Messages in this thread | | | Date | Sat, 14 Jun 2008 05:52:38 -0400 | From | Jeff Garzik <> | Subject | Re: [0/3] POHMELFS high performance network filesystem. First steps in parallel processing. |
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Evgeniy Polyakov wrote: > Hi. > > I'm pleased to announce POHMEL high performance network parallel > distributed filesystem. > POHMELFS stands for Parallel Optimized Host Message Exchange Layered File System. > > Development status can be tracked in filesystem section [1]. > > This is a high performance network filesystem with local coherent cache of data > and metadata. Its main goal is distributed parallel processing of data. > > This release brings following features: > * Read requests (data read, directory listing, lookup requests) balancing > between multiple servers. > * Write requests are sent to multiple servers and completed only > when all of them sent an ack. > * Ability to add and/or remove servers from working set at run-time from > userspace (via netlink, so the same command can be processed from > real network though, but since server does not support it yet, > I dropped network part). > * Documentation (overall view and protocol commands)! > * Rename command (oops, forgot it in previous releases :) > * Several new mount options to control client behaviour instead of > hardcoded numbers. > * Bug fixes.
Neat :) Thanks for protocol documentation, too. Do you plan to add write-pages in addition to write-page? Also, write-page does not appear to be documented.
Is race-across-directories race-free? That is a sticky area, see Documentation/filesystems/directory-locking in particular.
With the exception of encryption, do you think the POHMELFS client is mostly complete, at this point?
Jeff
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