[Linux-cluster] trouble trying to get ccs/cman working on one machine, not the other

Lennert Buytenhek buytenh at wantstofly.org
Sat Jun 26 22:07:31 UTC 2004


On Sat, Jun 26, 2004 at 11:30:57PM +0200, Lennert Buytenhek wrote:

> The machine begins ARPing for 10.0.0.9 -- but that IP isn't even used
> at all!  It doesn't broadcast like the other machines do, and after
> waiting for a while, both machines decide to create a new cluster
> instead of trying to talk to each other.

OK, found out why they didn't see each other.  If your /etc/hosts has
something like this:

127.0.0.1               phi localhost.localdomain localhost

(which might be a remnant from an earlier Red Hat install on this box,
created by the installer if you install without initially configuring a
network adapter) the port 6809 broadcasts will happily be sent out over
the loopback interface towards 10.255.255.255, and no wonder that your
machines are not going to see each other.

Still not sure why it's trying to communicate with 10.0.0.8/10.0.0.9
-- it seems to be sending a 'send me your cluster.xml' request to those
addresses right before it tries sending such a packet to 10.0.0.255.

IN= OUT=eth1 SRC=10.0.0.3 DST=10.0.0.8 LEN=509 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=50007 DPT=32769 LEN=489 


cheers,
Lennert




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