Re: A proposal for a General Clustering Framework

[Greg Lindahl <lindahl@conservativecomputer.com>]

On Tue, Jun 05, 2001 at 10:09:59PM -0600, Alan Robertson wrote:

> This ticked off a minor flame war the last time I mentioned it, but
> heartbeat distributes basic load information with every packet.  It's only a
> few bytes, and compared to the overhead in the RPC-XML format, a very small
> amount of data indeed ;-)

That's fine as long as pub/sub is the interface presented to higher
layers. I may or may not want to transmit load info as frequently as
heartbeats; what you're saying is that using this heartbeat+info
module means that I get another choice.

The flamewar last time was from people saying THEY didn't want to
transmit info that way. Fine, that's a policy issue, not a mechanism
issue. One of the slogans of Legion, a distributed OS that I used to
work on, is "mechanism, not policy!"

-- greg

Linux-cluster: generic cluster infrastructure for Linux
Archive:       http://mail.nl.linux.org/linux-cluster/