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On Wed, 14 Jun 2006, Kai Suchomel1 wrote:
Hi another question....
The client has established a connection to the director
no. The director is a router with slightly different rules
to a normal router. There is no connection from the client
to the director.
and is routed to a RS.
yes
He starts transfering a file.
Now the RS dies (delete the entry in the ipvsadm table),
Does the Director automatically redirect the packets to another server??
no. You usually set the weight to zero, indicating that
current connections are allowed to continue. If the RS is
dead, the client will have to do the same thing as if single
machine server dies in the middle of a connection. The user
might have to hit ^C or kill the client process.
What is the director doing with these packets,that
originally belongs to the RS that has died.
You're asking what a router does if a machine downstream
dies and a client continues to send packets. There's no spec
on this and no-one really cares. The director may send back
icmp error messages. However in LVS-DR, for security you
usually don't have a route from the VIP to 0/0, so no icmp
packets can get back anyhow (unless you have a route for
icmp packets only).
Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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