<p dir="ltr">Not really sure what can be going on... The monitor scripts return the information of all VMs running in the node. In 4.6 the monitoring system uses a push approach, through UDP, so you may have the information being reported by misbehaved monitoring daemons. Sometimes this may happen in dev environments if you are resetting the DB,... </p>
<div class="gmail_quote">On Jul 28, 2014 6:32 PM, "Steven Timm" <<a href="mailto:timm@fnal.gov">timm@fnal.gov</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
I am currently dealing with an unexplained monitoring question<br>
in OpenNebula 4.6 on my development cloud.<br>
<br>
I frequently see OpenNebula return that the status of a ONe<br>
host is "ON" even in the case of a system misconfiguration where,<br>
given the credentials, it is impossible for opennebula to<br>
even ssh into the node as oneadmin.<br>
<br>
<br>
I've fixed all those instances, restarted OpenNebula,<br>
but opennebula still reports a number of VM's<br>
in state "running" even though the node they are running<br>
on was rebooted three days ago and is running no<br>
virtual machines whatsoever.<br>
<br>
I think I could be dealing with database corruption of some type<br>
(generated on the one4.4->one4.6 update), or there could<br>
be some problem with the remote scripts on the nodes.<br>
I saw, and I think I fixed, the problems with the database<br>
corruption (namely one of the hosts and one of the datastores<br>
got knocked out of the database for reasons unknown, and I<br>
re-inserted them). But in any case there is some<br>
error handling that is not working in the monitoring<br>
and something is exiting with status 0 that shouldn't be.<br>
<br>
ideas? Has anyone else seen something like this?<br>
<br>
Steve Timm<br>
<br>
<br>
<br>
------------------------------<u></u>------------------------------<u></u>------<br>
Steven C. Timm, Ph.D <a href="tel:%28630%29%20840-8525" value="+16308408525" target="_blank">(630) 840-8525</a><br>
<a href="mailto:timm@fnal.gov" target="_blank">timm@fnal.gov</a> <a href="http://home.fnal.gov/~timm/" target="_blank">http://home.fnal.gov/~timm/</a><br>
Fermilab Scientific Computing Division, Scientific Computing Services Quad.<br>
Grid and Cloud Services Dept., Associate Dept. Head for Cloud Computing<br>
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</blockquote></div>