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Sean Knox wrote:
Hello all,
I've just installed ipvsadm and LVS on a new Debian 3.0 server.
Load balancing works fine, however, connection synchronization
doesn't; I confirmed this via tcpdump (no sync information being
multicast).
Found the problem. The sync. daemon won't transmit unless it actually
has data (connection states) to send out. I know, what a concept. If
your IPVS state table is empty (i.e. no connections), then you won't see
any sync data being sent out. I guessed this was the case after seeing
this in the kern.log:
kernel: IPVS: Each connection entry needs 120 bytes at least
I'm not sure if that actually relates to the synchronization daemon, but
regardless it still put me on the right path.
Joe, is this is the HOWTO/manual already? I searched through them a
couple times and didn't see any mention. If not, I think this would be a
worthy addition- especially for those testing out new LVS clusters (and
who may not have actual connections).
Sean
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