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VideoCache Hacks

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Version 1.9.9 is out. We have added support for Youtube mobile videos, Facebook, AOL and MySpace videos as well. Fixed caching issues for some already supported websites. Options to control cache directory selection algorithm, bandwidth usage by videocache, etc. More robust videocache scheduler with a lot more options and features. Have a look at changelog for more details. If you have purchased Videocache in last one year, Contact Us to claim your free upgrade. Please mention the email address using which you purchased Videocache. New users proceed to Pricing Page right now, secure your copy and enjoy caching :-) Also, check our new and simplified upgrade policy :-)

Double Bandwith

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4 replies [Last post]
3 May, 2010 - 15:29
till79
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Joined: May 3 2010
Double Bandwith
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Hi
I have some strange Peaks in my server´s bandwith usage: when a user starts watching a youtube-video the input bandwith from ISP is twice high than the output bandwith to user. It seems that user´s browser bypassing videocache and loads directly (but through videocache). Videocache starts an own download too and stores the video in his cache. Videocache caches properly and serves right when a video is requested for a second time.
Double-bandwith-phenomena comes only when requesting new videos.

Is that normal?

Every video is requested sometimes for 3-4 times for one user request.
Logfile:
http://pastebin.com/SrfsFS21

So it´s not really saving bandwith...

Videocache 1.9.4 was installed with the installation-guide from this website. No own changes of ACL or something - and no forward-proxy. (OS: OpenSuse 11.2)

Do you have an idea to solve this?
Thanks for help!
Till

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6 May, 2010 - 11:50
#1
admin's picture
admin
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Joined: Nov 2 2008

Hi!

The video is not downloaded everytime you see a URL_HIT line in the videocache log. A video is downloaded and cached by videocache only once if its not there in the cache already.

Several URL_HIT lines are because of the several request sent from youtube video page whenever user browses a video. Check corresponding squid access.log entries and you'll see that it also has several entries for the same video.

There is an option hit_threshold in videocache.conf to tweak this. Please have a look at that.

Thank You!

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21 December, 2011 - 06:26
#2
samsoft08 (not verified)

Yes , I totaly agree with till 79 , video cache is not saving bandwidth at all , cause it's downloading every new video with the max speed available , and we all know that there is always new videos !!!
lets say a network of 50Mbps max bandwidth , we can easily see that videocache is eating 20Mbps or more for downloading and saving the videos in the cache drives , inspite of the limited user speed .
lets say a 512kbps download limit user is viewing youtube video without video cache , the max bandwidth that video will take is 512kbps , but with videocache it may reach > 2Mbps or more !!
there should be a solution for this old problem so that the videocache become a real bandwidth saver instead of bandwidth predator !!!

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21 December, 2011 - 15:23
#3
admin's picture
admin
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Joined: Nov 2 2008

Hi Samsoft,

You are using version 1.9.2 which is probably 2 or more years old. Please don't judge the current version based on your experience with an age old version. Videocache has come a long way since then and we addressed this issue long back. Please use the latest version and share you experience :-)

Thank You!

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21 December, 2011 - 15:30
#4
SAMSOFT08 (not verified)

Hi

Admin you are correct , i sent you an email requesting WU details , i need to send payment today please ..

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