Roberto Munoz Gomez napsal(a):
2016-03-30 13:42 GMT+02:00 Jan Friesse <jfrie...@redhat.com>:
Roberto Munoz Gomez napsal(a):
2016-03-30 11:27 GMT+02:00 Jan Friesse <jfrie...@redhat.com>:
Hello,
Due to a change in the switch in one of the datacenters now I have an
odd
behaviour in the cluster.
I am using cman with corosync and pacemaker. The versions are:
pacemaker-1.1.10-14.el6_5.3.x86_64
corosync-1.4.1-15.el6_4.1.x86_64
cman-3.0.12.1-49.el6.x86_64
The problem is, when I launch /etc/init.d/pacemaker start and the
cman_tool
launch corosync, I don't see any UDP traffic, so the cluster is "broken"
But if I launch manually the same command "corosync -f" I do see udp
traffic and the totem is correctly sent between nodes.
It all began with the change in the switch, but I set the tcpdump in the
hosts and I do not see traffic.
I have tried the multicast and unicast configuration, different network,
but all with the same behaviour.
What am I missing?
I'm pretty sure main problem is that:
- corosync -f uses /etc/corosync/corosync.conf as a config file
- cman_tool join uses /etc/cluster/cluster.conf as a config file
Make sure to "replicate" (specially udpu/udp, ...) configuration from
corosync.conf to cluster.conf and I'm pretty sure it will work.
It worked!
I didn't knew cman_tool do not use corosync.conf. Setting udpu in
cluster.conf made it work again.
I am trying to migrate the bindnetaddr option from corosync.conf to
cluster.conf but couldn't make it work. I want to use this interface for
corosync traffic.
cluster.conf configuration file is more similar to corosync.conf with
nodelist defined than corosync.conf without it. For cluster.conf you
don't need to define bindnetaddr. Just put node names into /etc/hosts
and add clusternode tag into cluster.conf. That's it.
inet addr:10.76.125.236 Bcast:10.76.125.239 Mask:255.255.255.240
In man cluster.conf says the last octect must be 0. But despite ccs_config
validate says it is ok, the cman_tool fails.
Do not use network address. Just put nodes into cluster.conf.
Regards,
Honza
Regards.
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