|
I have channeled though lvs-nat peak traffic of 40 mbit/sec to servers that
serve images of average size of 15 to 30 k on IBM x330 as the director,
without any noticeable performance hit, or director resource use. the math
is pretty simple. that website was rated at about the 800 place on www.alexa
com rating, so i would say that lvs director would cover all but the most
demanding requirements without a sweat.
at the same time, i was trying to mount a syn flood attack against the real
servers - the real servers died at about 40000 syns/second, the director
didn't even notice it. (this is a good thing (yes, i know that lvs has flood
protection mechanisms, i wasn't trying to test them) ;)
as for your questions, i would use a value of several (5 to 10) seconds to
monitor services. i personally use keepalived for that.
|
