Re: POHMELFS high performance network filesystem. Transactions, failover, performance.

From: Jamie Lokier
Date: Wed May 14 2008 - 17:44:15 EST


Jeff Garzik wrote:
> Definitely. "several leaders" aka partitioning is also becoming
> increasing paired with efforts at enhancing locality of reference. Both
> Google and Amazon sort their distributed tables lexographically, which
> [ideally] results in similar data being stored near each other.
>
> A bit of an improvement over partitioning-by-hash, anyway, for some
> workloads.

As with B-trees on disks, and in-memory structures, application
knowledge of locality is very much worth passing to the storage layer.

-- Jamie
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