Re: [9fans] FileServer grid

[Enrico Weigelt <weigelt@metux.de>]

* Giacomo Tesio <giacomo@tesio.it> wrote:

Hi,

> I'd like to move our softwares to Linux + Apache (where mounting a 9p
> fileserver would be easy), but actually it's a Windows + IIS.

my serious condolescense ;-)

> But what if a node of the grid goes down? There would be a way to keep
> files in it replicated in other cpu node?

I'm not a Plan9 expert, but I dont know if there's already a (working)
really distributed filesystem on Plan9. You can run multiple fossil
instances from different machines in the them venti, but the venti itself
isnt distributed, neither can the fossils directly synchronize, IMHO.

Actually, I'm working on something like that:

A) an distribute version of venti (not really venti, but the same idea,
and hopefully compatible w/ it ;-o) - it not just stores blocks locally,
but can also ask its peers for blocks and push own blocks to them (there
will also be some TTL or GC mechanism to kick off stale data).

B) an distributed filesystem which stores all data in venti and just
synchronizes the head pointers (root dirs or heavily changing files)
directly with its neighbours.

(venti nodes and fileservers could also sit on different machines)

There's nothing usable yet, but perhaps you'd like to join ?


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/
---------------------------------------------------------------------