A new update is available for Base SAS , version 9.4_M3 :
SAS® 9.4 Metadata Server cluster might become unresponsive after a user bulkload program is completed
Adding a new login containing a user ID that is already associated with an existing identity damages the Foundation repository
A SAS® 9.4 metadata user bulk load can take many hours to complete when the SAS® Metadata Server is clustered
The SAS® import procedure causes an out of memory condition, corruption of metadata, or a loss of quorum for a clustered SAS® Metadata Server
Note: A comprehensive list of all SAS hot fixes is available from support.sas.com. You can use the SAS Hot Fix Analysis, Download, and Deployment (SASHFADD) tool to manage your SAS hot fixes.