Sent from my iPhone
On Jun 17, 2010, at 4:49 PM, Dave Watts dwa...@figleaf.com wrote:
In other applications I routinely use cfcontent to serve protected
files on
extranet applications however the traffic ( 10-20 files/day) is
nowhere near
as rigorous as will be required here with 12,000 per day of 40Meg
average
per file. I am considering serving the files now through cfcontent
via HTTP
instead of FTP for a couple of reasons. 1) because most Internet
Security
programs block FTP and we have to help people (mostly kids) open
the port
and 2) to prevent direct linking to the files because this endeavor
is
funded by ads on the website (and my wallet).
I know the most efficient way to serve this quantity and size of
files is
via ftp but what I don't know is what is required by the various CF
engines
AdobeCF, OpenBD, Bluedragon, Ralio to serve up the same via HTTP.
Will our
new server hardware handle that kind of HTTP file traffic (I
suspect so),
will OpenBD/Tomcat be up to the task or will I need a different
CFML engine?
Essentially what I need to know is what it would take to routinely
serve
that many/size files through the CF engine. I don't want to go down
this
road and find that people are having problems downloading because
the CF
engine / Web server can't keep up. Has anyone had experience with
this and
can you offer some advice?
My advice for you would be to avoid using CFCONTENT for this, as it's
really not designed for this. Each request using CFCONTENT will use
one of your threads, I think, and there are decent alternatives.
The alternative I'd recommend would be the use of temporary symlinks.
When someone is granted access to a file, you'd create a symlink for
that file, pointing to a web-accessible location, then let the user
download it via HTTP. Sometime after, you'd delete the symlink.
Exactly how long after, I'm not sure - that would be a balance of
convenience to the user (in case they don't download it immediately)
versus the potential for abuse (the user provides the link to someone
else).
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
http://training.figleaf.com/
Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on
GSA Schedule, and provides the highest caliber vendor-authorized
instruction at our training centers, online, or onsi
I would highly recommend using a Content Delivery Network like Mosso
Files to store your files, then you can symlink to them by passing
headers as a re-direct. This way you don't have the overhead of
distribution, hardware and requests... You pay a small fee per month
for transfer and storage. Do a cost analysis, including your time and
sys admin time in upgrades to handle all of this badwidth. Check out
the CDN writeup on openboxitsolutions.com for some real life examples
and price savings.. Feel free to reach out to me, as well for more
information. I highly recommend not hosting static delivery
especially to the extent you're looking at without weighing CDN options.
William Attwood
Systems Engineer
Software Engineer
801-859-2987
~|
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