<div dir="ltr">I have dreaded that answer. Maybe I can fix vote quorum on corosync 1.4. Or maybe I can get 2.X working on EL6. Really don't wanna deal with another layer. <br><br>Thanks. <div><br></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 13, 2017 at 2:10 PM, Digimer <span dir="ltr"><<a href="mailto:lists@alteeve.ca" target="_blank">lists@alteeve.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On 13/04/17 05:07 PM, neeraj ch wrote:<br>
> Hi,<br>
><br>
> I have three node cluster set up. My corosync config is as follows.<br>
><br>
> compatibility: whitetank<br>
> totem {<br>
> version: 2<br>
> secauth: on<br>
> threads: 0<br>
> interface {<br>
> member{<br>
> memberaddr: ip<br>
> }<br>
> member{<br>
> memberaddr:ip<br>
> }<br>
> member{<br>
> memberaddr:ip<br>
> }<br>
> bindnetaddr:172.31.31.12<br>
> ringnumber: 0<br>
> mcastport: 5405<br>
> ttl: 1<br>
> }<br>
> transport: udpu<br>
> }<br>
> logging {<br>
> fileline: off<br>
> to_stderr:yes<br>
> to_logfile: yes<br>
> to_syslog:yes<br>
> logfile:/var/log/cluster/<wbr>corosync.log<br>
> debug:off<br>
> timestamp: on<br>
> logger_subsys {<br>
> subsys: AMF<br>
> debug:off<br>
> }<br>
> }<br>
> service {<br>
> name: pacemaker<br>
> ver: 1<br>
> }<br>
> amf {<br>
> mode: disabled<br>
> }<br>
><br>
><br>
><br>
> I went on to partition the master, the rest of the cluster considered<br>
> the master down and elected a new master.<br>
><br>
> But the corosync on the partitoned node didnt realize loss of quoram and<br>
> consequently pacemaker didnt shut down the resources. Giving me a<br>
> multi-master scenario.<br>
><br>
> I have tried adding , quorum tool as votequoram and it seems to give the<br>
> same result.<br>
><br>
> Why isn't corosync not detecting this scenario ? any ideas.<br>
><br>
> I used IP tables to block all UDP traffic in and out of the node . I<br>
> didn't block traffic on lo.<br>
><br>
> any help would be appreciated.<br>
<br>
</div></div>On EL6, cman is the quorum provider. You need to have a skeleton<br>
cluster.conf setup with it's fencing passed over to pacemaker via<br>
fence_pcmk.<br>
<br>
It you use pcs/pcsd, it will configure everything for you. Do NOT<br>
configure corosync directly; You need to configure it inside cman<br>
itself. Reset corosync.conf back to defaults.<br>
<br>
Reference;<br>
<br>
<a href="http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html-single/Clusters_from_Scratch/index.html" rel="noreferrer" target="_blank">http://clusterlabs.org/doc/en-<wbr>US/Pacemaker/1.1-plugin/html-<wbr>single/Clusters_from_Scratch/<wbr>index.html</a><br>
<br>
--<br>
Digimer<br>
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