Active IQ Unified Manager might fail to monitor a cluster after setting new password for the cluster data source

Applies to

• Oncommand Unified Manager 9.4, 9.5
• Active IQ Unified Manager

Issue

When changing password for an ONTAP user to monitor a cluster by OnCommand Unified Manager (OCUM),  you need to edit the cluster data source to set the new password on OCUM.
However, the new password might not be reflected to the acquisition unit (ocieau) , which causes OCUM to fail to monitore the cluster due to an authentication error like the following example in au.log.

2019-04-02 21:47:52,995 ERROR [pool-3-thread-67] c.o.s.a.f.d.BaseDataSource (DataSourceErrorException.java:230) - cluster2.demo.netapp.com [Invalid login credentials] - 
Failed to log in to the cluster: cluster2.demo.netapp.com ([Device name cluster2.demo.netapp.com]: Failed to login to the cluster.) netapp.manage.NaAuthenticationException: Authorization failed
 at netapp.manage.NaServer.invokeHTTP(NaServer.java:1017) ~[manageontap.jar:5.4]
 at netapp.manage.NaServer.invokeElemForXML(NaServer.java:780) ~[manageontap.jar:5.4]
 at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.transport.zapi.ZAPIConnection.invokeElem(ZAPIConnection.java:480) ~[au-datasource-netappfoundation.jar:9.4.0-2018.05.J279]
 ... 18 more
Wrapped by: com.onaro.sanscreen.acquisition.framework.datasource.DataSourceErrorException: Failed to log in to the cluster: cluster2.demo.netapp.com
 at com.onaro.sanscreen.acquisition.framework.datasource.DataSourceErrorException.createWithEnhanced(DataSourceErrorException.java:73) ~[au-framework.jar:9.4.0-2018.05.J279]
 at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.transport.zapi.ZAPIConnection.invokeElem(ZAPIConnection.java:610) ~[au-datasource-netappfoundation.jar:9.4.0-2018.05.J279]