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<p>Hello,</p>
<p>We have several clusters running for different zabbix components.
Some of these clusters consist of 2 zabbix proxies,where nodes run
Mysql, Zabbix-proxy server and a VIP, and a corosync-qdevice. The
MySQL servers are always up to replicate, and are configured in
Master/Master (they both replicate from the other but only one is
supposed to be updated by the proxy running on the master node).</p>
<p>One cluster is prompt to frequent sync errors, with duplicate
entries errors in SQL. When I look at the logs, I can see "Mar 21
09:11:41 zabbix-proxy-01 pacemaker-controld [948]
(pcmk_cpg_membership) info: Group crmd event 89:
zabbix-proxy-02 (node 2 pid 967) left via cluster exit", and
within the next second, a rejoin. The same messages are in the
other node logs, suggesting a split brain, which should not
happen, because there is a quorum device.<br>
</p>
<p>Can you help me to troubleshoot this ? I can provide any
log/configuration required in the process, so let me know.</p>
<p>I'd also like to ask if there is a bit of configuration that can
be done to postpone service start on the other node for two or
three seconds as a quick workaround ?</p>
<p>Please note that the whole setup was deployed by a former
colleague, and that I'm new to Pacemaker as well.<br>
</p>
<p>Thank you<br>
</p>
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<div class="moz-signature"><b><span style="color:#002060">Jérôme
BECOT</span></b> <span style="color:#002060"></span><br>
<span style="color:#002060">Ingénieur DevOps Infrastructure </span><br>
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