Downloading large updates and builds in PNG

[Carol Lerche]

It would be a good alternative to have, although we know various ISPs (e.g.
comcast) are interfering with bittorrent, so it has good and bad sides.

On Mon, Jun 9, 2008 at 5:19 PM, Wade Brainerd <wadetb at gmail.com> wrote:

> Would it be worth setting up a BitTorrent tracker for builds?
>
> BitTorrent is very reliable, excellent at resuming, doesn't require command
> line use, and can take advantage of local seeds.
>
> Best,
> Wade
>
> 2008/6/9 Carol Lerche <cafl at msbit.com>:
>
> Here is what I did when I was fighting battles with an unreliable
>> connection a few months ago.  (It doesn't solve the cost of downloading, but
>> it does solve the lost connection problem).  Use
>>
>> wget -c url-of-the-wanted-file
>>
>> This command line program will allow you to resume the download again and
>> again when the inevitable happens and the connection is lost.  If you find
>> that it downloads more reliably if you limit the bandwidth, there is another
>> option to set a rate limit, namely:
>>
>> wget --limit-rate=20k  -c url-of-the-wanted-file
>>
>> (the rate is given in bytes per second, so the above example is 20,000
>> bytes per second).
>>
>> Living at the far end of the DSL reaches, wget is my favorite program!
>>
>> Regards,
>>
>> Carol Lerche
>>
>>
>> On Mon, Jun 9, 2008 at 12:29 AM, James Cameron <quozl at laptop.org> wrote:
>>
>>> No, FTP is not more reliable, if you have a problem with HTTP downloads
>>> of the image you will have the same problems with FTP.
>>>
>>> Yes, it can be made available in smaller chunks, but it is best to
>>> download it with a restartable downloader, which recovers from
>>> interruptions.  wget on Linux can do this, as can rsync.  There are
>>> restartable downloaders available for other operating systems.  Ability
>>> to restart at last known point after an interruption is inherent in the
>>> HTTP, FTP and rsync protocols.  But many HTTP clients do not use the
>>> feature.
>>>
>>> Yes, there is a better way of making new builds and updates available,
>>> and that is the olpc-update mechanism.  It restarts from where it was
>>> disconnected as well, since it uses rsync.
>>>
>>> --
>>> James Cameron    mailto:quozl at us.netrek.org     http://quozl.netrek.org/
>>> _______________________________________________
>>> Devel mailing list
>>> Devel at lists.laptop.org
>>> http://lists.laptop.org/listinfo/devel
>>>
>>
>>
>>
>> --
>> "Always do right," said Mark Twain. "This will gratify some people and
>> astonish the rest."
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>>
>>
>


-- 
"Always do right," said Mark Twain. "This will gratify some people and
astonish the rest."
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