Created attachment 1206901 [details]
bug in log

Description of problem:

In general : 
Occasional automatic provider refresh operations seem to complete successfully, but the Virtual Machines tree view does not contain the top-level datacenter object and several objects below the datacenter are also missing. Initiating a manual refresh fixes the issue and updates the object tree successfully, but after a while the datacenter / VMs tree goes missing again.

error in logs is :


[----] E, [2016-09-30T17:35:33.742352 #121894:130f998] ERROR -- : MIQ(MiqQueue#deliver) Message id: [1000012750596], Error: [undefined local variable or method `id' for Metric::Capture:Module]
[----] E, [2016-09-30T17:35:33.742544 #121894:130f998] ERROR -- : [NameError]: undefined local variable or method `id' for Metric::Capture:Module  Method:[rescue in deliver]
[----] E, [2016-09-30T17:35:33.742708 #121894:130f998] ERROR -- : /var/www/miq/vmdb/app/models/metric/capture.rb:199:in `block (2 levels) in queue_captures'

Version-Release number of selected component (if applicable):


How reproducible:

in customer environment

in customer environment happened after operations : 
appliance cfme version is 5.6.0.13 .
import db , custom automate model, 
register for rhn , 
upgrade to 5.6.1.2 via yum ,terminal . 

Steps to Reproduce:
,....



Actual results:

see attachment 

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Expected results:


Additional info: