DUAS: Nodes with status "Connected with Warning"

Document ID : KB000085810
Last Modified Date : 01/10/2018
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Issue:
A node/s appear with status "Connected with Warning" after one of these situations:
After performing a reorganization on Dollar Universe
After reboot of the server hosting UVMS

The SYN engine wake up time appears in the past, and it is impossible to stop the engine SYN without restarting the whole node via the command unistop force.

Error Message :
This message can appear on the universe.log:

#########
|WARN |X|IO |pid=p.t| o_lock_engines_during_pur | Module Sync UVMS still busy.
######### 

The wakeup time of the engine SYN is stuck in the past.
 
Environment:
OS: All
Cause:
When connection is lost with UVMS during authentication, there is a risk of deadlock leading to "Connected with Warning" message for the node.
Resolution:
In order to fix this problem, a timeout has been added on the authentication request on the Dollar Universe 6 nodes.

Fix Status: Released

Fix Version(s):
Component: Application.Server
Version: Dollar.Universe 6.3.01

Nevertheless, if the node is behind a "DMZ" of Firewall and the replies from UVMS towards the node are blocked, the issue can still occur.
In this case, you need to open the traffic from the UVMS Server towards the IO port of the DUAS Node.