder if the Tcp Bulk Insert protocol can improve this more ...
> >
> > BTW, such large file will generate a lots of segments, I have to set the
> > max-packets to a larger number in repo-ng.conf.
> > However if the number is too large, repo-ng would complain "ERROR:
> > conversion of data to type "i" failed". I think it is a bug.
> >
> >>
> >>
> >> Interesting as well would be how to delete files from the repo? I still
> do
> >> it by directly manipulating the database. Seems that there is no tool
> >> around…?
> >
> >
> > I didn't see any tool for data deletion either, but the protocol
> > specification is given, so it is possible to take some time to  implement
> > it.
> >
> >>
> >>
> >>
> >> Chengyu, don't you have problems to retrieve so large files from the
> repo?
> >> I have already problems with files around 50MB. The developers told me
> that
> >> it might be a memory issue.
> >
> >
> > I don't have this problem.
> >
> >
> >>
> >>
> >>
> >> Best,
> >>
> >> Urs
> >>
> >>
> >>
> >>
> >>
> >> Von: Ndn-interest [mailto:ndn-interest-bounces at lists.cs.ucla.edu] Im
> >> Auftrag von Alex Afanasyev
> >> Gesendet: Mittwoch, 8. April 2015 02:03
> >> An: Chengyu Fan
> >> Cc: ndn-interest at lists.cs.ucla.edu
> >> Betreff: Re: [Ndn-interest] Tcp Bulk Insert Repo Insertion Protocol in
> >> NDN-repo-ng
> >>
> >>
> >>
> >>
> >>
> >> On Apr 7, 2015, at 5:01 PM, Chengyu Fan <chengyu at cs.colostate.edu>
> wrote:
> >>
> >>
> >>
> >> Okay, so the TcpBulkInsert is to push the NDN packet format encoding
> data
> >> packets into the repo.
> >>
> >> If need to insert the raw data, I must convert them into NDN packet
> format
> >> encoding in advance. Correct?
> >>
> >>
> >>
> >> Yes.
> >>
> >>
> >>
> >>
> >>
> >> On Tue, Apr 7, 2015 at 5:38 PM, Alex Afanasyev
> >> <alexander.afanasyev at ucla.edu> wrote:
> >>
> >> TcpBulkInsert is not really a protocol, rather a socket that accepts a
> >> stream of data packets.
> >>
> >>
> >>
> >> Assuming file bulk-data.tlv contains a collection of data packets in NDN
> >> packet format encoding (just piled up, one after another one), you can
> use
> >> ‘nc’ command to push them into the repo
> >>
> >>
> >>
> >> nc localhost 7376 < bulk-data.tlv
> >>
> >>
> >>
> >> —
> >>
> >> Alex
> >>
> >>
> >>
> >>
> >>
> >> On Apr 7, 2015, at 3:28 PM, Chengyu Fan <chengyu at cs.colostate.edu>
> wrote:
> >>
> >>
> >>
> >> Hi,
> >>
> >>
> >>
> >> Do anyone know the "Tcp Bulk Insert Repo Insertion Protocol" in
> >> NDN-repo-ng?
> >>
> >>
> >>
> >> We have lots of data need to insert into the repository, and each one
> >> typically contains about 1.2GB.
> >>
> >>
> >>
> >> According to the wiki
> >> (http://redmine.named-data.net/projects/repo-ng/wiki), the "Tcp Bulk
> Insert
> >> Repo Insertion Protocol" might be the right option.
> >>
> >>
> >>
> >> However, the wiki doesn't contain the protocol specification, and there
> is
> >> no tool for this protocol either ...
> >>
> >>
> >>
> >> Thanks,
> >>
> >> Chengyu
> >>
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> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
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