[Mini-NDN] [EXT] Sends next request after previously requested files have been received

[Junxiao Shi]

Hi Ritu

As we can see in frame #8, FinalBlockId is %00%12G, which means the file
has 4679 segments.
The last Interest of this file is frame #196 requesting segment %00%15. The
last Data received is frame #200 for segment %00%20.
Retrieval of the first file never finished.

This means ndncatchunks of the first file returned an error, so that the
bash script terminates and does not continue onto the next command.
As for why ndncatchunks failed, you can see that from the standard error.
It's either displayed on the screen, or you can redirect standard error to
a file and look at the that file.

Yours, Junxiao

On Tue, Sep 22, 2020 at 8:41 PM Ritu Bordoloi <bordoloi.ritu1988 at gmail.com>
wrote:

> *External Email*
> Dear Junxiao,
>
> Thank you again for your suggestion. Indeed my code was running multiple
> instances of the bash script. I resolved this issue. However, now I can
> see that only the first file has been successfully received by the host
> even though my bash script was requesting four files.
>
> Can you please tell me why the other 3 files have not been received by the
> host? I think I am still doing something wrong here.
>
> I am invoking my bash script using the following command:
>
> ndn.net.hosts[3].cmd('/home/ritu/Downloads/mini-ndn/examples/nlsr/./mytest_4_nodes
> {} {} {} {} &'.format(Reqfile1, Reqfile2, Reqfile3, Reqfile4))
>
> where Reqfile1... 4 are the files that have been requested by the host d.
>
> I am again appending my bash script below
> #!/bin/bash
> set -e
> ndncatchunks /ndn/a-site/a/$1
> ndncatchunks /ndn/a-site/a/$2
> ndncatchunks /ndn/a-site/a/$3
> ndncatchunks /ndn/a-site/a/$4
>
> Further I am also attaching pcap and dump files for your reference. Please
> do let me know your suggestions. That will be very helpful.
>
> Thank you.
>
> Kind regards,
> Ritu
>
>
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