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Bittorrent To Replace Standard Downloads?
Max Sayre writes "Have you ever tried to download an operating system update only to have it fail and have to start all over? What about patches for your favorite games? World of Warcraft already uses Bittorrent technology as a way to distribute large amounts of content at a lower cost to the company and faster speeds to all of their clients. So why haven't they replaced the standard downloading options built into any major OS? Companies like Opera are including the downloading of torrents in their products already and extensions have been written for Firefox to download torrents in-browser. Every day Bittorrent traffic is growing. Sites like OpenBittorrent already exist and DHT doesn't even require a tracker. So why isn't everyone doing it? Is it finally time to see all downloads replaced with Bittorrent?"
Combine this with social networking to allow/deny access to your files and I think you've got a game changer. Files which require no server, and which are unknown/unavailable to anyone who doesn't need to know about them. I could share my mp3 collection or movie collection with only my friends list, which would be much more along the lines of fair use (like tape trading).
1) because I'm a leech.
2) because I don't want legal liability FOR DISTRIBUTING if I download a file that unknown to me is illegal, e.g. a software package from overseas that someone inserted illegal-in-my-country pornography into the binary. Yeah, I'll take the risk for possession but not for distribution.
3) because my employer's lawyer made me say #2 when it comes to company machines.
4) because I prefer to get my bits from the official location. Yea, I know a checksum should be good enough but I'm old school here.
Seriously though, I can see torrents overtaking web- and ftp- downloads as the primary method for distributing large, popular files. However, there will always be customers who refuse to share and who refuse to get data from any source that doesn't have a reputation for quality and isn't blessed by the original publisher.
Oh, and seriously, I'll be fine using torrents to download things like well-known linux distros. I trust modern checksums. I probably won't use them for low-demand files or smaller files though.
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I would like a solution that combines metalinks (one file that contains multiple urls for a download plus the checksum) with Bittorrent.
A client could start a http download from one server, and a bittorrent that requests pieces for the latter chunks. You can also make multiple http request with a offset these days, on another http server or the same one.
This could even be built in magically into http browsers: if the file size is > 50MB, ask the cloud if there are nodes for the given url. That is provided you have a checksum like with metalinks. Appearantly metalink already features this possibility: http://www.metalinker.org/
NB: The message above might reflect my opinion right now, but not necessarily tomorrow or next year.
Hell, I'm on Shaw Cable in Canada, and if I don't limit my upload bandwidth to 5 kb/s, my download bandwidth drops to sub-50 kb/s. But if I do limit it to 5 kb/s, then download speeds go way up to over 200 kb/s.
And yes, they advertise that I should be getting an order of magnitude greater speed than this...
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Say you've got a CD or DVD that's scratched, or an .iso you spent forever downloading via ftp and discovered to your dismay was corrupted. Assuming a bit-identical image is available online via .torrent, you can 'repair' your data without having to download the whole thing all over again:
Start your bittorrent app and begin downloading a new copy of the image you need. Immediately stop the download and exit your bittorrent app. An .iso file (incomplete, of course) will have been created in the destination folder.
Now rip your [damaged] disc to hard drive, creating an [obviously corrupted] .iso. Copy/paste that .iso into bittorrent's download folder, overwriting the existing .iso.
Fire-up bittorrent and begin your download once again. Bittorrent will analyze the corrupted .iso and immediately download the bits needed to repair (i.e. complete) it. In most cases this will only take a few seconds, even over dial-up, due to the insignificant amount of data usually needed (except, of course, in the event of a heavily scratched disc, which can also take a long time to rip in the first place; having a high-quality optical drive with good firmware and good optics certainly couldn't hurt).
This is spot on.
WoW (and other MMOs) needs torrents, because they have an very high to extremely high burst ratio. When a new patch is deployed for Linux it needs to propagate out to various distributions, people need to start packing it and then end users auto update will pick it up eventually. This means it's often distributed over time. When WoW deploys a new patch, they have 10 million people trying to get it at once in order to be first in new instances. Even the big distributors have trouble coping with this - and over a short period of time the need for bandwith will drop to very low levels as people are getting up-to-date, so there is no financial incentive for Blizzard to invest in the hardware to cope with deployment.