[Users] The SPM host node is in unresponsive mode

[Shu Ming]

Hi,
   I attached one host node in my engine.  Because it is the only one 
node, it is automatically the SPM node.  And it used to run well in my 
engine.  Yesterday, some errors happened in the network work of the host 
node.  That made the node become "unresponsive" in the engine.  I am 
sure the network errors are fixed and want to bring the node back to 
life now.  However, I found that the only one node could not  be 
"confirm as host been rebooted" and could not be set into the 
maintenance mode.   The reason  given there is no active host in the 
datacenter and SPM can not enter into maintenance mode.  It seems that 
it fell into a logic loop here.  Losting network can be quite common in 
developing environment even in production environment, I think we should 
have a way to address this problem on how to repair a host node 
encountering network down for a while.

-- 
Shu Ming<shuming at linux.vnet.ibm.com>
IBM China Systems and Technology Laboratory