FC2 bittorrent servers: send MD5SUM first
John Reiser
jreiser at BitWagon.com
Thu Feb 12 23:36:24 UTC 2004
William Hooper wrote:
> John Reiser said:
> [snip]
>
>>All of this depends on the bittorrent clients+servers transfering a whole
>>directory file-by-file, instead of as random pieces from all the files.
>
> [snip]
>
> But this isn't how Bittorrent works. It does random pieces so that
> everyone won't be after the same piece at the same time ... [snip]
>
> http://bitconjurer.org/BitTorrent/protocol.html
Using bittorrent-3.3-0.fdr.2.fc1 as client for FC2 test 1 from
http://torrent.dulug.duke.edu/FC2-test1-binary-i386.torrent
I observe that FC2-test1-i386-disc1.iso is the only file which
receives data for the first 4 hours, as its length grows to
662831104 bytes. Then only -disc2.iso grows for the next several
hours [up to the posting of this message]; -disk3 and -disk4 and
MD5SUM are still at 0 bytes. So the observed behavior
definitely is _not_ random across all files in the directory.
In such circumstances, it would be handy to have useful partial
results, such as -disk1 complete and checkable via MD5SUM.
--
John Reiser
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