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Takeo Shibata wrote:
>
> Hi I just construct the clustering environment
> following
> "My example for testing virtual server via tunneling"
> from
> http://www.linuxvirtualserver.org/VS-IPTunneling.html
>
> Conveniently, Linux 8 has already has ipvsadm and
> kernel is build for load balancing using ip tunnel.
there is no such thing as Linux "8". You are probably talking
about the version of a distribution of Linux.
> It works fine.
> But only thing is that
> load balancer cannnot detect if the real server is working fine or not.
what do you mean by "working fine"?
do you mean whether it's handing the packets forwarded by the director?
If this is what you mean see
http://www.linuxvirtualserver.org/Joseph.Mack/HOWTO/LVS-HOWTO-22.html#ss22.12
> Whether the real server is on or off, whether connection between load
> balancer and a real server
> is ok or not, the real server try to forward the request to dead server.
>
> Are ther any way or algorizm to check if server specific port can be
> connected and
> select the server?
http://www.linuxvirtualserver.org/Joseph.Mack/HOWTO/LVS-HOWTO-22.html
Joe
--
Joseph Mack PhD, Senior Systems Engineer, SAIC contractor
to the National Environmental Supercomputer Center,
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
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