<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">2016-03-30 11:27 GMT+02:00 Jan Friesse <span dir="ltr"><<a href="mailto:jfriesse@redhat.com" target="_blank">jfriesse@redhat.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello,<br>
<br>
Due to a change in the switch in one of the datacenters now I have an odd<br>
behaviour in the cluster.<br>
<br>
I am using cman with corosync and pacemaker. The versions are:<br>
<br>
pacemaker-1.1.10-14.el6_5.3.x86_64<br>
corosync-1.4.1-15.el6_4.1.x86_64<br>
cman-3.0.12.1-49.el6.x86_64<br>
<br>
The problem is, when I launch /etc/init.d/pacemaker start and the cman_tool<br>
launch corosync, I don't see any UDP traffic, so the cluster is "broken"<br>
<br>
But if I launch manually the same command "corosync -f" I do see udp<br>
traffic and the totem is correctly sent between nodes.<br>
<br>
It all began with the change in the switch, but I set the tcpdump in the<br>
hosts and I do not see traffic.<br>
<br>
I have tried the multicast and unicast configuration, different network,<br>
but all with the same behaviour.<br>
<br>
What am I missing?<br>
</blockquote>
<br></span>
I'm pretty sure main problem is that:<br>
- corosync -f uses /etc/corosync/corosync.conf as a config file<br>
- cman_tool join uses /etc/cluster/cluster.conf as a config file<br>
<br>
Make sure to "replicate" (specially udpu/udp, ...) configuration from corosync.conf to cluster.conf and I'm pretty sure it will work.<br></blockquote><div><br></div><div>Every modification I do is copied to the other node. The problem is not between the nodes, if they talk to each other they undestand, as it has been the last 2 years.</div><div><br></div><div>But, I don't know why, since the new switch (i've just been informed they changed the switch with a new one) there is no outgoing udp traffic from the nodes.</div><div><br></div><div>And there is no iptables nor selinux nor firewalld activated.</div><div><br></div><div>Regards.</div><div><br></div><div> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Regards,<br>
Honza<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Best Regards<br>
<br>
<br>
<br>
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</blockquote>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div><b><font color="#ff0000">DIA%</font></b></div><div dir="ltr"><b>Roberto Muñoz Gómez</b><div>Técnica de Sistemas TPV's</div><div>Tlf:+34 913985400 Ext:33215</div></div></div></div></div>
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