Dan Stromberg wrote:
On Tue, 2005-06-07 at 20:54 -0400, Paul Clements wrote:
What it is about active/passive that is so much easier to implement than active/active?
There's nothing that difficult about active/active, assuming you're talking about the servers operating on separate (or static) data. What's difficult is the cluster filesystem. Those tend to be big pieces of low-level (read, kernel) code, and they require a distributed lock manager and a membership model, which are also generally implemented in-kernel.
Of course, without knowing the context of the speaker's reference to this, it's hard to say exactly what he meant or if it's even remotely related to what I'm talking about... :)
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