A list of common problems encountered while imaging

If you see:

NFO property.nodes: nodes = "system:topo:all" (String)
 INFO property.command: command = "offh" (String)
 INFO Topology: Loading topology 'system:topo:all'.
 Talking to the CMC service, please wait Failed to execute offHard command: /usr/share/omf-common-5.4/omf-common/servicecall/xmpp.rb:421:in `make_request': 
Timeout waiting for ServiceCall:  <service-request><sender>default_slice-2013-02-01t12.05.57-05.00</sender><message-id>5</message-id>
<timestamp>1359738362</timestamp><service>cmc</service><method>offHard</method><arguments><argument><name>set</name>
<value>node1-1.grid.orbit-lab.org,node1-10.grid.orbit-lab.org,node1-11.grid.orbit-lab.org,node1-12.grid.orbit-lab.org,node1-13.grid.orbit-lab.org,
node1-14.grid.orbit-lab.org,node1-15.grid.orbit-lab.org,node1-16.grid.orbit-lab.org,node1-17.grid.orbit-lab.org,node1-18.grid.orbit-lab.org,node1-19.grid.orbit-lab.org,
node1-2.grid.orbit-lab.org,node1-20.grid.orbit-lab.org,node1-3l/xmpp.rb:421:in `make_request': Timeout waiting for ServiceCall:  

A service on Internal1 has failed. Please contact an administrator.

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WARN ResponseMatcher: Service call returned OK but no result body was found in:
 WARN ResponseMatcher: <service-response><response-to>pxe_slice-2013-02-01t12.25.41-05.00</response-to><message-id>1</message-id><timestamp>1359739542</timestamp><status>OK</status></service-response>
 WARN ResponseMatcher: 
 WARN ResponseMatcher: Service call returned OK but no result body was found in:
 WARN ResponseMatcher: <service-response><response-to>pxe_slice-2013-02-01t12.25.41-05.00</response-to><message-id>1</message-id><timestamp>1359739542</timestamp><status>OK</status></service-response>
 WARN ResponseMatcher: 

Transient service Failure - Retry

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