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

From: Evgeniy Polyakov
Date: Wed May 14 2008 - 15:39:20 EST


On Wed, May 14, 2008 at 03:03:40PM -0400, Jeff Garzik (jeff@xxxxxxxxxx) wrote:
> >Well, it depends... If we are talking about single node perfromance,
> >then any protocol, which requries to wait for authorization (or any
> >approach, which waits for acknowledge just after data was sent) is slow.
>
> Quite true, but IMO single-node performance is largely an academic
> exercise today. What production system is run without backups or
> replication?

If cluster is made out of 2-3-4-10 machines, it does want to get maximum
single node performance. But I agree that in some cases we have to
sacrifice of something in order to find something new. And the larger
cluster becomes, for more things we can close eyes on.

--
Evgeniy Polyakov
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