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If I setup a 2 real-server VS-DR LVS with persistence,
ipvsadm -A -t $VIP -p -s -rr
ipvsadm -a -t $VIP -R $realserver1 $VS_DR -w 1
ipvsadm -a -t $VIP -R $realserver2 $VS_DR -w 1
as expected I can connect to any service on the
real-servers, always getting the same real-server.
If I now add an entry for telnet to both real-servers,
ipvsadm -A -t $VIP:telnet -s -rr
ipvsadm -a -t $VIP:telnet -R $realserver1 $VS_DR -w 1
ipvsadm -a -t $VIP:telnet -R $realserver2 $VS_DR -w 1
I can telnet to both real-servers in turn as would be
expected for an LVS serving only telnet, but all other
services go to the same first real-server (ie all
but telnet appear persistent).
I take it that the director is persisting all ports
except those that are explicitely set as non-persistent.
I expected that one of these sets of ipvsadm commands would
overwrite the other. It seems that persistent and non-persistent
connections can be made at the same time.
Is this by design and going to stay this way?
Joe
--
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center,
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
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