[Linux-HA] Re: deadtime, warntime, and drbd
support at bus.okstate.edu
Wed Mar 9 07:32:56 MST 2005
Lars Marowsky-Bree wrote:
>On 2005-03-08T12:27:55, Jason Joines <support at bus.okstate.edu> wrote:
>>>1. You only have ONE heartbeat channel according to these logs. That's
>> I think I have two channels if this is what you meant. Each node is
>>supposed to communicate with the other over both eth0 and eth1 and with
>>the router over eth0.
>OK, that's in your configuration, but if you look at the logs, eth0
>_never_ is reported as up or down. Indeed I missed that it's reported as
>being used, but it never seems to be working even for a single packet.
>I'd suggest investigating that - maybe some firewall rule?
>Hmmm, strange, such a message should have occured about 7 minutes
>earlier. Maybe the switch rebooted, or the network interface truely got
>This will be less of a problem if you figure out what keeps eth0 from
>working for you ;-)
> Lars Marowsky-Brée <lmb at suse.de>
Found it, an unbelievably stupid error on my part. I can't believe
I missed it and I checked several times.
# eth0 heartbeat firewall rule from nodea
iptables -A INPUT -p udp -s 172.18.88.93 --dport 694
# eth0 heartbeat firewall rule from nodeb
iptables -A INPUT -p udp -s 172.18.89.67 --dport 694
Notice the missing "-j ACCEPT". Now I have the missing messages in
Mar 9 08:22:02 nodea heartbeat: info: Link nodeb:eth0 up.
Mar 9 08:22:04 nodeb heartbeat: info: Link nodea:eth0 up.
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