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Re: Concurrency in an RDB

From: Pickie <keith.johnson_at_datacom.co.nz>
Date: 19 Dec 2006 12:42:01 -0800
Message-ID: <1166560921.247623.82800@a3g2000cwd.googlegroups.com>

David wrote:
<snip>
> My claim can't easily be proven true, but it should easily be falsified
> if it turns out to be wrong. You haven't yet provided an example.

This sounds reasonable, but it might not be. How many colours are required for a map?

<snip>
> I don't. I merely claim it is desirable (and in practise possible) to
> use fine-grained mutative transactions.
<snip>
> My statement was quite simple: Distributed transactions (in contrast
> to in-process transactions) have large overheads and therefore issuing
> many fine-grained transactions instead of fewer coarse-grained
> transactions can degrade performance.

<snip>

I'm confused. Are fine-grained transactions good or bad?

Regards, Keith Received on Tue Dec 19 2006 - 14:42:01 CST

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