<div dir="ltr">Hi Ulrich,<div><br></div><div>The ClusterMon OCF must be configured with the extra_options parameter:</div><div><br></div><div><div><font face="monospace, monospace"># Sample configuration</font></div><div><font face="monospace, monospace"># ================================</font></div><div><font face="monospace, monospace"># primitive ClusterMon ocf:pacemaker:ClusterMon \</font></div><div><font face="monospace, monospace"># params user="root" update="30" extra_options="-E /path/to/pcmk_snmp_helper.sh -e 192.168.1.2" \</font></div><div><font face="monospace, monospace"># op monitor on-fail="restart" interval="10"</font></div></div><div><br></div><div><br></div><div>Have you looked at the <a href="https://github.com/ClusterLabs/pacemaker/blob/master/extra/pcmk_snmp_helper.sh">pcmk_snmp_helper.sh</a> script that Florian CROUZAT created? It provides a good example of how to get the information provided when an external program is executed by crm_mon. The parameters are passed as Environment variables, similar to how Resource Agents work in Pacemaker:</div><div><br></div><div><font face="monospace, monospace">CRM_notify_recipient<br></font></div><div><font face="monospace, monospace">CRM_notify_node<br></font></div><div><font face="monospace, monospace">CRM_notify_rsc<br></font></div><div><font face="monospace, monospace">CRM_notify_task<br></font></div><div><font face="monospace, monospace">CRM_notify_desc<br></font></div><div><font face="monospace, monospace">CRM_notify_status<br></font></div><div><font face="monospace, monospace">CRM_notify_rc<br></font></div><div><font face="monospace, monospace">CRM_notify_target_rc</font><br></div><div><br></div><div>regards,</div><div>-Brett Moser</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 11, 2015 at 6:46 AM, Ulrich Windl <span dir="ltr"><<a href="mailto:Ulrich.Windl@rz.uni-regensburg.de" target="_blank">Ulrich.Windl@rz.uni-regensburg.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">>>> Riley <<a href="mailto:riley@on.net.nz">riley@on.net.nz</a>> schrieb am 11.05.2015 um 12:05 in Nachricht<br>
<<a href="mailto:55507ECD.7050706@on.net.nz">55507ECD.7050706@on.net.nz</a>>:<br>
<span class="">> Ulrich,<br>
> well I guess 'man crm_mon' does not tell you very much, but<br>
> the ClusterMon resource uses crm_mon, and chapter 7 of the Pacemaker<br>
> documentation,<br>
> <a href="http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html/Pacemaker_Explained/" target="_blank">http://clusterlabs.org/doc/en-US/Pacemaker/1.1-crmsh/html/Pacemaker_Explained/</a><br>
> s-notification-external.html,<br>
> documents the CRM_notify_* environment variables.<br>
<br>
</span>Actually I'm more confused than before now ;-)<br>
<br>
So there is a ClusterMon OCF RA that is started by the cluster, and that monitor starts "crm_mon" to periodically dump the configuration to a HTML file. If all I can get is a text dump of the configuration, it's rather ridiculous.<br>
<br>
I fail to see the connection to the argument to option "-E" in the documentation you are referring to, and section 7.3 (The example) really lacks an example how such variables look like (and what to do with them).<br>
<br>
Regards,<br>
Ulrich<br>
<div class="HOEnZb"><div class="h5"><br>
><br>
> (No arguments/parameters are passed to the program that is called via<br>
> it's command line, everything is through the environment variables)<br>
>> ...<br>
>>> I have set up a virtual test environment of three nodes running CentOS<br>
>>> 6.6 and am having trouble getting a "crm_mon -E " script called *at all*<br>
>>> when anything changes in the cluster (resource killed, node killed,<br>
>>> resource moved, etc.).<br>
>> Never heard of that option, but when considering the documentation, I'm not<br>
> much surprised if it doesn't work as one might expect:<br>
>> -E, --external-agent=value<br>
>> A program to run when resource operations take place.<br>
>><br>
>> This leaves a LOT of room for expectations. ;-)<br>
>><br>
>> What should be a typical use case? Will the program have any parameters?<br>
>><br>
><br>
><br>
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