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Tue, 13 May 2008
New POHMELFS release. Transactions, performance, failover.
Irish Jon Jameson (6 years of experience, really good stuff)
brings us this new POHMELFS release.
Main features include:
- Fast transactions. System will wrap all writings into transactions, which will
be resent to different (or the same) server in case of failure.
- Failover. It is now possible to provide number of servers to be used in round-robin
fasion when one of them dies. System will automatically reconnect to others and send
transactions to them.
- Performance. Super fast (close to wire limit) metadata operations over the network.
By courtesy of writeback cache and transactions the whole kernel archive can be untarred by 2-3 seconds
(including sync) over GigE link (wire limit! Not comparable to NFS).
The nearest roadmap includes:
- Full transaction support for all operations (only writeback is guarded by transactions currently,
default network state just reconnects to the same server).
- Data and metadata coherency extensions (in addition to existing commented object creation/removal messages).
- Server redundancy.
One can check out POHMELFS homepage
for more details. You can download latest release (against 2.6.25 kernel tree) from
archive or
GIT tree.
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