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Ooops, sorry for the formatting...
I re-post in a more "readable" fashion...
I installed LVS with VS-NAT some weeks ago with to real servers (mail servers)
and it works properly but under some conditions, when the load increase I
sometimes got a "kernel: IP_MASQ: ip_masq_new(proto=UDP): could not get free
masq entry (free=36692)". The UDP entries are in my case the result of lots of
DNS queries.
What does it mean exactly ? Lack of memory or not enough "available" ports to
create new entries ? What does mean the "(free=xxxx)" in the error messages ? I
think I read somewhere that, by default, for LVS the first usable port is 61000
and that only 4096 simultaneous entries can be created. But it sounds strange to
me because from what I understand in some discussions, it seems to be much more
than that ! What am I misunderstanding and what should I tune ?
Regards,
Laurent Le Foll
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