Re: [9fans] Venti by another name
* matt mattmob...@proweb.co.uk wrote: Hi, I'll know soon enough as I'm in the process of building a Venti store for our video files. I just wondered if anyone had done it already. I'm actually using venti for storing media files in my MCloud platform, which is used for several of my customer's portals, (eg: http://www.television-europe.eu/). But I really can't tell anything about the space saving. (one of the primary decision for venti is that it will be clustered some day ... ;-o) cu -- - Enrico Weigelt== metux IT service - http://www.metux.de/ - Please visit the OpenSource QM Taskforce: http://wiki.metux.de/public/OpenSource_QM_Taskforce Patches / Fixes for a lot dozens of packages in dozens of versions: http://patches.metux.de/ -
Re: [9fans] Venti by another name
On Wed, 2009-02-25 at 01:26 +0100, Enrico Weigelt wrote: But I really can't tell anything about the space saving. (one of the primary decision for venti is that it will be clustered some day ... ;-o) Clustered? Thanks, Roman.
Re: [9fans] Venti by another name
* Roman V. Shaposhnik r...@sun.com wrote: On Wed, 2009-02-25 at 01:26 +0100, Enrico Weigelt wrote: But I really can't tell anything about the space saving. (one of the primary decision for venti is that it will be clustered some day ... ;-o) Clustered? Yeah, one of the projects I'm working on: an clustered version of venti, which distributes the data amongst several nodes (multiple copies per block for safety as well as faster access). cu -- - Enrico Weigelt== metux IT service - http://www.metux.de/ - Please visit the OpenSource QM Taskforce: http://wiki.metux.de/public/OpenSource_QM_Taskforce Patches / Fixes for a lot dozens of packages in dozens of versions: http://patches.metux.de/ -
Re: [9fans] Venti by another name
On Wed, 2009-02-25 at 01:26 +0100, Enrico Weigelt wrote: But I really can't tell anything about the space saving. (one of the primary decision for venti is that it will be clustered some day ... ;-o) Clustered? Cloudstered? ++L
Re: [9fans] Venti by another name
I'll know soon enough as I'm in the process of building a Venti store for
our video files. I just wondered if anyone had done it already.
That kindles in me the bystander's interest. It'd be nice of you to report
back on results.
--On Monday, February 16, 2009 12:13 PM + matt
mattmob...@proweb.co.uk wrote:
Can any lossless compression scheme improve on {J,M}PEG? If multiple
streams are stored in venti then there may be some common blocks but
even that should not significantly surpass RAR algorithm's solid
archiving of the same streams. Not that I understand these things.
Only if there are shared blocks. Macro blocks in MPEG are 8x8 pixels
which makes them 32k in size. If you're lucky you might just align them
when written to Venti!
I'll know soon enough as I'm in the process of building a Venti store for
our video files. I just wondered if anyone had done it already.
I doubt there's much in it.
Matt
[9fans] Venti by another name
I came across this today http://offsystem.sourceforge.net/ It's a P2P system where data blocks are traded not files. A file becomes a set of blocks and if requested, anyone who has the block can supply the data, even if they don't possess the same file. In that way no-one is sharing copyrighted material in the large, just coincedent blocks. I've not pushed any mpeg data into venti, though I have idly wondered if there are any disk saving.
Re: [9fans] Venti by another name
On this note, Marco Peereboom has been working on epitome: http://www.peereboom.us/epitome --dho
Re: [9fans] Venti by another name
On Sat, Feb 14, 2009 at 10:34 AM, matt mattmob...@proweb.co.uk wrote: It's a P2P system where data blocks are traded not files. A file becomes a set of blocks and if requested, anyone who has the block can supply the data, even if they don't possess the same file. Sounds vaguely like Freenet. —Joel
