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* [0/3] POHMELFS: the new release. Extended attributes.
@ 2008-10-23 18:54 Evgeniy Polyakov
  2008-10-23 18:56 ` [1/3] POHMELFS: Documentation Evgeniy Polyakov
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Evgeniy Polyakov @ 2008-10-23 18:54 UTC (permalink / raw)
  To: linux-kernel; +Cc: linux-fsdevel, netdev


I'm pleased to announce the new POHMELFS release.

Short changelog:
 * Extended attributes.
 * Distributed locks for metadata updates.
 * Bug fixes and cleanups ( i n c l u d i n g w h i t e s p a c e s ! ).

POHMELFS is a very high performance parallel network filesystem with
local coherent cache of data and metadata. Its main goal is distributed
processing of the data.

Features supported by POHMELFS:
 * Locally coherent cache for data and metadata with (potentially) byte-range locks.
 	Since all Linux filesystems lock the whole inode during writing, algorithm
	is very simlpe and does not use byte-ranges, although they are sent in
	locking messages.
 * Completely async processing of all events (hard and symlinks are the
	only exceptions) including object creation and data reading and
 * Flexible object architecture optimized for network processing. Ability
	to create long pathes to object and remove arbitrary huge 
	directories in single network command.
 * High performance is one of the main design goals.
 * Very fast and scalable multithreaded userspace server. Being in
	userspace it works with any underlying filesystem and still is much
	faster than async in-kernel NFS one.
 * Transactions support. Full failover for all operations. Resending
	transactions to different servers on timeout or error.
 * Client is able to switch between different servers (if one goes down,
	client automatically reconnects to second and so on).
 * Client parallel extensions: ability to write to multiple servers and
	balance reading between them.
 * Client dynamical server reconfiguration: ability to add/remove servers
	from working set in run-time.
 * Strong authentification and possible data encryption in network channel.
 * Extended attributes support.

POHMELFS roadmap now includes distributed and parallel facilities of the

1. POHMELFS homepage.

2. POHMELFS archive.

3. GIT trees.

4. Development status.

	Evgeniy Polyakov

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2008-10-27 16:17 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-10-23 18:54 [0/3] POHMELFS: the new release. Extended attributes Evgeniy Polyakov
2008-10-23 18:56 ` [1/3] POHMELFS: Documentation Evgeniy Polyakov
2008-10-27 15:05   ` Michael Kerrisk
2008-10-27 16:17     ` Evgeniy Polyakov
2008-10-23 18:56 ` [2/3] POHMELFS: Core Evgeniy Polyakov
2008-10-23 18:57 ` [3/3] POHMELFS: VFS changes (2 exports) Evgeniy Polyakov

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