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Date: Wed, 14 May 2008 03:16:56 +0200 From: Florian Wiessner <ich@...z-guru.de> To: Evgeniy Polyakov <johnpol@....mipt.ru>, Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: POHMELFS high performance network filesystem. Transactions, failover, performance. Hi, Jamie Lokier wrote: > > Fwiw, I've been working on what started as a distributed database that > is coming to be a filesystem too. It has many qualities of both, > hopefully the best ones. I'm aiming for high LAN file performance > similar to what you report with POHMELFS and would expect from any > modern fs, while also supporting database style transactions and > coherent queries, in a self-organising distributed system that handles > LAN/WAN/Internet each at their best. Mention of Paxos stirred me to > reply - a relative of that is in there somewhere. I have a long way > to go before a release. > > If anyone is working on something similar, I would be delighted to > hear from them. > > It scares me that I'm actually trying to do this. But very exciting > it is too. > > It seems there's quite a bit of interesting work on Linux in this area > right now, with BTRFS and CRFS too. I am currently working on mysqlfs which is a fuse fs which can be used in conjunction with mysql-ndb cluster. You can find the details here: http://sourceforge.net/projects/mysqlfs/ and a howto (in german, though) here: http://www.netz-guru.de/2008/04/03/mysqlfs-mit-mysql-ndb-cluster-als-verteiltes-dateisystem/ It is working quite well, but still lacks of caching which makes it slow if your connection between the DB-servers have high latency/many hops. I don't know BTRFS nor CRFS or POHMELFS but i will take a look at them. Hope you'll find that usefull. -- Florian Wiessner -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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