<div dir="ltr"><div><div><div><div><div><div><div><div><div>hooray for me, but, how?<br><br></div>I got about 3/4 of Digimer's list done and got stuck.<br></div>I did a pcs cluster status, and, behold, the cluster was up.<br></div>I pinged the ClusterIP and it answered. I didn't know what<br></div>to do with the 'delay="x"' part, that's the thing I couldn't figure<br></div>out. (I've been assuming the delay part is a big deal.)<br><br></div>However, there are more things for me to read and more experiments<br></div>for me to try so I'm good for now.<br><br></div>Thanks to everyone for the prompt help.<br><br></div>j.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 31, 2016 at 5:22 PM, Ken Gaillot <span dir="ltr"><<a href="mailto:kgaillot@redhat.com" target="_blank">kgaillot@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 05/31/2016 03:59 PM, Jay Scott wrote:<br>
> Greetings,<br>
><br>
> Cluster newbie<br>
> Centos 7<br>
> trying to follow the "Clusters from Scratch" intro.<br>
> 2 nodes (yeah, I know, but I'm just learning)<br>
> <PRE><br>
> [root@smoking ~]# pcs status<br>
> Cluster name:<br>
> Last updated: Tue May 31 15:32:18 2016 Last change: Tue May 31<br>
> 15:02:21<br>
> 2016 by root via cibadmin on smoking<br>
> Stack: unknown<br>
<br>
</span>"Stack: unknown" is a big problem. The cluster isn't aware of the<br>
corosync configuration. Did you do the "pcs cluster setup" step?<br>
<span class=""><br>
> Current DC: NONE<br>
> 2 nodes and 1 resource configured<br>
><br>
> OFFLINE: [ mars smoking ]<br>
><br>
> Full list of resources:<br>
><br>
> ClusterIP (ocf::heartbeat:IPaddr2): Stopped<br>
><br>
> PCSD Status:<br>
> smoking: Online<br>
> mars: Online<br>
><br>
> Daemon Status:<br>
> corosync: active/enabled<br>
> pacemaker: active/enabled<br>
> pcsd: active/enabled<br>
> </PRE><br>
><br>
> What concerns me at the moment:<br>
> I did<br>
> pcs resource enable ClusterIP<br>
> while simultaneously doing<br>
> tail -f /var/log/cluster/corosync.log<br>
> (the only log in there)<br>
<br>
</span>The system log (/var/log/messages or whatever your system has<br>
configured) is usually the best place to start. The cluster software<br>
sends messages of interest to end users there, and it includes messages<br>
from all components (corosync, pacemaker, resource agents, etc.).<br>
<br>
/var/log/cluster/corosync.log (and in some configurations,<br>
/var/log/pacemaker.log) have more detailed log information for debugging.<br>
<span class=""><br>
> and nothing happens in the log, but the ClusterIP<br>
> stays "Stopped". Should I be able to ping that addr?<br>
> I can't.<br>
> It also says OFFLINE: and both of my machines are offline,<br>
> though the PCSD says they're online. Which do I trust?<br>
<br>
</span>The first online/offline output is most important, and refers to the<br>
node's status in the actual cluster; the "PSCD" online/offline output<br>
simply tells whether the pcs daemon is running. Typically, the pcs<br>
daemon is enabled at boot and is always running. The pcs daemon is not<br>
part of the clustering itself; it's a front end to configuring and<br>
administering the cluster.<br>
<span class=""><br>
> [root@smoking ~]# pcs property show stonith-enabled<br>
> Cluster Properties:<br>
> stonith-enabled: false<br>
><br>
> yet I see entries in the corosync.log referring to stonith.<br>
> I'm guessing that's normal.<br>
<br>
</span>Yes, you can enable stonith at any time, so the stonith daemon will<br>
still run, to stay aware of the cluster status.<br>
<span class="im HOEnZb"><br>
> My corosync.conf file says the quorum is off.<br>
><br>
> I also don't know what to include in this for any of you to<br>
> help me debug.<br>
><br>
> Ahh, also, is this considered "long", and if so, where would I post<br>
> to the web?<br>
><br>
> thx.<br>
><br>
> j.<br>
<br>
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