[PVE-User] Losing quorum - cluster broken

[Nicolas Costes]

Le jeudi 23 avril 2015 12:56:44 vous avez écrit :
> Easiest way I can think of:

# netstat -g | grep vmbr
vmbr0           1      239.192.205.35
vmbr0           1      all-systems.mcast.net
vmbr0           1      ff02::202%36234112
vmbr0           1      ff02::1:ffdd:fde7%36234112
vmbr0           1      ip6-allnodes

I get something similar on both nodes, which seems correct. Then :

# tcpdump -i vmbr0 host 239.192.205.35
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vmbr0, link-type EN10MB (Ethernet), capture size 65535 bytes
14:18:42.312183 IP hongcha...5404 > 239.192.205.35.5405: UDP, length 119
14:18:43.788750 IP hongcha...5404 > 239.192.205.35.5405: UDP, length 193
[...]
14:18:46.004473 IP hongcha...5404 > 239.192.205.35.5405: UDP, length 119
^C
33 packets captured
33 packets received by filter
0 packets dropped by kernel

However, using "tcpdump -vv" shows [bad udp cksum 0xebe8 -> 0xc5f6!]. Don't 
know if relevant.



-- 
Nicolas Costes
Responsable de parc informatique
IUT de la Roche-sur-Yon
Université de Nantes
Tél.: 02 51 47 40 29