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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Can anyone tell me what the below messages mean?
I didn’t find many hits on the web:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Interface
bond0.IPv6 no longer relevant for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Leaving mDNS
multicast group on interface bond0.IPv6 with address fe80::204:23ff:feba:f120.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Interface
bond0.IPv4 no longer relevant for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Leaving mDNS
multicast group on interface bond0.IPv4 with address 192.168.8.73.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Withdrawing
address record for fe80::204:23ff:feba:f120 on bond0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Withdrawing
address record for 192.168.8.73 on bond0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: New relevant
interface bond0.IPv4 for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Joining mDNS
multicast group on interface bond0.IPv4 with address 192.168.8.73.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Registering new
address record for 192.168.8.73 on bond0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Interface
eth2.IPv6 no longer relevant for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Leaving mDNS
multicast group on interface eth2.IPv6 with address fe80::204:23ff:feba:f120.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Withdrawing
address record for fe80::204:23ff:feba:f120 on eth2.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 kernel: bonding: bond0: Interface
eth2 is already enslaved!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Interface
eth3.IPv6 no longer relevant for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Leaving mDNS
multicast group on interface eth3.IPv6 with address fe80::204:23ff:feba:f120.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 avahi-daemon[6709]: Withdrawing
address record for fe80::204:23ff:feba:f120 on eth3.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:45 atlrdtd1 kernel: bonding: bond0: Interface
eth3 is already enslaved!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:47 atlrdtd1 avahi-daemon[6709]: New relevant
interface bond0.IPv6 for mDNS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:47 atlrdtd1 avahi-daemon[6709]: Joining mDNS
multicast group on interface bond0.IPv6 with address fe80::204:23ff:feba:f120.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sep 14 13:15:47 atlrdtd1 avahi-daemon[6709]: Registering new
address record for fe80::204:23ff:feba:f120 on bond0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Background: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have an Oracle RAC cluster of 2 nodes.
Yesterday one of the nodes rebooted and its log indicates that Oracle forced
the reboot to preserve cluster integrity. There were no other messages
in that node’s /var/log/messages near the time of this message and
reboot. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We use a private lan setup on 2 bonded NICs on each side for
the Oracle Cluster Ready Services to communicate with each
other. That is bond0 and is using 2 Intel GigE NIC ports on
both sides (eth2 and eth3 are the NICs). We found that the
connectivity on the private lan had gone away and on checking found that both
eth2 and eth3 on the node that got these messages was showing no
link. Running “ifdown bond0” followed by “ifup bond0”
re-established links on both eth2 and eth3.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The above messages occurred on the node where bond0’s
links were down less than 2 minutes before the node that rebooted issued the
message about shutting down to preserve cluster integrity. It seems
fairly clear the cause of the reboot was the loss of connectivity but I can’t
really determine from the above log entries WHY bond0 went down. So was
hoping someone had seen something like this and could give me a clue.
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>P.S. We don’t actually use the ipv6 – the relevant
addresses are the ipv4 ones. Apparently the guy who set this up
didn’t disable ipv6 on these NICs but I don’t believe that is the
issue as they have been up for a few months with this configuration.<o:p></o:p></span></font></p>
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<FONT FACE="Arial" SIZE="2">Proud partner. Susan G. Komen for the Cure.</FONT>
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