Duas synchronization with UVMS KO u_retrieve_ipaddress_from u_gethostbyname_mf Unknown host

Products

• CA Automic Dollar Universe

Issue/Introduction

A node appears with status "Connected with warning" in the Node list and the universe.log of the node, these kind of messages appear every three or five minutes:

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|ERROR|X|IO |pid=p.t| u_retrieve_ipaddress_from | u_gethostbyname_mf(uvms_hostname) returns error: Unknown host (gethostbyname_r(uvms_hostname) returns 0) 
|ERROR|X|IO |pid=p.t| connectUVMSgenericHA | Unable to connect to UVMS uvms_hostname:4184 (2/2) 
|ERROR|X|IO |pid=p.t| connectUVMSgenericHA | No UVMS reachable (2 instances unreachable) 
|ERROR|X|IO |pid=p.t| o_sync_uvms | Unable to connect to UVMS with passphrase
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As a result, depending when this occurs the Node may not be reachable via Univiewer Console in case the Node had never been synchronized with the UVMS like when doing a new installation, the error "Authentication : access denied" may occur:

Environment

OS: All

Version: 6.x or 7.x

Component: Dollar Universe Application Server (node)

Cause

DNS did not have a correct record for the UVMS hostname which keeps the connection from the node to the UVMS impossible, so synchronization of the security from UVMS could no longer be received.

Resolution

Solution:

Fix the DNS record for the UVMS hostname (that can be seen in the list of Nodes - select the Univiewer Management Server  and click Display and check the value for Hostname) so that the server where the Dollar Universe node is installed can resolve its hostname into an ip address.

Workaround:

Create an entry in the server where the Dollar Universe node is installed for the UVMS hostname with its corresponding IP address.