Connection table clears and ipvsadm stops distributing the load

[Joseph Mack NA3T]

On Thu, 31 Aug 2006, Hildebrand, Nils, 122 wrote:

> We are doing load-balancing for http with DR/WLC and had a persistency of
> one hour. After we raised the persistency to 8 hours and later reduced it to
> 3 hours we ran into a strange problem:
>
> After some time "ipvsadm -Lc" does not show any connections, while all
> connections go to only one real server (the other real server is not
> contacted any longer).

people running long persistence times report weird stuff 
like this. Since it's hard to do experiments with a setup 
that takes 8hrs (or whatever) to do a test, we've never 
found out whether the problems are unique to that user or a 
bug.

You don't tell us how many connections are involved 
(millions, half a dozen?). There are explanations for what 
you see. Your clients could be coming in from an AOL like 
proxy and all be directed to the same realserver. You'd need 
to connect from clients with different IPs to check this 
out.

Otherwise I have no idea what the problem is

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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